Links

Links endpoints of the URLCrop API: 15 operations. Short links with UTM, expiry, password, social preview, safety and destination health.

GETList links/links
POSTCreate a link/links
POSTCreate up to 1,000 links in one background job/links/bulk
POSTImport links from a CSV file/links/import
GETCheck whether a slug is free on a domain/links/availability
GETFetch Open Graph metadata for a URL (nothing stored)/links/metadata
GETGet a link/links/{id}
PATCHUpdate a link/links/{id}
DELETEArchive a link/links/{id}
GETStats shortcut for one link/links/{id}/stats
GETDestination health/links/{id}/health
POSTQueue an immediate health check (10/hour)/links/{id}/health/check
GETSafety scan result and history/links/{id}/safety
GETA link's safety appeals/links/{id}/appeals
GETThe QR code attached to this link/links/{id}/qr-code

List links

GET/links

Scope links:read

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
cursor	query	string	Opaque cursor from `pagination.next_cursor`.
limit	query	integer	Page size (1–100).
include_total	query	boolean	Adds `pagination.total` (estimated above 10,000 rows).
sort	query	string	Sort field; prefix with `-` for descending. Allowed fields are listed per resource (`x-sortable`).
expand[]	query	array of string	Related objects to embed (depth 1). Allowed values are listed per resource (`x-expandable`).
status	query	string	One of: `active`, `paused`, `expired`, `blocked`, `archived`
domain	query	string
campaign_id	query	string	Comma-separated `cmp_…` ids; a link matches when its campaign is any of them.
tag_ids	query	string	Comma-separated `tag_…` ids (at most 50); a link matches when it has any of them. Ids of another workspace or of deleted tags match nothing.
has_qr	query	boolean
health	query	string	Destination health filter (`GET /links/{id}/health` states). `healthy` includes links still `degraded` internally; `unhealthy` is three consecutive failures; `unknown` is never checked or not monitored.One of: `healthy`, `unhealthy`, `unknown`
q	query	string	Search slug, title and destination.
created_after	query	string
created_before	query	string

Request example

GET /linkscURL

curl 'https://api.urlcrop.com/v1/links' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Links

LinkList schema and example

Field	Type	Description
datarequired	array of Link
data[].idrequired	string
data[].objectrequired	string	Value: `link`
data[].workspace_idrequired	string
data[].is_testrequired	boolean
data[].domain_id	string \| null	`null` for the system domain `crop.sh`.
data[].domainrequired	string
data[].slugrequired	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
data[].short_urlrequired	string	Test-mode links use `https://test.crop.sh/<slug>`, which never redirects. For the system domain the host follows `Workspace.short_link_host`: while staff run the backup short domain (ops switch `short_host_fallback`) new responses show the backup host (for example `https://go.crop.sh/diwali`). Both hosts redirect the same slug.Format: uri
data[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
data[].title	string \| null	max length 200
data[].description	string \| null	max length 1000
data[].statusrequired	string	`blocked` is set by safety; `expired` by `expires_at`/`click_limit`; `archived` by delete.One of: `active`, `paused`, `expired`, `blocked`, `archived`
data[].utm	Utm \| null
data[].utm.source	string	max length 200
data[].utm.medium	string	max length 200
data[].utm.campaign	string	max length 200
data[].utm.term	string	max length 200
data[].utm.content	string	max length 200
data[].utm_template_id	string \| null
data[].password_protectedrequired	boolean	The password itself is write-only.
data[].expires_at	string \| null	Format: date-time
data[].expired_redirect_url	string \| null	Format: uri
data[].click_limit	integer \| null	≥ 1
data[].og	OpenGraph \| null
data[].og.title	string	max length 120
data[].og.description	string	max length 300
data[].og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
data[].append_click_id	boolean \| null	`null` inherits the workspace setting.
data[].campaign_id	string \| null
data[].tag_idsrequired	array of string
data[].pixel_ids	array of string	Phase 2 (Pro+).
data[].qr_code_id	string \| null
data[].landing_kind	string \| null	Set on the link of a dynamic UPI (`upi_confirm`) or vCard (`vcard`) QR code: scans open URLCrop's payee confirmation or contact page, so the destination is not a web URL, is never scanned (`safety.scanned_at` stays null) and is changed on the QR code (`PATCH /v1/links/{id}` with `destination_url` → `422 validation_failed`, `details[].code: qr_landing_link`). Null for every other link.One of: `upi_confirm`, `vcard`, `null`
data[].routing_rules	array of RoutingRule	Phase 2; only present with `expand[]=routing_rules`.
data[].routing_rules[].id	string
data[].routing_rules[].typerequired	string	One of: `geo`, `device`, `os`, `language`, `time`, `ab`
data[].routing_rules[].priority	integer	≥ 0
data[].routing_rules[].conditions	object
data[].routing_rules[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
data[].routing_rules[].weight	integer	`ab` only.≥ 1, ≤ 100
data[].routing_rules[].enabled	boolean
data[].safetyrequired	object
data[].safety.statusrequired	string	`pending` and `flagged` show the interstitial; `blocked` never redirects.One of: `safe`, `pending`, `flagged`, `blocked`
data[].safety.risk_score	integer \| null	≥ 0, ≤ 100
data[].safety.scanned_at	string \| null	Format: date-time
data[].healthrequired	object
data[].health.statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
data[].health.http_status	integer \| null
data[].health.last_checked_at	string \| null	Format: date-time
data[].clicksrequired	integer	Lifetime clicks from rollups (refreshed within 5 s).
data[].clicks_7d	integer	List responses only. Clicks (clicks and QR scans, like `clicks`) in the last 7 UTC days including today, from `rollup_daily`; today is partial.
data[].clicks_prev_7d	integer	List responses only. Clicks in the 7 UTC days before `clicks_7d`'s window, for the change indicator.
data[].scansrequired	integer
data[].last_event_at	string \| null	Format: date-time
data[].metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
data[].created_by	string \| null	Member id, or API key id when created by a key.
data[].created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
data[].updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
data[].archived_at	string \| null	Format: date-time
paginationrequired	Pagination
pagination.limitrequired	integer
pagination.has_morerequired	boolean
pagination.next_cursorrequired	string \| null	Pass as `cursor` to fetch the next page. `null` on the last page.
pagination.total	integer	Only with `include_total=true`; estimated above 10,000.

200 response: 200 responseJSON

{
  "data": [
    {
      "id": "lnk_01JB4N8ZK3Q9WXYZ0123456789",
      "object": "link",
      "workspace_id": "ws_01JB4M0A1B2C3D4E5F6G7H8J9K",
      "is_test": false,
      "domain_id": "string",
      "domain": "crop.sh",
      "slug": "diwali",
      "short_url": "https://crop.sh/diwali",
      "destination_url": "https://example.com",
      "title": "string",
      "description": "string",
      "status": "active",
      "utm": {
        "source": "string",
        "medium": "string",
        "campaign": "string",
        "term": "string",
        "content": "string"
      },
      "utm_template_id": "string",
      "password_protected": false,
      "expires_at": "2026-12-05T10:15:30.000Z",
      "expired_redirect_url": "https://example.com",
      "click_limit": 1,
      "og": {
        "title": "string",
        "description": "string",
        "image_url": "https://example.com"
      },
      "append_click_id": false,
      "campaign_id": "string",
      "tag_ids": [
        "string"
      ],
      "pixel_ids": [
        "string"
      ],
      "qr_code_id": "string",
      "landing_kind": "upi_confirm",
      "routing_rules": [
        {
          "id": "rr_01JB4N9A0B1C2D3E4F5G6H7J8K",
          "type": "geo",
          "priority": 0,
          "conditions": {
            "countries": null,
            "devices": null,
            "os": null,
            "languages": null,
            "time": null
          },
          "destination_url": "https://example.com",
          "weight": 1,
          "enabled": true
        }
      ],
      "safety": {
        "status": "safe",
        "risk_score": 0,
        "scanned_at": "2026-12-05T10:15:30.000Z"
      },
      "health": {
        "status": "healthy",
        "http_status": 0,
        "last_checked_at": "2026-12-05T10:15:30.000Z"
      },
      "clicks": 0,
      "clicks_7d": 0,
      "clicks_prev_7d": 0,
      "scans": 0,
      "last_event_at": "2026-12-05T10:15:30.000Z",
      "metadata": {},
      "created_by": "string",
      "created_at": "2026-12-05T10:15:30.000Z",
      "updated_at": "2026-12-05T10:15:30.000Z",
      "archived_at": "2026-12-05T10:15:30.000Z"
    }
  ],
  "pagination": {
    "limit": 0,
    "has_more": false,
    "next_cursor": "string",
    "total": 0
  }
}

Example generated from the schema.

400 response

Malformed request (invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand). Any credentialed operation can return it: a credential in the query string (api_key, access_token) is invalid_query, and a session request without X-Workspace-Id on a workspace-scoped route is missing_header.

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Missing or invalid credentials. Always code: unauthenticated; details[0].code gives the reason (missing_credentials, invalid_api_key, api_key_revoked, api_key_expired, session_expired, publishable_key_not_allowed).

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Permitted credential but not allowed: insufficient_scope, insufficient_role, workspace_mismatch, wrong_environment, two_factor_required (also Owner/Admin writes on Business+ after the 14-day 2FA grace, details[0].grace_ends_at), step_up_required, email_verification_required, signups_paused (sign-up while the platform setting is on), write_blocked_past_due, workspace_suspended, content_policy_hold, origin_not_allowed, or a plan limit (type: plan_limit_error — feature_not_in_plan, plan_limit_reached with param naming the plan limit key). Any credentialed operation can return it: an API key on a session-only route is insufficient_scope, a session write without an allowed Origin is origin_not_allowed, and an API key whose plan has no API access is feature_not_in_plan.

Error codes: two_factor_required, step_up_required, email_verification_required, signups_paused, insufficient_scope, insufficient_role, workspace_mismatch, wrong_environment, workspace_suspended, write_blocked_past_due, content_policy_hold, origin_not_allowed, feature_not_in_plan, plan_limit_reached

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

422 response

Validation failure (validation_failed, destination_invalid, destination_blocked (details[0].code is policy_violation, with the category, for content-policy blocks), slug_invalid, slug_reserved, slug_not_allowed, handle_not_allowed, title_not_allowed, domain_not_active, domain_proxied, idempotency_key_reused, unsupported_qr_type, qr_unreadable, policy_acceptance_required, …).

Error codes: validation_failed, destination_invalid, destination_blocked, slug_invalid, slug_reserved, domain_not_active, domain_proxied, idempotency_key_reused, unsupported_qr_type, qr_unreadable, policy_acceptance_required

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Create a link

POST/links

Scope links:write

The destination runs the synchronous safety fast path (≤ 800 ms, no external calls). A denylist entry, feed hit or fresh malicious verdict fails with 422 destination_blocked; otherwise the link is created with safety.status: pending (or safe from a fresh verdict) and deep-scanned asynchronously, and visitors of untrusted workspaces see the interstitial until the scan completes. Accounts with an unverified email cannot create links (403 email_verification_required). Monthly quota exhausted → 403 plan_limit_reached (param: links_per_month). A custom slug needs custom_slugs (Starter+, else 403 feature_not_in_plan); without one a random 7-character code is generated on every plan. A custom slug that is taken, or held after another workspace released it on the shared domain, answers 409 slug_taken (details[0].code: held; available_after only for a 30-day hold, absent for a never-reused generated code).

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
Idempotency-Key	header	string	Unique string (UUID v4 recommended, ≤ 255 chars). Repeating a POST with the same key and body within 24 hours replays the original response with `Idempotent-Replayed: true`. One-time secrets are never cached: a replay returns them as `null` with `Idempotent-Redacted: secret`.

Request body application/json

Field	Type	Description
destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
domain	string	Hostname of an `active` custom domain, or `crop.sh` (default is the workspace default domain).
slug	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
title	string	max length 200
description	string	max length 1000
utm	Utm	UTM parameters appended to the destination. Values may contain `{{slug}}`, `{{domain}}`, `{{campaign}}`.
utm.source	string	max length 200
utm.medium	string	max length 200
utm.campaign	string	max length 200
utm.term	string	max length 200
utm.content	string	max length 200
utm_template_id	string	Starter+. Applied before `utm`; explicit `utm` keys win.
password	string	Starter+.min length 4, max length 64
expires_at	string	ISO 8601 UTC with milliseconds.Format: date-time
expired_redirect_url	string	Absolute http(s) URL.Format: uri · max length 2048
click_limit	integer	≥ 1
og	OpenGraph	Custom social preview shown by WhatsApp, Slack, X, LinkedIn.
og.title	string	max length 120
og.description	string	max length 300
og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
append_click_id	boolean \| null
campaign_id	string
tag_ids	array of string	max items 20
pixel_ids	array of string	Phase 2.
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
require_reachable	boolean	Fail with `422 destination_unreachable` if a HEAD/GET pre-check does not return 2xx/3xx.
create_qr_code	boolean	Also create a dynamic `url` QR code with the default design for this link in the same transaction. Needs `qr:write` too and counts toward `dynamic_qr_total` (`403 plan_limit_reached`, nothing is created). Not allowed when the create is held for approval (`422 validation_failed`, `param: create_qr_code`).

Request body: Just a destinationJSON

{
  "destination_url": "https://brand.in/diwali-sale"
}

Request body: Custom domain, slug, UTM, expiry and previewJSON

{
  "destination_url": "https://brand.in/diwali-sale",
  "domain": "go.brand.in",
  "slug": "diwali",
  "title": "Diwali Sale 2026",
  "utm": {
    "source": "whatsapp",
    "medium": "broadcast",
    "campaign": "diwali-2026"
  },
  "expires_at": "2026-11-15T18:29:59.000Z",
  "expired_redirect_url": "https://brand.in",
  "og": {
    "title": "Up to 40% off this Diwali",
    "description": "Festive offers on the whole range.",
    "image_url": "https://api.urlcrop.com/v1/files/fil_01JB4PS7T8U9V0W1X2Y3Z4A5B6"
  },
  "campaign_id": "cmp_01JB4N0DIWALI2026XXXXXXXXX",
  "tag_ids": [
    "tag_01JB4PD4E5F6G7H8J9K0L1M2N3"
  ],
  "create_qr_code": true
}

Request example

POST /linkscURL

curl -X POST 'https://api.urlcrop.com/v1/links' \
  -H 'Authorization: Bearer uc_live_…' \
  -H 'Content-Type: application/json' \
  -d '{
  "destination_url": "https://brand.in/diwali-sale"
}'

Responses

201 response

Link created

Link schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `link`
workspace_idrequired	string
is_testrequired	boolean
domain_id	string \| null	`null` for the system domain `crop.sh`.
domainrequired	string
slugrequired	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
short_urlrequired	string	Test-mode links use `https://test.crop.sh/<slug>`, which never redirects. For the system domain the host follows `Workspace.short_link_host`: while staff run the backup short domain (ops switch `short_host_fallback`) new responses show the backup host (for example `https://go.crop.sh/diwali`). Both hosts redirect the same slug.Format: uri
destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
title	string \| null	max length 200
description	string \| null	max length 1000
statusrequired	string	`blocked` is set by safety; `expired` by `expires_at`/`click_limit`; `archived` by delete.One of: `active`, `paused`, `expired`, `blocked`, `archived`
utm	Utm \| null
utm.source	string	max length 200
utm.medium	string	max length 200
utm.campaign	string	max length 200
utm.term	string	max length 200
utm.content	string	max length 200
utm_template_id	string \| null
password_protectedrequired	boolean	The password itself is write-only.
expires_at	string \| null	Format: date-time
expired_redirect_url	string \| null	Format: uri
click_limit	integer \| null	≥ 1
og	OpenGraph \| null
og.title	string	max length 120
og.description	string	max length 300
og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
append_click_id	boolean \| null	`null` inherits the workspace setting.
campaign_id	string \| null
tag_idsrequired	array of string
pixel_ids	array of string	Phase 2 (Pro+).
qr_code_id	string \| null
landing_kind	string \| null	Set on the link of a dynamic UPI (`upi_confirm`) or vCard (`vcard`) QR code: scans open URLCrop's payee confirmation or contact page, so the destination is not a web URL, is never scanned (`safety.scanned_at` stays null) and is changed on the QR code (`PATCH /v1/links/{id}` with `destination_url` → `422 validation_failed`, `details[].code: qr_landing_link`). Null for every other link.One of: `upi_confirm`, `vcard`, `null`
routing_rules	array of RoutingRule	Phase 2; only present with `expand[]=routing_rules`.
routing_rules[].id	string
routing_rules[].typerequired	string	One of: `geo`, `device`, `os`, `language`, `time`, `ab`
routing_rules[].priority	integer	≥ 0
routing_rules[].conditions	object
routing_rules[].conditions.countries	array of string
routing_rules[].conditions.devices	array of string
routing_rules[].conditions.os	array of string
routing_rules[].conditions.languages	array of string
routing_rules[].conditions.time	object
routing_rules[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
routing_rules[].weight	integer	`ab` only.≥ 1, ≤ 100
routing_rules[].enabled	boolean
safetyrequired	object
safety.statusrequired	string	`pending` and `flagged` show the interstitial; `blocked` never redirects.One of: `safe`, `pending`, `flagged`, `blocked`
safety.risk_score	integer \| null	≥ 0, ≤ 100
safety.scanned_at	string \| null	Format: date-time
healthrequired	object
health.statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
health.http_status	integer \| null
health.last_checked_at	string \| null	Format: date-time
clicksrequired	integer	Lifetime clicks from rollups (refreshed within 5 s).
clicks_7d	integer	List responses only. Clicks (clicks and QR scans, like `clicks`) in the last 7 UTC days including today, from `rollup_daily`; today is partial.
clicks_prev_7d	integer	List responses only. Clicks in the 7 UTC days before `clicks_7d`'s window, for the change indicator.
scansrequired	integer
last_event_at	string \| null	Format: date-time
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
created_by	string \| null	Member id, or API key id when created by a key.
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
archived_at	string \| null	Format: date-time

201 response: createdJSON

{
  "id": "lnk_01JB4N8ZK3Q9WXYZ0123456789",
  "object": "link",
  "workspace_id": "ws_01JB4M0A1B2C3D4E5F6G7H8J9K",
  "is_test": false,
  "domain_id": "dom_01JB4R5S6T7U8V9W0X1Y2Z3A4B",
  "domain": "go.brand.in",
  "slug": "diwali",
  "short_url": "https://go.brand.in/diwali",
  "destination_url": "https://brand.in/diwali-sale",
  "title": "Diwali Sale 2026",
  "description": null,
  "status": "active",
  "utm": {
    "source": "whatsapp",
    "medium": "broadcast",
    "campaign": "diwali-2026"
  },
  "utm_template_id": null,
  "password_protected": false,
  "expires_at": "2026-11-15T18:29:59.000Z",
  "expired_redirect_url": "https://brand.in",
  "click_limit": null,
  "og": {
    "title": "Up to 40% off this Diwali",
    "description": "Festive offers on the whole range.",
    "image_url": "https://api.urlcrop.com/v1/files/fil_01JB4PS7T8U9V0W1X2Y3Z4A5B6"
  },
  "append_click_id": null,
  "campaign_id": "cmp_01JB4N0DIWALI2026XXXXXXXXX",
  "tag_ids": [
    "tag_01JB4PD4E5F6G7H8J9K0L1M2N3"
  ],
  "pixel_ids": [],
  "qr_code_id": "qr_01JB4P0Q1R2S3T4U5V6W7X8Y9Z",
  "safety": {
    "status": "safe",
    "risk_score": 2,
    "scanned_at": "2026-12-05T10:15:30.000Z"
  },
  "health": {
    "status": "unknown",
    "http_status": null,
    "last_checked_at": null
  },
  "clicks": 0,
  "scans": 0,
  "last_event_at": null,
  "metadata": {},
  "created_by": "key_01JB4M4E5F6G7H8J9K0L1M2N3P",
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z",
  "archived_at": null
}

202 response

Waiting for approval: the workspace has approvals on and the caller's role needs review (Editor). Nothing is published until an Owner or Admin approves.

ApprovalRequest schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `approval_request`
resource_typerequired	string	Links at this phase; `qr_code`, `page`, `campaign` follow with those resources.Value: `link`
resource_idrequired	string \| null	The link (`lnk_…`) changed or archived; for `create`, null until applied, then the new link.
actionrequired	string	One of: `create`, `update`, `delete`
payloadrequired	object	The proposed body (`LinkCreate` for `create`, `LinkUpdate` for `update`, `{}` for `delete`), with `password` replaced by `password_set: true`.
statusrequired	string	`pending` until reviewed; `applied` once approved and written; `approved` only while the change is being applied; `expired` 14 days after creation without a decision.One of: `pending`, `approved`, `rejected`, `cancelled`, `applied`, `expired`
requested_byrequired	ApprovalActor
requested_by.namerequired	string \| null
requested_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_byrequired	ApprovalActor \| null
reviewed_by.namerequired	string \| null
reviewed_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_atrequired	string \| null	Format: date-time
review_noterequired	string \| null	Reviewer comment; the reason when rejected.
applied_atrequired	string \| null	Format: date-time
expires_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
is_minerequired	boolean	The signed-in user made the request.
targetrequired	object \| null	Current short URL and destination of the link an `update` or `delete` targets (null for `create`).
target.short_urlrequired	string
target.destination_urlrequired	string
target.statusrequired	string
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time

202 response: 202 responseJSON

{
  "id": "string",
  "object": "approval_request",
  "resource_type": "link",
  "resource_id": "string",
  "action": "create",
  "payload": {},
  "status": "pending",
  "requested_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_at": "2026-12-05T10:15:30.000Z",
  "review_note": "string",
  "applied_at": "2026-12-05T10:15:30.000Z",
  "expires_at": "2026-12-05T10:15:30.000Z",
  "is_mine": false,
  "target": {
    "short_url": "string",
    "destination_url": "string",
    "status": "string"
  },
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

500 response

Unexpected server error (internal_error, upstream_unavailable, service_unavailable, timeout).

Error codes: invalid_json, internal_error, upstream_unavailable, service_unavailable, timeout

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

500 response: 500 responseJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_json",
    "message": "string",
    "param": "string",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://example.com",
    "details": [
      {
        "path": "string",
        "code": "string",
        "message": "string",
        "limit": 0,
        "used": 0,
        "resets_at": "2026-12-05T10:15:30.000Z",
        "upgrade_to": "string"
      }
    ]
  }
}

Example generated from the schema.

Create up to 1,000 links in one background job

POST/links/bulk

Scope links:write
pro plan and above

Pro and above (bulk_csv; below Pro 403 feature_not_in_plan). The body is validated as a whole (a malformed row fails the request with 422 validation_failed, param = links.<index>.<field>); the rows are then created by a background job and the call answers 202 with the job_ id. Each row goes through the same path as POST /v1/links: safety fast path (blocked destinations fail that row with destination_blocked) and async deep scan, the links_per_month quota (rows past the quota fail individually with plan_limit_reached; never billed as overage), custom_slugs for a slug, and the creation velocity of the workspace's trust tier (the job pauses with a notice and resumes). Progress and per-row errors: GET /v1/jobs/{id}; every row's result as CSV: GET /v1/jobs/{id}/results. Body ≤ 10 MB. Send an Idempotency-Key: a retried request returns the same job.

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
Idempotency-Key	header	string	Unique string (UUID v4 recommended, ≤ 255 chars). Repeating a POST with the same key and body within 24 hours replays the original response with `Idempotent-Replayed: true`. One-time secrets are never cached: a replay returns them as `null` with `Idempotent-Redacted: secret`.

Request body application/json

Field	Type	Description
linksrequired	array of LinkCreate	min items 1, max items 1000
links[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
links[].domain	string	Hostname of an `active` custom domain, or `crop.sh` (default is the workspace default domain).
links[].slug	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
links[].title	string	max length 200
links[].description	string	max length 1000
links[].utm	Utm	UTM parameters appended to the destination. Values may contain `{{slug}}`, `{{domain}}`, `{{campaign}}`.
links[].utm.source	string	max length 200
links[].utm.medium	string	max length 200
links[].utm.campaign	string	max length 200
links[].utm.term	string	max length 200
links[].utm.content	string	max length 200
links[].utm_template_id	string	Starter+. Applied before `utm`; explicit `utm` keys win.
links[].password	string	Starter+.min length 4, max length 64
links[].expires_at	string	ISO 8601 UTC with milliseconds.Format: date-time
links[].expired_redirect_url	string	Absolute http(s) URL.Format: uri · max length 2048
links[].click_limit	integer	≥ 1
links[].og	OpenGraph	Custom social preview shown by WhatsApp, Slack, X, LinkedIn.
links[].og.title	string	max length 120
links[].og.description	string	max length 300
links[].og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
links[].append_click_id	boolean \| null
links[].campaign_id	string
links[].tag_ids	array of string	max items 20
links[].pixel_ids	array of string	Phase 2.
links[].metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
links[].require_reachable	boolean	Fail with `422 destination_unreachable` if a HEAD/GET pre-check does not return 2xx/3xx.
links[].create_qr_code	boolean	Also create a dynamic `url` QR code with the default design for this link in the same transaction. Needs `qr:write` too and counts toward `dynamic_qr_total` (`403 plan_limit_reached`, nothing is created). Not allowed when the create is held for approval (`422 validation_failed`, `param: create_qr_code`).

Request body: twoJSON

{
  "links": [
    {
      "destination_url": "https://brand.in/diwali-sale",
      "title": "Diwali Sale 2026"
    },
    {
      "destination_url": "https://brand.in/new-arrivals",
      "slug": "new-arrivals"
    }
  ]
}

Request example

POST /links/bulkcURL

curl -X POST 'https://api.urlcrop.com/v1/links/bulk' \
  -H 'Authorization: Bearer uc_live_…' \
  -H 'Content-Type: application/json' \
  -d '{
  "links": [
    {
      "destination_url": "https://brand.in/diwali-sale",
      "title": "Diwali Sale 2026"
    },
    {
      "destination_url": "https://brand.in/new-arrivals",
      "slug": "new-arrivals"
    }
  ]
}'

Responses

202 response
Job accepted
JobAccepted schema and example
Field Type Description
job_idrequired string
statusrequired string One of: queued, processing, paused, completed, failed
totalrequired integer
202 response: acceptedJSON
```
{
  "job_id": "job_01JB4PR6S7T8U9V0W1X2Y3Z4A5",
  "status": "queued",
  "total": 2
}
```

Field	Type	Description
job_idrequired	string
statusrequired	string	One of: `queued`, `processing`, `paused`, `completed`, `failed`
totalrequired	integer

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

413 response

Body over the route's limit (payload_too_large; 10 MB on bulk create and CSV import).

Error codes: invalid_json, payload_too_large

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

413 response: 413 responseJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_json",
    "message": "string",
    "param": "string",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://example.com",
    "details": [
      {
        "path": "string",
        "code": "string",
        "message": "string",
        "limit": 0,
        "used": 0,
        "resets_at": "2026-12-05T10:15:30.000Z",
        "upgrade_to": "string"
      }
    ]
  }
}

Example generated from the schema.

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Import links from a CSV file

POST/links/import

Scope links:write
pro plan and above

Pro and above (bulk_csv). multipart/form-data with one file part: UTF-8 CSV (optional BOM), comma separated, RFC 4180 quoting, a header row naming the columns destination_url (required), slug, title and description (any order; other columns fail with 422 csv_invalid). At most 10 MB and 10,000 data rows; blank lines are skipped. A file that cannot be read as CSV (bad quoting, missing destination_url column, no data rows, too many rows) fails with 422 csv_invalid and details naming the rows. Rows that parse but are invalid (bad URL, field too long) are recorded as failed rows of the job (validation_failed) and the rest are created exactly as POST /v1/links/bulk does. Answers 202 with the job_ id. Exported results neutralise spreadsheet formulas (cells starting with =, +, -, @, tab or carriage return are prefixed with ').

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
Idempotency-Key	header	string	Unique string (UUID v4 recommended, ≤ 255 chars). Repeating a POST with the same key and body within 24 hours replays the original response with `Idempotent-Replayed: true`. One-time secrets are never cached: a replay returns them as `null` with `Idempotent-Redacted: secret`.

Request body multipart/form-data

Field	Type	Description
filerequired	string	The CSV file (≤ 10 MB, ≤ 10,000 rows).Format: binary

Request body: Request bodyJSON

{
  "file": "string"
}

Example generated from the schema.

Request example

POST /links/importcURL

curl -X POST 'https://api.urlcrop.com/v1/links/import' \
  -H 'Authorization: Bearer uc_live_…' \
  -H 'Content-Type: multipart/form-data' \
  -d '{
  "file": "string"
}'

Responses

202 response
Job accepted
JobAccepted schema and example
Field Type Description
job_idrequired string
statusrequired string One of: queued, processing, paused, completed, failed
totalrequired integer
202 response: 202 responseJSON
```
{
  "job_id": "job_01JB4PR6S7T8U9V0W1X2Y3Z4A5",
  "status": "queued",
  "total": 0
}
```
Example generated from the schema.

Field	Type	Description
job_idrequired	string
statusrequired	string	One of: `queued`, `processing`, `paused`, `completed`, `failed`
totalrequired	integer

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

413 response

Body over the route's limit (payload_too_large; 10 MB on bulk create and CSV import).

Error codes: invalid_json, payload_too_large

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

413 response: 413 responseJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_json",
    "message": "string",
    "param": "string",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://example.com",
    "details": [
      {
        "path": "string",
        "code": "string",
        "message": "string",
        "limit": 0,
        "used": 0,
        "resets_at": "2026-12-05T10:15:30.000Z",
        "upgrade_to": "string"
      }
    ]
  }
}

Example generated from the schema.

415 response

Wrong Content-Type (unsupported_media_type; CSV import needs multipart/form-data).

Error codes: invalid_json, unsupported_media_type

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

415 response: 415 responseJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_json",
    "message": "string",
    "param": "string",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://example.com",
    "details": [
      {
        "path": "string",
        "code": "string",
        "message": "string",
        "limit": 0,
        "used": 0,
        "resets_at": "2026-12-05T10:15:30.000Z",
        "upgrade_to": "string"
      }
    ]
  }
}

Example generated from the schema.

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Check whether a slug is free on a domain

GET/links/availability

Scope links:read

reason: taken (exact, or equal under lower() on the shared domain, any workspace, archived links included), held (released on the shared domain by another workspace and still held: a custom slug for 30 days if its link was live 24 hours or got a click, with available_after saying when it frees up; a generated code permanently, with no available_after), reserved, invalid, domain_not_active. An unknown domain or another workspace's domain answers 404. Limited to 60 checks a minute per session user or API key and 120 a minute per workspace (429 rate_limited, param: endpoint, details[0].code: links_availability, with Retry-After).

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
domainrequired	query	string
slugrequired	query	string

Request example

GET /links/availabilitycURL

curl 'https://api.urlcrop.com/v1/links/availability?domain=string&slug=string' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Availability

LinkAvailability schema and example

Field	Type	Description
domainrequired	string
slugrequired	string
availablerequired	boolean
reason	string \| null	One of: `taken`, `held`, `reserved`, `invalid`, `domain_not_active`, `null`
available_after	string \| null	With `reason: held`: when the 30-day hold on a custom slug released by another workspace on the shared domain ends (decision 17). Absent (`null`) for generated codes, which are never reused. Never says who released it.Format: date-time

200 response: 200 responseJSON

{
  "domain": "string",
  "slug": "string",
  "available": false,
  "reason": "taken",
  "available_after": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Fetch Open Graph metadata for a URL (nothing stored)

GET/links/metadata

Scope links:read

Parameters

Name	In	Type	Description
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
urlrequired	query	string

Request example

GET /links/metadatacURL

curl 'https://api.urlcrop.com/v1/links/metadata?url=https%3A%2F%2Fexample.com' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response
Metadata
LinkMetadata schema and example
Field Type Description
urlrequired string Format: uri
title string | null
description string | null
image_url string | null Format: uri
site_name string | null
favicon_url string | null Format: uri
200 response: 200 responseJSON
```
{
  "url": "https://example.com",
  "title": "string",
  "description": "string",
  "image_url": "https://example.com",
  "site_name": "string",
  "favicon_url": "https://example.com"
}
```
Example generated from the schema.

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Get a link

GET/links/{id}

Scope links:read

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
expand[]	query	array of string	Related objects to embed (depth 1). Allowed values are listed per resource (`x-expandable`).

Request example

GET /links/{id}cURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Link

Link schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `link`
workspace_idrequired	string
is_testrequired	boolean
domain_id	string \| null	`null` for the system domain `crop.sh`.
domainrequired	string
slugrequired	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
short_urlrequired	string	Test-mode links use `https://test.crop.sh/<slug>`, which never redirects. For the system domain the host follows `Workspace.short_link_host`: while staff run the backup short domain (ops switch `short_host_fallback`) new responses show the backup host (for example `https://go.crop.sh/diwali`). Both hosts redirect the same slug.Format: uri
destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
title	string \| null	max length 200
description	string \| null	max length 1000
statusrequired	string	`blocked` is set by safety; `expired` by `expires_at`/`click_limit`; `archived` by delete.One of: `active`, `paused`, `expired`, `blocked`, `archived`
utm	Utm \| null
utm.source	string	max length 200
utm.medium	string	max length 200
utm.campaign	string	max length 200
utm.term	string	max length 200
utm.content	string	max length 200
utm_template_id	string \| null
password_protectedrequired	boolean	The password itself is write-only.
expires_at	string \| null	Format: date-time
expired_redirect_url	string \| null	Format: uri
click_limit	integer \| null	≥ 1
og	OpenGraph \| null
og.title	string	max length 120
og.description	string	max length 300
og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
append_click_id	boolean \| null	`null` inherits the workspace setting.
campaign_id	string \| null
tag_idsrequired	array of string
pixel_ids	array of string	Phase 2 (Pro+).
qr_code_id	string \| null
landing_kind	string \| null	Set on the link of a dynamic UPI (`upi_confirm`) or vCard (`vcard`) QR code: scans open URLCrop's payee confirmation or contact page, so the destination is not a web URL, is never scanned (`safety.scanned_at` stays null) and is changed on the QR code (`PATCH /v1/links/{id}` with `destination_url` → `422 validation_failed`, `details[].code: qr_landing_link`). Null for every other link.One of: `upi_confirm`, `vcard`, `null`
routing_rules	array of RoutingRule	Phase 2; only present with `expand[]=routing_rules`.
routing_rules[].id	string
routing_rules[].typerequired	string	One of: `geo`, `device`, `os`, `language`, `time`, `ab`
routing_rules[].priority	integer	≥ 0
routing_rules[].conditions	object
routing_rules[].conditions.countries	array of string
routing_rules[].conditions.devices	array of string
routing_rules[].conditions.os	array of string
routing_rules[].conditions.languages	array of string
routing_rules[].conditions.time	object
routing_rules[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
routing_rules[].weight	integer	`ab` only.≥ 1, ≤ 100
routing_rules[].enabled	boolean
safetyrequired	object
safety.statusrequired	string	`pending` and `flagged` show the interstitial; `blocked` never redirects.One of: `safe`, `pending`, `flagged`, `blocked`
safety.risk_score	integer \| null	≥ 0, ≤ 100
safety.scanned_at	string \| null	Format: date-time
healthrequired	object
health.statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
health.http_status	integer \| null
health.last_checked_at	string \| null	Format: date-time
clicksrequired	integer	Lifetime clicks from rollups (refreshed within 5 s).
clicks_7d	integer	List responses only. Clicks (clicks and QR scans, like `clicks`) in the last 7 UTC days including today, from `rollup_daily`; today is partial.
clicks_prev_7d	integer	List responses only. Clicks in the 7 UTC days before `clicks_7d`'s window, for the change indicator.
scansrequired	integer
last_event_at	string \| null	Format: date-time
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
created_by	string \| null	Member id, or API key id when created by a key.
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
archived_at	string \| null	Format: date-time

200 response: 200 responseJSON

{
  "id": "lnk_01JB4N8ZK3Q9WXYZ0123456789",
  "object": "link",
  "workspace_id": "ws_01JB4M0A1B2C3D4E5F6G7H8J9K",
  "is_test": false,
  "domain_id": "string",
  "domain": "crop.sh",
  "slug": "diwali",
  "short_url": "https://crop.sh/diwali",
  "destination_url": "https://example.com",
  "title": "string",
  "description": "string",
  "status": "active",
  "utm": {
    "source": "string",
    "medium": "string",
    "campaign": "string",
    "term": "string",
    "content": "string"
  },
  "utm_template_id": "string",
  "password_protected": false,
  "expires_at": "2026-12-05T10:15:30.000Z",
  "expired_redirect_url": "https://example.com",
  "click_limit": 1,
  "og": {
    "title": "string",
    "description": "string",
    "image_url": "https://example.com"
  },
  "append_click_id": false,
  "campaign_id": "string",
  "tag_ids": [
    "string"
  ],
  "pixel_ids": [
    "string"
  ],
  "qr_code_id": "string",
  "landing_kind": "upi_confirm",
  "routing_rules": [
    {
      "id": "rr_01JB4N9A0B1C2D3E4F5G6H7J8K",
      "type": "geo",
      "priority": 0,
      "conditions": {
        "countries": [
          "string"
        ],
        "devices": [
          "mobile"
        ],
        "os": [
          "ios"
        ],
        "languages": [
          "string"
        ],
        "time": {
          "timezone": "string",
          "start": "string",
          "end": "string",
          "days": []
        }
      },
      "destination_url": "https://example.com",
      "weight": 1,
      "enabled": true
    }
  ],
  "safety": {
    "status": "safe",
    "risk_score": 0,
    "scanned_at": "2026-12-05T10:15:30.000Z"
  },
  "health": {
    "status": "healthy",
    "http_status": 0,
    "last_checked_at": "2026-12-05T10:15:30.000Z"
  },
  "clicks": 0,
  "clicks_7d": 0,
  "clicks_prev_7d": 0,
  "scans": 0,
  "last_event_at": "2026-12-05T10:15:30.000Z",
  "metadata": {},
  "created_by": "string",
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z",
  "archived_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Update a link

PATCH/links/{id}

Scope links:write

A new destination_url is re-scanned like a new link (fast path, then a queued deep scan; safety.status restarts). Changing slug needs custom_slugs (Starter+, else 403 feature_not_in_plan) and releases the old slug; on the shared domain a generated code is never reused and a custom slug is held 30 days for other workspaces if the link was live 24 hours or got a click, otherwise freed at once (at most 200 active holds per workspace; none for test-mode links; the same workspace may reclaim it; custom domains have no hold) (409 slug_taken, with details[0].code: held and details[0].available_after while another workspace's 30-day hold runs; 422 slug_invalid / slug_reserved). A link with a live QR code keeps its slug, because the printed code encodes it: changing it answers 409 state_conflict, param: slug. status pauses or resumes; blocked and archived links answer 409 state_conflict. Setting expires_at or password needs link_controls (Starter+, else 403 feature_not_in_plan); null clears them on any plan; resending the current password is no change, and a new one is hashed only after the other checks (at most 2 at once per workspace and 4 per API process, else 429 rate_limited, param: burst, Retry-After: 1); if the stored password changed concurrently before the write, 409 state_conflict (retry). Changing the destination of a link with more than 1,000 events in 30 days needs a fresh session (403 step_up_required). A new destination also updates payload.url of the link's live dynamic url QR code; its render_token is unchanged (the code encodes the short URL). tag_ids replaces the link's tags ([] removes them; an id that is not a live tag of this workspace answers 422 validation_failed, details[].code: unknown_tag). Phase 1 applies destination_url, slug, title, description, status, metadata, expires_at, password, tag_ids; other fields answer 422 validation_failed (details[].code: unsupported_in_phase) unless absent, null or empty. A body that changes nothing writes nothing.

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request body application/json

Field	Type	Description
destination_url	string	Absolute http(s) URL.Format: uri · max length 2048
slug	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
title	string \| null
description	string \| null
status	string	One of: `active`, `paused`
utm	Utm \| null
utm.source	string	max length 200
utm.medium	string	max length 200
utm.campaign	string	max length 200
utm.term	string	max length 200
utm.content	string	max length 200
utm_template_id	string \| null
password	string \| null
expires_at	string \| null	Format: date-time
expired_redirect_url	string \| null	Format: uri
click_limit	integer \| null
og	OpenGraph \| null
og.title	string	max length 120
og.description	string	max length 300
og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
append_click_id	boolean \| null
campaign_id	string \| null
tag_ids	array of string
pixel_ids	array of string
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20

Request body: new destinationJSON

{
  "destination_url": "https://brand.in/diwali-sale-extended",
  "expires_at": "2026-11-20T18:29:59.000Z"
}

Request example

PATCH /links/{id}cURL

curl -X PATCH 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789' \
  -H 'Authorization: Bearer uc_live_…' \
  -H 'Content-Type: application/json' \
  -d '{
  "destination_url": "https://brand.in/diwali-sale-extended",
  "expires_at": "2026-11-20T18:29:59.000Z"
}'

Responses

200 response

Updated

Link schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `link`
workspace_idrequired	string
is_testrequired	boolean
domain_id	string \| null	`null` for the system domain `crop.sh`.
domainrequired	string
slugrequired	string	1–64 chars of `[A-Za-z0-9_-]`; must not start with `@`.
short_urlrequired	string	Test-mode links use `https://test.crop.sh/<slug>`, which never redirects. For the system domain the host follows `Workspace.short_link_host`: while staff run the backup short domain (ops switch `short_host_fallback`) new responses show the backup host (for example `https://go.crop.sh/diwali`). Both hosts redirect the same slug.Format: uri
destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
title	string \| null	max length 200
description	string \| null	max length 1000
statusrequired	string	`blocked` is set by safety; `expired` by `expires_at`/`click_limit`; `archived` by delete.One of: `active`, `paused`, `expired`, `blocked`, `archived`
utm	Utm \| null
utm.source	string	max length 200
utm.medium	string	max length 200
utm.campaign	string	max length 200
utm.term	string	max length 200
utm.content	string	max length 200
utm_template_id	string \| null
password_protectedrequired	boolean	The password itself is write-only.
expires_at	string \| null	Format: date-time
expired_redirect_url	string \| null	Format: uri
click_limit	integer \| null	≥ 1
og	OpenGraph \| null
og.title	string	max length 120
og.description	string	max length 300
og.image_url	string \| null	1200×630 recommended. Upload via `POST /assets` with `purpose: og_image` and use the returned `url`.Format: uri
append_click_id	boolean \| null	`null` inherits the workspace setting.
campaign_id	string \| null
tag_idsrequired	array of string
pixel_ids	array of string	Phase 2 (Pro+).
qr_code_id	string \| null
landing_kind	string \| null	Set on the link of a dynamic UPI (`upi_confirm`) or vCard (`vcard`) QR code: scans open URLCrop's payee confirmation or contact page, so the destination is not a web URL, is never scanned (`safety.scanned_at` stays null) and is changed on the QR code (`PATCH /v1/links/{id}` with `destination_url` → `422 validation_failed`, `details[].code: qr_landing_link`). Null for every other link.One of: `upi_confirm`, `vcard`, `null`
routing_rules	array of RoutingRule	Phase 2; only present with `expand[]=routing_rules`.
routing_rules[].id	string
routing_rules[].typerequired	string	One of: `geo`, `device`, `os`, `language`, `time`, `ab`
routing_rules[].priority	integer	≥ 0
routing_rules[].conditions	object
routing_rules[].conditions.countries	array of string
routing_rules[].conditions.devices	array of string
routing_rules[].conditions.os	array of string
routing_rules[].conditions.languages	array of string
routing_rules[].conditions.time	object
routing_rules[].destination_urlrequired	string	Absolute http(s) URL.Format: uri · max length 2048
routing_rules[].weight	integer	`ab` only.≥ 1, ≤ 100
routing_rules[].enabled	boolean
safetyrequired	object
safety.statusrequired	string	`pending` and `flagged` show the interstitial; `blocked` never redirects.One of: `safe`, `pending`, `flagged`, `blocked`
safety.risk_score	integer \| null	≥ 0, ≤ 100
safety.scanned_at	string \| null	Format: date-time
healthrequired	object
health.statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
health.http_status	integer \| null
health.last_checked_at	string \| null	Format: date-time
clicksrequired	integer	Lifetime clicks from rollups (refreshed within 5 s).
clicks_7d	integer	List responses only. Clicks (clicks and QR scans, like `clicks`) in the last 7 UTC days including today, from `rollup_daily`; today is partial.
clicks_prev_7d	integer	List responses only. Clicks in the 7 UTC days before `clicks_7d`'s window, for the change indicator.
scansrequired	integer
last_event_at	string \| null	Format: date-time
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
created_by	string \| null	Member id, or API key id when created by a key.
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
archived_at	string \| null	Format: date-time

200 response: 200 responseJSON

{
  "id": "lnk_01JB4N8ZK3Q9WXYZ0123456789",
  "object": "link",
  "workspace_id": "ws_01JB4M0A1B2C3D4E5F6G7H8J9K",
  "is_test": false,
  "domain_id": "string",
  "domain": "crop.sh",
  "slug": "diwali",
  "short_url": "https://crop.sh/diwali",
  "destination_url": "https://example.com",
  "title": "string",
  "description": "string",
  "status": "active",
  "utm": {
    "source": "string",
    "medium": "string",
    "campaign": "string",
    "term": "string",
    "content": "string"
  },
  "utm_template_id": "string",
  "password_protected": false,
  "expires_at": "2026-12-05T10:15:30.000Z",
  "expired_redirect_url": "https://example.com",
  "click_limit": 1,
  "og": {
    "title": "string",
    "description": "string",
    "image_url": "https://example.com"
  },
  "append_click_id": false,
  "campaign_id": "string",
  "tag_ids": [
    "string"
  ],
  "pixel_ids": [
    "string"
  ],
  "qr_code_id": "string",
  "landing_kind": "upi_confirm",
  "routing_rules": [
    {
      "id": "rr_01JB4N9A0B1C2D3E4F5G6H7J8K",
      "type": "geo",
      "priority": 0,
      "conditions": {
        "countries": [
          "string"
        ],
        "devices": [
          "mobile"
        ],
        "os": [
          "ios"
        ],
        "languages": [
          "string"
        ],
        "time": {
          "timezone": "string",
          "start": "string",
          "end": "string",
          "days": []
        }
      },
      "destination_url": "https://example.com",
      "weight": 1,
      "enabled": true
    }
  ],
  "safety": {
    "status": "safe",
    "risk_score": 0,
    "scanned_at": "2026-12-05T10:15:30.000Z"
  },
  "health": {
    "status": "healthy",
    "http_status": 0,
    "last_checked_at": "2026-12-05T10:15:30.000Z"
  },
  "clicks": 0,
  "clicks_7d": 0,
  "clicks_prev_7d": 0,
  "scans": 0,
  "last_event_at": "2026-12-05T10:15:30.000Z",
  "metadata": {},
  "created_by": "string",
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z",
  "archived_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

202 response

Waiting for approval: the workspace has approvals on and the caller's role needs review (Editor). Nothing is published until an Owner or Admin approves.

ApprovalRequest schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `approval_request`
resource_typerequired	string	Links at this phase; `qr_code`, `page`, `campaign` follow with those resources.Value: `link`
resource_idrequired	string \| null	The link (`lnk_…`) changed or archived; for `create`, null until applied, then the new link.
actionrequired	string	One of: `create`, `update`, `delete`
payloadrequired	object	The proposed body (`LinkCreate` for `create`, `LinkUpdate` for `update`, `{}` for `delete`), with `password` replaced by `password_set: true`.
statusrequired	string	`pending` until reviewed; `applied` once approved and written; `approved` only while the change is being applied; `expired` 14 days after creation without a decision.One of: `pending`, `approved`, `rejected`, `cancelled`, `applied`, `expired`
requested_byrequired	ApprovalActor
requested_by.namerequired	string \| null
requested_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_byrequired	ApprovalActor \| null
reviewed_by.namerequired	string \| null
reviewed_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_atrequired	string \| null	Format: date-time
review_noterequired	string \| null	Reviewer comment; the reason when rejected.
applied_atrequired	string \| null	Format: date-time
expires_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
is_minerequired	boolean	The signed-in user made the request.
targetrequired	object \| null	Current short URL and destination of the link an `update` or `delete` targets (null for `create`).
target.short_urlrequired	string
target.destination_urlrequired	string
target.statusrequired	string
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time

202 response: 202 responseJSON

{
  "id": "string",
  "object": "approval_request",
  "resource_type": "link",
  "resource_id": "string",
  "action": "create",
  "payload": {},
  "status": "pending",
  "requested_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_at": "2026-12-05T10:15:30.000Z",
  "review_note": "string",
  "applied_at": "2026-12-05T10:15:30.000Z",
  "expires_at": "2026-12-05T10:15:30.000Z",
  "is_mine": false,
  "target": {
    "short_url": "string",
    "destination_url": "string",
    "status": "string"
  },
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Archive a link

DELETE/links/{id}

Scope links:write

The short URL returns 404 immediately; the link is permanently deleted 30 days after archiving, and its shared-domain slug is then held for other workspaces per decision 17. Archiving an archived link is a no-op (204); a blocked link answers 409 state_conflict.

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request example

DELETE /links/{id}cURL

curl -X DELETE 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789' \
  -H 'Authorization: Bearer uc_live_…'

Responses

202 response

Waiting for approval: the workspace has approvals on and the caller's role needs review (Editor). Nothing is published until an Owner or Admin approves.

ApprovalRequest schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `approval_request`
resource_typerequired	string	Links at this phase; `qr_code`, `page`, `campaign` follow with those resources.Value: `link`
resource_idrequired	string \| null	The link (`lnk_…`) changed or archived; for `create`, null until applied, then the new link.
actionrequired	string	One of: `create`, `update`, `delete`
payloadrequired	object	The proposed body (`LinkCreate` for `create`, `LinkUpdate` for `update`, `{}` for `delete`), with `password` replaced by `password_set: true`.
statusrequired	string	`pending` until reviewed; `applied` once approved and written; `approved` only while the change is being applied; `expired` 14 days after creation without a decision.One of: `pending`, `approved`, `rejected`, `cancelled`, `applied`, `expired`
requested_byrequired	ApprovalActor
requested_by.namerequired	string \| null
requested_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_byrequired	ApprovalActor \| null
reviewed_by.namerequired	string \| null
reviewed_by.emailrequired	string \| null	Null when the member has left the workspace.
reviewed_atrequired	string \| null	Format: date-time
review_noterequired	string \| null	Reviewer comment; the reason when rejected.
applied_atrequired	string \| null	Format: date-time
expires_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
is_minerequired	boolean	The signed-in user made the request.
targetrequired	object \| null	Current short URL and destination of the link an `update` or `delete` targets (null for `create`).
target.short_urlrequired	string
target.destination_urlrequired	string
target.statusrequired	string
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time

202 response: 202 responseJSON

{
  "id": "string",
  "object": "approval_request",
  "resource_type": "link",
  "resource_id": "string",
  "action": "create",
  "payload": {},
  "status": "pending",
  "requested_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_by": {
    "name": "string",
    "email": "string"
  },
  "reviewed_at": "2026-12-05T10:15:30.000Z",
  "review_note": "string",
  "applied_at": "2026-12-05T10:15:30.000Z",
  "expires_at": "2026-12-05T10:15:30.000Z",
  "is_mine": false,
  "target": {
    "short_url": "string",
    "destination_url": "string",
    "status": "string"
  },
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

204 response
Deleted or applied. No body.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Stats shortcut for one link

GET/links/{id}/stats

Scope insights:read

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
from	query	string	Start of the period (inclusive). `YYYY-MM-DD` or RFC 3339. Default 30 days ago.
to	query	string	End of the period (inclusive). Default now.
timezone	query	string	IANA timezone for bucketing. Default is the workspace timezone.
include_bots	query	boolean	When `true`, flagged bot events are added into click, scan and view counts (the rollups' `bots` column). Default `false` excludes them. `unique_visitors` never includes bots.

Request example

GET /links/{id}/statscURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/stats' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Stats

StatsSummary schema and example

Field	Type	Description
objectrequired	string	Value: `stats`
subject_id	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
periodrequired	object
period.fromrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
period.torequired	string	ISO 8601 UTC with milliseconds.Format: date-time
period.timezonerequired	string
truncated_to_retention	boolean	True when `period.from` was moved forward to the plan's `analytics_retention_days` window (also sent as `X-URLCrop-Truncated retention`).
totalsrequired	object
totals.clicks	integer
totals.scans	integer
totals.views	integer
totals.unique_visitors	integer	Sum of daily unique visitors over the period ("unique visitors (daily)").
totals.over_quota_events	integer	Events beyond the monthly event quota in the UTC months overlapping the period. Counted, but stored without detail, so they are not in `timeseries`, `top` or the other totals.
totals.conversions	integer	Phase 2.
totals.revenue	Money
totals.revenue.amountrequired	integer	Integer minor units (paise, cents). Never a float.
totals.revenue.currencyrequired	string	ISO 4217 code.One of: `INR`, `USD`
timeseriesrequired	array of object
timeseries[].daterequired	string	Format: date
timeseries[].clicks	integer
timeseries[].scans	integer
timeseries[].views	integer
timeseries[].unique_visitors	integer
toprequired	object
top.countries	array of BreakdownRow
top.countries[].keyrequired	string	Dimension value (ISO country code, device class, referrer host, link id…).
top.countries[].label	string
top.countries[].valuerequired	number
top.countries[].share	number	Fraction of the total (0–1).
top.devices	array of BreakdownRow
top.devices[].keyrequired	string	Dimension value (ISO country code, device class, referrer host, link id…).
top.devices[].label	string
top.devices[].valuerequired	number
top.devices[].share	number	Fraction of the total (0–1).
top.referrers	array of BreakdownRow
top.referrers[].keyrequired	string	Dimension value (ISO country code, device class, referrer host, link id…).
top.referrers[].label	string
top.referrers[].valuerequired	number
top.referrers[].share	number	Fraction of the total (0–1).

200 response: monthJSON

{
  "object": "stats",
  "subject_id": "lnk_01JB4N8ZK3Q9WXYZ0123456789",
  "period": {
    "from": "2026-11-05T00:00:00.000Z",
    "to": "2026-12-05T23:59:59.999Z",
    "timezone": "Asia/Kolkata"
  },
  "totals": {
    "clicks": 8450,
    "scans": 1210,
    "unique_visitors": 7120
  },
  "timeseries": [
    {
      "date": "2026-12-04",
      "clicks": 410,
      "scans": 55
    },
    {
      "date": "2026-12-05",
      "clicks": 388,
      "scans": 61
    }
  ],
  "top": {
    "countries": [
      {
        "key": "IN",
        "label": "India",
        "value": 7890,
        "share": 0.82
      }
    ],
    "devices": [
      {
        "key": "mobile",
        "value": 8300,
        "share": 0.86
      }
    ],
    "referrers": [
      {
        "key": "whatsapp",
        "value": 6100,
        "share": 0.63
      }
    ]
  }
}

304 response
The If-None-Match ETag matches; no body. Sent for cacheable aggregate reads (Cache-Control: private, max-age=30, weak ETag).

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Destination health

GET/links/{id}/health

Scope links:read

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request example

GET /links/{id}/healthcURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/health' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Health

LinkHealth schema and example

Field	Type	Description
link_idrequired	string
statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
http_status	integer \| null
last_checked_at	string \| null	Format: date-time
consecutive_failuresrequired	integer
history	array of object	max items 30
history[].checked_at	string	ISO 8601 UTC with milliseconds.Format: date-time
history[].http_status	integer \| null
history[].latency_ms	integer \| null
history[].error	string \| null

200 response: 200 responseJSON

{
  "link_id": "string",
  "status": "healthy",
  "http_status": 0,
  "last_checked_at": "2026-12-05T10:15:30.000Z",
  "consecutive_failures": 0,
  "history": [
    {
      "checked_at": "2026-12-05T10:15:30.000Z",
      "http_status": 0,
      "latency_ms": 0,
      "error": "string"
    }
  ]
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Queue an immediate health check (10/hour)

POST/links/{id}/health/check

Scope links:write

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.
Idempotency-Key	header	string	Unique string (UUID v4 recommended, ≤ 255 chars). Repeating a POST with the same key and body within 24 hours replays the original response with `Idempotent-Replayed: true`. One-time secrets are never cached: a replay returns them as `null` with `Idempotent-Redacted: secret`.

Request example

POST /links/{id}/health/checkcURL

curl -X POST 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/health/check' \
  -H 'Authorization: Bearer uc_live_…'

Responses

202 response

Queued; poll GET /links/{id}/health

LinkHealth schema and example

Field	Type	Description
link_idrequired	string
statusrequired	string	One of: `healthy`, `unhealthy`, `unknown`
http_status	integer \| null
last_checked_at	string \| null	Format: date-time
consecutive_failuresrequired	integer
history	array of object	max items 30
history[].checked_at	string	ISO 8601 UTC with milliseconds.Format: date-time
history[].http_status	integer \| null
history[].latency_ms	integer \| null
history[].error	string \| null

202 response: 202 responseJSON

{
  "link_id": "string",
  "status": "healthy",
  "http_status": 0,
  "last_checked_at": "2026-12-05T10:15:30.000Z",
  "consecutive_failures": 0,
  "history": [
    {
      "checked_at": "2026-12-05T10:15:30.000Z",
      "http_status": 0,
      "latency_ms": 0,
      "error": "string"
    }
  ]
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

409 response

State conflict (slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use).

Error codes: slug_taken, domain_already_exists, member_already_exists, invitation_pending, idempotency_in_progress, state_conflict, resource_in_use

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

409 response: slug takenJSON

{
  "error": {
    "type": "conflict_error",
    "code": "slug_taken",
    "message": "The slug \"diwali\" is already in use on crop.sh.",
    "param": "slug",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#slug_taken"
  }
}

422 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

422 response: validation failedJSON

{
  "error": {
    "type": "validation_error",
    "code": "validation_failed",
    "message": "The request body is invalid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#validation_failed",
    "details": [
      {
        "path": "destination_url",
        "code": "invalid_string",
        "message": "Must be an absolute http(s) URL"
      }
    ]
  }
}

422 response: destination blockedJSON

{
  "error": {
    "type": "validation_error",
    "code": "destination_blocked",
    "message": "This destination was flagged as unsafe and cannot be shortened.",
    "param": "destination_url",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#destination_blocked"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

Safety scan result and history

GET/links/{id}/safety

Scope links:read

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request example

GET /links/{id}/safetycURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/safety' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Safety

SafetyHistory schema and example

Field	Type	Description
currentrequired	SafetyScan
current.idrequired	string
current.objectrequired	string	Value: `safety_scan`
current.link_id	string
current.statusrequired	string	One of: `safe`, `pending`, `flagged`, `blocked`
current.risk_score	integer \| null
current.sources	array of string	Which checks contributed (`web_risk`, `urlhaus`, `phishtank`, `heuristics`).
current.reasons	array of string
current.scanned_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
historyrequired	array of SafetyScan
history[].idrequired	string
history[].objectrequired	string	Value: `safety_scan`
history[].link_id	string
history[].statusrequired	string	One of: `safe`, `pending`, `flagged`, `blocked`
history[].risk_score	integer \| null
history[].sources	array of string	Which checks contributed (`web_risk`, `urlhaus`, `phishtank`, `heuristics`).
history[].reasons	array of string
history[].scanned_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time

200 response: 200 responseJSON

{
  "current": {
    "id": "scan_01JB4NA1B2C3D4E5F6G7H8J9K0",
    "object": "safety_scan",
    "link_id": "string",
    "status": "safe",
    "risk_score": 0,
    "sources": [
      "string"
    ],
    "reasons": [
      "string"
    ],
    "scanned_at": "2026-12-05T10:15:30.000Z"
  },
  "history": [
    {
      "id": "scan_01JB4NA1B2C3D4E5F6G7H8J9K0",
      "object": "safety_scan",
      "link_id": "string",
      "status": "safe",
      "risk_score": 0,
      "sources": [
        "string"
      ],
      "reasons": [
        "string"
      ],
      "scanned_at": "2026-12-05T10:15:30.000Z"
    }
  ]
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

A link's safety appeals

GET/links/{id}/appeals

Scope links:read

The link's appeals against a safety block, newest first (at most 50). The link's safety history shows them next to the scans. Readable by every role that may view the link's safety; another workspace's link is 404.

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request example

GET /links/{id}/appealscURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/appeals' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

Appeals, newest first

SafetyAppealList schema and example

Field	Type	Description
datarequired	array of SafetyAppeal
data[].objectrequired	string	Value: `safety_appeal`
data[].idrequired	string
data[].workspace_idrequired	string
data[].targetrequired	object
data[].destination_hostrequired	string \| null	The link's current destination host (never the full URL).
data[].textrequired	string	max length 2000
data[].evidence_urlrequired	string \| null
data[].statusrequired	string	`upheld`: the link is `safe` for 30 days; `rejected`: final for that destination.One of: `open`, `upheld`, `rejected`
data[].submitted_atrequired	string	Format: date-time
data[].due_atrequired	string	Decision deadline, 2 business days after filing.Format: date-time
data[].decided_atrequired	string \| null	Format: date-time
data[].decision_reasonrequired	string \| null	Trust & Safety's note on the decision.
paginationrequired	Pagination
pagination.limitrequired	integer
pagination.has_morerequired	boolean
pagination.next_cursorrequired	string \| null	Pass as `cursor` to fetch the next page. `null` on the last page.
pagination.total	integer	Only with `include_total=true`; estimated above 10,000.

200 response: 200 responseJSON

{
  "data": [
    {
      "object": "safety_appeal",
      "id": "apl_01JB4NA1B2C3D4E5F6G7H8J9K0",
      "workspace_id": "string",
      "target": {
        "kind": "link",
        "id": "string"
      },
      "destination_host": "string",
      "text": "string",
      "evidence_url": "string",
      "status": "open",
      "submitted_at": "2026-12-05T10:15:30.000Z",
      "due_at": "2026-12-05T10:15:30.000Z",
      "decided_at": "2026-12-05T10:15:30.000Z",
      "decision_reason": "string"
    }
  ],
  "pagination": {
    "limit": 0,
    "has_more": false,
    "next_cursor": "string",
    "total": 0
  }
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}

The QR code attached to this link

GET/links/{id}/qr-code

Scope qr:read

Parameters

Name	In	Type	Description
idrequired	path	string	Prefixed ULID (`<prefix>_<26 Crockford base32 chars>`).
X-Workspace-Id	header	string	Workspace to act on. Required for session requests on workspace-scoped routes; optional for API keys (must equal the key's workspace, otherwise `403 workspace_mismatch`). For a session, a workspace the user is not an active member of (another tenant, a removed membership, a malformed or unknown id) answers `404 resource_not_found`, never `403`.

Request example

GET /links/{id}/qr-codecURL

curl 'https://api.urlcrop.com/v1/links/lnk_01JB4N8ZK3Q9WXYZ0123456789/qr-code' \
  -H 'Authorization: Bearer uc_live_…'

Responses

200 response

QR code

QrCode schema and example

Field	Type	Description
idrequired	string
objectrequired	string	Value: `qr_code`
workspace_idrequired	string
is_testrequired	boolean
namerequired	string	max length 120
typerequired	string	MVP types. Phase 2 adds `google_review`, `menu`, `app_store`, `sms`, `email` (until then `422 unsupported_qr_type`). `wifi` is static only.One of: `url`, `whatsapp`, `upi`, `vcard`, `wifi`
dynamicrequired	boolean	Dynamic codes encode a short URL and are editable and tracked; static codes encode the payload itself.
link_id	string \| null	The Link a dynamic code points to.
short_url	string \| null	Format: uri
content	string	The exact string encoded in the QR (short URL for dynamic, payload string for static).
payload	QrPayloadUrl \| QrPayloadWhatsapp \| QrPayloadUpi \| QrPayloadVcard \| QrPayloadWifi	Shape depends on `type`.
designrequired	QrDesign	Design, schema version 1. Basic kit (every plan): colours, `module_shape` `square`/`rounded`/`dots`, `eye_shape: square`, `error_correction`. Full kit (`qr_brand_kit = full`, Starter+; else `403 feature_not_in_plan`, `param: qr_brand_kit`): `logo`, `gradient`, `eye_color`, `eye_shape` `rounded`/`circle`/`leaf`, `module_shape: classy`, `frame`. A design that fails the server decode test is saved, but its renders answer `422 qr_unreadable`.
design.foreground_color	string
design.background_color	string
design.gradient	object \| null
design.gradient.type	string	One of: `linear`, `radial`
design.gradient.from	string
design.gradient.to	string
design.gradient.angle	integer
design.module_shape	string	`classy` needs the full kit.One of: `square`, `rounded`, `dots`, `classy`
design.eye_shape	string	Anything other than `square` needs the full kit.One of: `square`, `rounded`, `circle`, `leaf`
design.eye_color	string \| null	Full kit.
design.logo	object \| null
design.logo.asset_id	string	From `POST /assets` with `purpose: qr_logo` (PNG, JPEG or WebP).
design.logo.size_ratio	number	≥ 0.1, ≤ 0.3
design.logo.padding	integer
design.logo.remove_background	boolean
design.logo.url	string	15-minute signed `/v1/files/…` preview of the logo (responses only; ignored on writes).Format: uri
design.frame	object \| null
design.frame.style	string	Frame styles.One of: `none`, `label`, `badge`, `speech`, `card`, `crop_corner`
design.frame.text	string	CTA text, 1–24 characters (presets "Scan me", "Pay here").min length 1, max length 24
design.frame.color	string
design.frame.text_color	string
design.error_correction	string	With a logo the level is raised to at least `Q` (`logo.size_ratio` ≤ 0.2) or `H` (above); a lower requested level is raised, a higher one kept. Responses return the effective level.One of: `L`, `M`, `Q`, `H`
render_tokenrequired	string	Rotates whenever `design` or `payload` changes, so cached renders are never stale.
render_urlsrequired	object \| null	Public, cacheable, unguessable render URLs (`Cache-Control: public, immutable`). `null` for `wifi` codes: their renders contain the network password, are stored encrypted and are served only by the authenticated `/v1/qr-codes/{id}.{png,svg,pdf}` routes with `Cache-Control: private, no-store`.
render_urls.pngrequired	string	Format: uri
render_urls.svgrequired	string	Format: uri
render_urls.pdfrequired	string	Format: uri
campaign_id	string \| null
tag_ids	array of string
scansrequired	integer
last_scanned_at	string \| null	Time of the most recent counted scan (flushed by ingest), or null.Format: date-time
metadata	Metadata	Up to 20 keys (≤ 40 chars) with string values (≤ 500 chars). Stored verbatim.max keys 20
created_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time
updated_atrequired	string	ISO 8601 UTC with milliseconds.Format: date-time

200 response: 200 responseJSON

{
  "id": "qr_01JB4P0Q1R2S3T4U5V6W7X8Y9Z",
  "object": "qr_code",
  "workspace_id": "ws_01JB4M0A1B2C3D4E5F6G7H8J9K",
  "is_test": false,
  "name": "string",
  "type": "url",
  "dynamic": false,
  "link_id": "string",
  "short_url": "https://example.com",
  "content": "string",
  "payload": {
    "url": "https://example.com"
  },
  "design": {
    "foreground_color": "#000000",
    "background_color": "#FFFFFF",
    "gradient": {
      "type": "linear",
      "from": "string",
      "to": "string",
      "angle": 0
    },
    "module_shape": "square",
    "eye_shape": "square",
    "eye_color": "string",
    "logo": {
      "asset_id": "string",
      "size_ratio": 0.2,
      "padding": 2,
      "remove_background": true,
      "url": "https://example.com"
    },
    "frame": {
      "style": "none",
      "text": "Scan me",
      "color": "string",
      "text_color": "string"
    },
    "error_correction": "M"
  },
  "render_token": "qrt_01JB4Q0R1S2T3U4V5W6X7Y8Z9A",
  "render_urls": {
    "png": "https://api.urlcrop.com/v1/public/qr/qrt_01JB4Q0R1S2T3U4V5W6X7Y8Z9A.png?size=1024",
    "svg": "https://example.com",
    "pdf": "https://example.com"
  },
  "campaign_id": "string",
  "tag_ids": [
    "string"
  ],
  "scans": 0,
  "last_scanned_at": "2026-12-05T10:15:30.000Z",
  "metadata": {},
  "created_at": "2026-12-05T10:15:30.000Z",
  "updated_at": "2026-12-05T10:15:30.000Z"
}

Example generated from the schema.

400 response

Error codes: invalid_json, invalid_query, missing_header, invalid_cursor, invalid_sort, invalid_expand

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

400 response: missing headerJSON

{
  "error": {
    "type": "invalid_request_error",
    "code": "missing_header",
    "message": "The X-Workspace-Id header is required for session requests.",
    "param": "X-Workspace-Id",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#missing_header"
  }
}

401 response

Error codes: unauthenticated

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

401 response: unauthenticatedJSON

{
  "error": {
    "type": "authentication_error",
    "code": "unauthenticated",
    "message": "The API key is not valid.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#unauthenticated",
    "details": [
      {
        "path": "Authorization",
        "code": "invalid_api_key",
        "message": "No key matches this secret"
      }
    ]
  }
}

403 response

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

403 response: plan limit reachedJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "plan_limit_reached",
    "message": "You have created 2,000 of 2,000 links this billing period. Upgrade or buy a pack to continue.",
    "param": "links_per_month",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "plan_limit_reached",
        "message": "Monthly link quota reached",
        "limit": 2000,
        "used": 2000,
        "resets_at": "2026-12-01T00:00:00.000Z",
        "upgrade_to": "business"
      }
    ]
  }
}

403 response: feature not in planJSON

{
  "error": {
    "type": "plan_limit_error",
    "code": "feature_not_in_plan",
    "message": "The public API is available on the Pro plan and above.",
    "param": "api_requests_per_day",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/pricing",
    "details": [
      {
        "code": "feature_not_in_plan",
        "message": "Upgrade to Pro",
        "upgrade_to": "pro"
      }
    ]
  }
}

403 response: email verification requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "email_verification_required",
    "message": "Verify your email address to create links.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#email_verification_required"
  }
}

403 response: step up requiredJSON

{
  "error": {
    "type": "permission_error",
    "code": "step_up_required",
    "message": "Confirm your password or 2FA code to continue.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#step_up_required"
  }
}

404 response

Unknown id, or the resource belongs to another workspace (never distinguished). Also returned when a session's X-Workspace-Id names a workspace the user is not an active member of.

Error codes: resource_not_found

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

404 response: not foundJSON

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "No link with id lnk_01JB4N8ZK3Q9WXYZ0123456789.",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/errors#resource_not_found"
  }
}

429 response

Burst limit, daily plan quota or endpoint limit exceeded.

Error codes: rate_limited

Error schema and example

Field	Type	Description
errorrequired	object
error.typerequired	string	One of: `invalid_request_error`, `authentication_error`, `permission_error`, `plan_limit_error`, `not_found_error`, `conflict_error`, `validation_error`, `rate_limit_error`, `api_error`
error.coderequired	string	Complete error-code catalogue. `@urlcrop/shared/errors` is tested against this list. `param` on plan_limit_error responses is always a plan limit key.One of: `invalid_json`, `invalid_query`, `missing_header`, `invalid_cursor`, `invalid_sort`, `invalid_expand`, `unauthenticated`, `two_factor_required`, `step_up_required`, `email_verification_required`, `signups_paused`, `insufficient_scope`, `insufficient_role`, `workspace_mismatch`, `wrong_environment`, `workspace_suspended`, `write_blocked_past_due`, `content_policy_hold`, `origin_not_allowed`, `turnstile_failed`, `second_approver_required`, `view_as_read_only`, `support_access_approval_required`, `feature_not_in_plan`, `plan_limit_reached`, `resource_not_found`, `route_not_found`, `slug_taken`, `domain_already_exists`, `member_already_exists`, `invitation_pending`, `idempotency_in_progress`, `state_conflict`, `resource_in_use`, `payload_too_large`, `unsupported_media_type`, `validation_failed`, `destination_invalid`, `destination_blocked`, `destination_unreachable`, `slug_invalid`, `slug_reserved`, `domain_not_active`, `domain_proxied`, `idempotency_key_reused`, `unsupported_qr_type`, `qr_unreadable`, `invalid_routing_rule`, `invalid_currency`, `csv_invalid`, `attribution_key_missing`, `policy_acceptance_required`, `rate_limited`, `internal_error`, `upstream_unavailable`, `service_unavailable`, `timeout`
error.messagerequired	string	Human-readable, safe to show to end users.
error.param	string	Field, header or scope the error refers to, when applicable.
error.request_idrequired	string
error.doc_urlrequired	string	Format: uri
error.details	array of object
error.details[].path	string
error.details[].coderequired	string	Zod issue code, `unsupported_in_phase`, a destination safety reason, or a 401 reason.
error.details[].messagerequired	string
error.details[].limit	integer \| null	Plan limit in force (plan_limit_error only; null = unlimited).
error.details[].used	integer	Current usage (plan_limit_error only).
error.details[].resets_at	string	When a periodic limit resets (plan_limit_error only).Format: date-time
error.details[].upgrade_to	string	Plan slug that lifts a plan limit (plan_limit_error only).

429 response: rate limitedJSON

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Daily API quota of 50,000 requests exhausted. Resets at 00:00 UTC.",
    "param": "daily_quota",
    "request_id": "req_01JB4N8ZK3Q9WXYZ0123456789",
    "doc_url": "https://urlcrop.com/docs/api/rate-limits"
  }
}