Add a Stripe Connect return domain

Allow a host as the return_url destination of Stripe Connect authorizations started by your account. - domain is the bare lower-cased host (422 subcode invalid_return_domain). - Returns 201 without Location; a duplicate returns 409 connect_return_domain_already_exists. - Needs a live key from an owner or admin.

Authorization

AuthorizationBearer <token>

Your API key as a bearer token: fact_live_… in production, fact_test_… in sandbox. See the authentication guide.

In: header

Path Parameters

account*string

Public identifier (UUID v7) of your account. Get it from GET /v1/me (data.account.id).

Formatuuid

Headers

Idempotency-Key?string

Client-generated opaque key (up to 255 characters; UUID v7 recommended) that makes retries safe: the first response is cached and replayed for repeats without re-executing the mutation. Reusing a key with a different body returns 422 idempotency_key_reused; the values of secret fields (password, secret…) count as part of the body, so retrying with a corrected secret under the same key is a different request, never the replay of the earlier answer. See the Idempotency guide.

Length1 <= length <= 255

Factuarea-Version?string

Pin the API version (YYYY-MM-DD, Stripe-style date versioning) for this request; omit to use the key's pinned version, or the latest if none. Unsupported version → 400 unsupported_api_version; malformed → 400 parameter_invalid_format. The effective version is echoed in the Factuarea-Version response header. See the Versioning guide.

Formatdate

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

domain*string

Host that may be used in the return_url of an authorization, for example app.example.com (up to 253 characters). Host only: no scheme, no port, no path and no wildcard. It is normalized to lower case, so App.Example.com and app.example.com are the same domain.

Lengthlength <= 253

Response Body

`application/json`

Request example

const apiKey = process.env.FACTUAREA_API_KEY;if (!apiKey) throw new Error("Set FACTUAREA_API_KEY");const response = await fetch("https://api.factuarea.com/v1/accounts/01931b3e-7c4a-7f2e-9a8b-3c5d6e7f8a01/connected-accounts/return-domains", {  method: "POST",  headers: { Authorization: `Bearer ${apiKey}`, ...{"Accept":"application/json","Content-Type":"application/json","Idempotency-Key":"erp-2026-public-api-v1-account-connect_return_domains-create"} },  body: JSON.stringify({  "domain": "app.midominio.com"}),});if (!response.ok) throw new Error(await response.text());if (response.status !== 204) console.log(await response.json());

Response example

{
  "data": {
    "id": "01993c4f-52b8-7c16-a3d9-4e7b1f2c8a30",
    "object": "connect_return_domain",
    "domain": "portal.example.com",
    "created_at": "2026-10-05T10:15:00+00:00"
  }
}

Retired X-Active-Profile header sent

{
  "error": {
    "type": "invalid_request_error",
    "code": "parameter_unknown",
    "subcode": "retired_active_profile_header",
    "message": "La cabecera 'X-Active-Profile' fue retirada de la API v1: la empresa efectiva se indica en el segmento de empresa de la ruta.",
    "param": "X-Active-Profile",
    "doc_url": "https://docs.factuarea.com/guides/errors#parameter_unknown",
    "request_id": "req_01J8Y3M2Q40000000000000001"
  }
}

Malformed Factuarea-Version header

{
  "error": {
    "type": "invalid_request_error",
    "code": "parameter_invalid_format",
    "message": "El header 'Factuarea-Version' debe tener formato YYYY-MM-DD.",
    "param": "Factuarea-Version",
    "doc_url": "https://docs.factuarea.com/guides/errors#parameter_invalid_format",
    "request_id": "req_01J8Y3M2Q40000000000000002"
  }
}

Unsupported Factuarea-Version

{
  "error": {
    "type": "invalid_request_error",
    "code": "unsupported_api_version",
    "message": "La versión de API '2020-01-01' no está soportada.",
    "param": "Factuarea-Version",
    "doc_url": "https://docs.factuarea.com/guides/errors#unsupported_api_version",
    "request_id": "req_01J8Y3M2Q40000000000000003"
  }
}

Missing API key

{
  "error": {
    "type": "authentication_error",
    "code": "missing_api_key",
    "message": "No se ha proporcionado una API key válida en el header Authorization.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#missing_api_key",
    "request_id": "req_01HKQS5N8VR7QXJ9K3T6BWPMZA"
  }
}

Invalid API key format

{
  "error": {
    "type": "authentication_error",
    "code": "invalid_api_key",
    "message": "La API key no tiene el formato esperado (debe empezar por fact_live_ o fact_test_).",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#invalid_api_key",
    "request_id": "req_01HKQS5N9JTQM7HVTQP3FBN5XB"
  }
}

Revoked API key

{
  "error": {
    "type": "authentication_error",
    "code": "api_key_revoked",
    "message": "Esta API key ha sido revocada y ya no es válida.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#api_key_revoked",
    "request_id": "req_01HKQS5NA8K7E2V9YDZWMT6RJC"
  }
}

Expired API key

{
  "error": {
    "type": "authentication_error",
    "code": "api_key_expired",
    "message": "Esta API key ha caducado.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#api_key_expired",
    "request_id": "req_01HKQS5NAPIKEYEXPIRED00008"
  }
}

Request IP outside the API key allowlist

{
  "error": {
    "type": "authentication_error",
    "code": "ip_not_allowed",
    "message": "La IP 203.0.113.10 no está autorizada para esta API key.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#ip_not_allowed",
    "request_id": "req_01HKQS5NIPNOTALLOWED000009"
  }
}

API key lacks required scope

{
  "error": {
    "type": "authorization_error",
    "code": "insufficient_scope",
    "message": "Esta API key no tiene el scope requerido para esta operación.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#insufficient_scope",
    "request_id": "req_01HKQS5NBC3P8M1KX4V7SLNHQD"
  }
}

Plan upgrade required

{
  "error": {
    "type": "authorization_error",
    "code": "feature_not_available_in_plan",
    "message": "Esta funcionalidad requiere el plan empresario o superior. Actualiza tu suscripción para acceder.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#feature_not_available_in_plan",
    "request_id": "req_01HKQS5NCK4V9N2L7Y8X3WPMRE"
  }
}

Plan without public API access

{
  "error": {
    "type": "authorization_error",
    "code": "addon_not_active",
    "message": "Tu plan actual no incluye acceso a la API pública. Contrata o renueva un plan de Factuarea para usar la API.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#addon_not_active",
    "request_id": "req_01HKQS5NDP5W0Q3M8Z9A4BVSNF"
  }
}

Module not available with a test key

{
  "error": {
    "type": "authorization_error",
    "code": "module_not_available_in_sandbox",
    "message": "El módulo \"verifactu\" no está disponible en modo de pruebas. Usa una clave fact_live_ para operar sobre este recurso.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#module_not_available_in_sandbox",
    "request_id": "req_01HKQS5NMODULESANDBOX00010"
  }
}

Account provider privilege not granted

{
  "error": {
    "type": "authorization_error",
    "code": "privileged_scope_required",
    "message": "Esta operación exige el privilegio de proveedor de cuentas (accounts:*) y la persona que emitió la clave debe ser propietaria o administradora de la cuenta",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#privileged_scope_required",
    "request_id": "req_01HKQS5NPRIVILEGEDSCOPE001"
  }
}

Operation of the owning account on a tax ID reached through a relation

{
  "error": {
    "type": "authorization_error",
    "code": "forbidden_action",
    "message": "Esta operación solo la puede hacer la cuenta dueña del NIF: con un acceso por relación entre cuentas no está disponible.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#forbidden_action",
    "request_id": "req_01HKQS5NRELATIONNIFOWNER01"
  }
}

Section withdrawn from the person who issued the key

{
  "error": {
    "type": "authorization_error",
    "code": "emitter_capability_restricted",
    "message": "El acceso a la sección «invoices» está restringido para la persona emisora de esta credencial en esta empresa. Pide al administrador de la empresa que lo habilite.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#emitter_capability_restricted",
    "request_id": "req_01J8Y3M2Q40000000000000012"
  }
}

Test key on a write that changes a live account

{
  "error": {
    "type": "authorization_error",
    "code": "live_credential_required",
    "message": "Esta operación modifica la cuenta y exige una clave de producción (fact_live_)",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#live_credential_required",
    "request_id": "req_01J8Y3M2Q40000000000000010"
  }
}

Write with read-only access to the company

{
  "error": {
    "type": "authorization_error",
    "code": "company_read_only",
    "message": "Tu acceso a esta empresa es de solo lectura.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#company_read_only",
    "request_id": "req_01J8Y3M2Q40000000000000011"
  }
}

Resource not found

{
  "error": {
    "type": "not_found_error",
    "code": "resource_not_found",
    "message": "El recurso solicitado no existe o pertenece a otra empresa.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#resource_not_found",
    "request_id": "req_01HKQS5NEQ6X1R4N9B0C5DWTPG"
  }
}

Account not found or not the account of the API key

{
  "error": {
    "type": "not_found_error",
    "code": "account_not_found",
    "message": "La cuenta indicada no existe o no es la de tu credencial.",
    "param": "account",
    "doc_url": "https://docs.factuarea.com/guides/errors#account_not_found",
    "request_id": "req_01J8Y3M2Q40000000000000006"
  }
}

{
  "error": {
    "type": "conflict_error",
    "code": "connect_return_domain_already_exists",
    "message": "Ese dominio de retorno ya está dado de alta en la cuenta",
    "param": "domain",
    "doc_url": "https://docs.factuarea.com/guides/errors#connect_return_domain_already_exists",
    "request_id": "req_01J8Y3M2Q4CF0000000000CRD1"
  }
}

POST /v1/accounts/{account}/connected-accounts/return-domains · 422 connect_return_domain_limit_reached

{
  "error": {
    "type": "invalid_request_error",
    "code": "connect_return_domain_limit_reached",
    "message": "La cuenta ha alcanzado el máximo de 20 dominios de retorno",
    "doc_url": "https://docs.factuarea.com/guides/errors#connect_return_domain_limit_reached",
    "request_id": "req_8f3a6c1d9e2b47a05c8f3d6a14"
  }
}

POST /v1/accounts/{account}/connected-accounts/return-domains · 422 invalid_return_domain

{
  "error": {
    "type": "invalid_request_error",
    "code": "business_rule_violation",
    "subcode": "invalid_return_domain",
    "message": "El dominio de retorno no es un nombre de host válido: escribe solo el host, sin https://, ruta ni puerto",
    "param": "domain",
    "doc_url": "https://docs.factuarea.com/guides/errors#business_rule_violation",
    "request_id": "req_4c9e1a7d3f6b82c05a4e9d1b78"
  }
}

Idempotency key reused with a different payload

{
  "error": {
    "type": "idempotency_error",
    "code": "idempotency_key_reused",
    "message": "La Idempotency-Key 'order-2026-0001' ya se usó con un payload distinto.",
    "param": "Idempotency-Key",
    "doc_url": "https://docs.factuarea.com/guides/errors#idempotency_key_reused",
    "request_id": "req_01J8Y3M2Q40000000000000007"
  }
}

Invalid Idempotency-Key format

{
  "error": {
    "type": "invalid_request_error",
    "code": "invalid_param_format",
    "message": "La Idempotency-Key debe tener entre 1 y 255 caracteres ASCII printable.",
    "param": "Idempotency-Key",
    "doc_url": "https://docs.factuarea.com/guides/errors#invalid_param_format",
    "request_id": "req_01J8Y3M2Q40000000000000008"
  }
}

Rate limit exceeded

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limit_exceeded",
    "message": "Has excedido el rate limit de 60 peticiones por minuto. Reintenta tras 30 segundos.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#rate_limit_exceeded",
    "request_id": "req_01HKQS5NKW1C6W9T4G5H0JBZVL"
  }
}

Too many authentication failures (temporary lockout)

{
  "error": {
    "type": "authentication_error",
    "code": "too_many_auth_failures",
    "message": "Has alcanzado el número máximo de intentos de autenticación fallidos. La API key queda bloqueada temporalmente. Reintenta tras el tiempo indicado en `Retry-After`.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#too_many_auth_failures",
    "request_id": "req_01HKQS5NKW1C6W9T4G5H0JBZVM"
  }
}

Too many concurrent uploads in flight

{
  "error": {
    "type": "rate_limit_error",
    "code": "upload_in_flight_budget_exceeded",
    "message": "Tu empresa tiene demasiadas subidas en curso a la vez: este archivo ocupa 10 MB y el margen simultáneo es de 120 MB. Espera a que terminen las subidas en marcha y vuelve a intentarlo dentro de 45 segundos.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#upload_in_flight_budget_exceeded",
    "request_id": "req_01HKQS5NUPLOADINFLIGHT005"
  }
}

Company-wide rate limit exceeded (all keys combined)

{
  "error": {
    "type": "rate_limit_error",
    "code": "company_rate_limit_exceeded",
    "message": "Tu empresa ha superado su límite conjunto de 900 peticiones por minuto, contando a la vez todas sus credenciales. Es un techo de la empresa, así que repartir el tráfico no lo eleva. Reintenta en 12 segundos, o solicita una ampliación de plan si necesitas más capacidad.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#company_rate_limit_exceeded",
    "request_id": "req_01HKQS5NCOMPANYRATELIMIT06"
  }
}

Company-wide monthly quota exhausted (all keys combined)

{
  "error": {
    "type": "rate_limit_error",
    "code": "company_monthly_quota_exceeded",
    "message": "Tu empresa ha agotado su cuota conjunta de 150000 peticiones de este mes, contando a la vez todas sus credenciales. Es un techo de la empresa, así que repartir el tráfico no lo eleva. El contador se reinicia el día 1 del mes siguiente; solicita una ampliación de plan si necesitas más volumen antes.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#company_monthly_quota_exceeded",
    "request_id": "req_01HKQS5NCOMPANYMONTHLY0007"
  }
}

Monthly quota of the API key exhausted

{
  "error": {
    "type": "rate_limit_error",
    "code": "monthly_quota_exceeded",
    "message": "Has agotado tu cuota mensual de 100000 requests. Mejora tu plan para obtener una cuota superior.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#monthly_quota_exceeded",
    "request_id": "req_01HKQS5NMONTHLYQUOTA000011"
  }
}

Portfolio rate limit exceeded (all tax IDs of the account combined)

{
  "error": {
    "type": "rate_limit_error",
    "code": "portfolio_rate_limit_exceeded",
    "message": "La cartera de tu cuenta ha superado su límite conjunto de 1800 peticiones por minuto, contando a la vez todos sus NIF. Es un techo de la cartera, así que repartir el tráfico entre NIF no lo eleva. Reintenta en 12 segundos, o solicita una ampliación de plan si necesitas más capacidad.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#portfolio_rate_limit_exceeded",
    "request_id": "req_01HKQS5NPORTFOLIORATE00012"
  }
}

Portfolio monthly quota exhausted (all tax IDs of the account combined)

{
  "error": {
    "type": "rate_limit_error",
    "code": "portfolio_monthly_quota_exceeded",
    "message": "La cartera de tu cuenta ha agotado su cuota conjunta de 300000 peticiones de este mes, contando a la vez todos sus NIF. Es un techo de la cartera, así que repartir el tráfico entre NIF no lo eleva. El contador se reinicia el día 1 del mes siguiente; solicita una ampliación de plan si necesitas más volumen antes.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#portfolio_monthly_quota_exceeded",
    "request_id": "req_01HKQS5NPORTFOLIOMONTH0013"
  }
}

{
  "error": {
    "type": "api_error",
    "code": "internal_error",
    "message": "Ha ocurrido un error inesperado. Si persiste, contacta con soporte adjuntando el request_id.",
    "param": null,
    "doc_url": "https://docs.factuarea.com/guides/errors#internal_error",
    "request_id": "req_01HKQS5NLX2D7X0U5H6J1KCAWM"
  }
}

Add a Stripe Connect return domain

Authorization

Path Parameters

Headers

Request Body

Response Body

201application/json

400application/json

401application/json

403application/json

404application/json

409application/json

422application/json

429application/json

500application/json

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`

`application/json`