Griffin Payments API

A payment captures the intent to move funds from a bank account to another bank account. Outbound payments can be made from your [bank account](#tag/Bank-accounts) to a [payee](#tag/Payees). Griffin accepts inbound payments to your bank accounts on your behalf. If it's your first time using our payments API, check out our guide for [sending payments](/docs/guides/sending-payments)

OpenAPI Specification

griffin-payments-api-openapi.yml Raw ↑
swagger: '2.0'
info:
  title: The Griffin API keys Payments API
  version: ''
  description: "## Introduction\n\nThe Griffin API is based on [REST](https://en.wikipedia.org/wiki/Representational_state_transfer).\nIt has resource-oriented URLs, accepts [JSON](https://www.json.org/json-en.html)-encoded request bodies, returns [JSON](https://www.json.org/json-en.html)-encoded responses, and uses standard HTTP response verbs and response codes.\n\nOur API deviates from strict RESTful principles if it makes sense to do so, such as when we enforce tighter access controls around certain operations.\nFor example, when closing a bank account: rather than send a PATCH request to the [bank account](#tag/Bank-accounts) resource to update it's status to `\"closed\"`, we provide a dedicated account closure resource.\n\nAnyone can [create an account](https://app.griffin.com/register) with Griffin and try out our API in [sandbox mode](/docs/guides/sandbox-vs-live-mode).\n\nNew to Griffin? Check out our [getting started guide](/docs/guides/get-started-with-the-api).\n\n## Navigation\n\nOur API is designed to be navigated programmatically. When you request any resource, you will find the URLs for related resources in the response body.\n\nThe API is structured as a tree with your [organization](#tag/Organizations) at the top. Everything that you own will be a sub-resource of your organization.\n\nTo bootstrap the navigation process, request the [index](#tag/Navigation/paths/~1v0~1index/get) endpoint: the response will contain your `organization-url`.\n\nFor a walkthrough, see our [getting started guide](/docs/guides/get-started-with-the-api).\n\n## Pagination\n\nOur list APIs support pagination (e.g. [list bank accounts](#tag/Bank-accounts/paths/~1v0~1organizations~1%7Borganization-id%7D~1bank~1accounts/get) and [list payments](#tag/Payments/paths/~1v0~1bank~1accounts~1%7Bbank-account-id%7D~1payments/get)).\nBy default, a list API returns up to 25 results. If there are more results available, the response payload will include links to the previous/next pages.\n\n### Change page size\n\nYou can request a different number of results (between 1 and 200, inclusive) by using the `page[size]` query parameter:\n\n```\nGET /v0/organizations/:id/bank/accounts?page[size]=100\n```\n\n### Navigating between pages\n\nList responses will include a `links` object with `prev` and `next` attributes, as shown below.\nPerform a GET request to the value of the attribute to fetch the previous/next page of results.\n\n```\n{\n  \"accounts\": [\n    // ...\n  ],\n  \"links\": {\n    \"prev\": \"/v0/organizations/og.IG9yZ2FuaXphdGlvbi1pZA/bank/accounts?page[before]=djE6WxSPxfYUTnCU9XtWzj9gGA\",\n    \"next\": \"/v0/organizations/og.IG9yZ2FuaXphdGlvbi1pZA/bank/accounts?page[after]=djE6aw79PXZySUOL16LD8HRJ3A\"\n  }\n}\n\n```\nIf there is no previous or next page available, the value of the attribute will be  null.\n\nAny other query parameters included in the initial request will also be included in the response payload's links.\nIf you want to change parameters (see [filtering and sorting](#section/Filtering-and-sorting)), request the first page and follow the links from there.\n\n## Filtering and sorting\n\n### Sort results\n\nBy default, resources will be listed in descending order, usually based on the `created-at` attribute.\nYou can change the sorting behaviour of a list of results by using the `sort` query parameter.\n\nFor example, to list bank accounts in ascending order (oldest first):\n\n```\nGET /v0/organizations/:id/bank/accounts?sort=created-at\n```\n\nTo _explicitly_ sort in descending order (newest first), prefix the sort attribute with `-`:\n\n```\nGET /v0/organizations/:id/bank/accounts?sort=-created-at\n```\n\n### Filter results\n\nSome list APIs allow you to filter the results.\nFilters are expressed as nested data structures encoded into query parameters.\nFor example, you can list bank accounts that are in either the `opening` or `open` state with:\n\n```\nGET /v0/organizations/:id/bank/accounts?filter[account-status][in][]=opening&filter[account-status][in][]=open\n```\n\nSimilarly, you can list legal persons with a specific `application-status`:\n\n```\nGET /v0/organizations/:id/legal-persons?filter[application-status][eq]=accepted\n```\n\n### Include resources\n\nSome list APIs allow you to include associated resources in the response, reducing the number of requests needed to fetch related data.\nFor instance, when listing bank accounts, you can include each bank account's beneficiary legal person by using the `include` query parameter:\n\n```\nGET /v0/organizations/:id/bank/accounts?include=beneficiary\n```\n\nThe response returns the usual list of bank accounts, but it will also have an `included` object with a `legal-persons` attribute:\n\n```\n{\n  \"accounts\": [\n    // ...\n  ],\n  \"links\": {\n    // ...\n  }\n  \"included\": {\n    \"legal-persons\": [\n      // ...\n    ]\n  }\n}\n```\n\nCheck the documentation for each list API to see all options for sorting and filtering\n\n## Request limits\n\nEach organization is allowed up to 50 concurrent (in-flight) API requests. Exceeding this threshold results in a 429 - Too Many Requests response. Upon receiving a 429 response, you should implement a backoff strategy, pausing to allow your outstanding requests to complete before attempting new requests. To manage your request rate effectively and avoid surpassing this limit, consider using a controlled approach such as a finite pool of threads or workers.\n\n## Versioning\n\nThe Griffin API is versioned via a prefix in the URL.\nThe current version is v0.\nAn example endpoint is: https://api.griffin.com/v0/index.\n\nWe will not break your integration with a particular version for as long as we support that version.\nIf we release a new version, you will have 12 months to upgrade to it."
host: api.griffin.com
basePath: /
schemes:
- https
consumes:
- application/json
produces:
- application/json
security:
- api-key-auth: []
tags:
- name: Payments
  description: "A payment captures the intent to move funds from a bank account to another bank account. Outbound payments can be made from your [bank account](#tag/Bank-accounts) to a [payee](#tag/Payees). Griffin accepts inbound payments to your bank accounts on your behalf. \n If it's your first time using our payments API, check out our guide for [sending payments](/docs/guides/sending-payments)"
paths:
  /v0/admissions/{admission-id}:
    get:
      tags:
      - Payments
      description: Yields an admission.
      parameters:
      - type: string
        required: true
        name: admission-id
        in: path
      responses:
        '200':
          schema:
            type: object
            properties:
              admission-status:
                title: admission-status
                enum:
                - cancelled
                - processing
                - returned
                - delivered
                type: string
                description: Specifies the progress of the inbound payment.
              admission-scheme-information:
                type: object
                properties: {}
                required:
                - payment-scheme
                title: admission-scheme-information
                x-anyOf:
                - type: object
                  properties:
                    end-to-end-identification:
                      title: end-to-end-identification
                      type: string
                      minLength: 1
                      x-allOf:
                      - title: non-empty-string
                        type: string
                        minLength: 1
                      - {}
                      description: An identifier for a payment, assigned by the originator, passed along unchanged throughout the entire end-to-end chain. Not necessarily unique.
                    payment-scheme:
                      enum:
                      - fps
                      type: string
                  required:
                  - end-to-end-identification
                  - payment-scheme
                  title: fps
                - type: object
                  properties:
                    end-to-end-identification:
                      title: end-to-end-identification
                      type: string
                      minLength: 1
                      x-allOf:
                      - title: non-empty-string
                        type: string
                        minLength: 1
                      - {}
                      description: An identifier for a payment, assigned by the originator, passed along unchanged throughout the entire end-to-end chain. Not necessarily unique.
                    payment-scheme:
                      enum:
                      - book-transfer
                      type: string
                  required:
                  - end-to-end-identification
                  - payment-scheme
                  title: book-transfer
                - type: object
                  properties:
                    payment-scheme:
                      enum:
                      - chaps
                      type: string
                  title: chaps
                  required:
                  - payment-scheme
                - type: object
                  properties:
                    payment-scheme:
                      enum:
                      - bacs
                      type: string
                  title: bacs
                  required:
                  - payment-scheme
              payment-url:
                type: string
                title: payment-url
                example: /v0/payments/pm.ICAgICAgcGF5bWVudC1pZA
                description: Link to the payment resource.
              created-at:
                title: created-at
                format: date-time
                type: string
                description: ISO 8601 formatted date-time.
              admission-url:
                type: string
                title: admission-url
                example: /v0/admissions/pa.ICAgIGFkbWlzc2lvbi1pZA
              unique-scheme-identifier:
                type: string
                title: unique-scheme-identifier
                maxLength: 140
                example: 'PGIT2IS7AJG77D2HK23020240212826NatWes     '
                minLength: 1
              account-url:
                type: string
                x-allOf:
                - type: string
                - {}
                - type: object
                  properties:
                    bank-account-id:
                      type: string
                      format: ''
                      title: bank-account-id
                      required: true
                      name: bank-account-id
                  required:
                  - bank-account-id
                x-anyOf:
                - type: string
                  x-allOf:
                  - type: string
                  - {}
                  - type: object
                    properties:
                      bank-account-id:
                        type: string
                        format: ''
                        title: bank-account-id
                        required: true
                        name: bank-account-id
                    required:
                    - bank-account-id
                - type: string
                  x-allOf:
                  - type: string
                  - {}
                  - type: object
                    properties:
                      bank-account-id:
                        type: string
                        format: ''
                        title: bank-account-id
                        required: true
                        name: bank-account-id
                    required:
                    - bank-account-id
                title: account-url
                example: /v0/bank/accounts/ba.IGJhbmstYWNjb3VudC1pZA
                description: Link to the bank account resource.
              original-unique-scheme-identifier:
                type: string
                title: original-unique-scheme-identifier
                maxLength: 140
                example: 'PGIT2IS7AJG77D2HK23020240212826NatWes     '
                minLength: 1
            required:
            - admission-status
            - admission-scheme-information
            - payment-url
            - created-at
            - admission-url
            - unique-scheme-identifier
            - account-url
            title: admission
          description: ''
        '400':
          description: ''
        '401':
          description: Requires an API key to continue
          headers:
            www-authenticate:
              type: string
              description: Returns `GriffinSession` if no valid authentication is found.
        '403':
          description: ''
        '404':
          description: ''
      summary: Get payment admission
  /v0/bank/accounts/{bank-account-id}/admissions:
    get:
      tags:
      - Payments
      description: Lists admissions targeting a bank account
      parameters:
      - in: query
        name: sort
        description: ''
        type: string
        required: false
        enum:
        - -created-at
        - created-at
      - x-allOf:
        - type: integer
          format: int64
        - minimum: 1
          maximum: 201
        maximum: 200
        minimum: 1
        name: page[size]
        required: false
        type: integer
        description: ''
        format: int64
        in: query
      - in: query
        name: page[before]
        description: A base64 encoded opaque string returned in paginated responses.
        type: string
        required: false
        format: byte
      - in: query
        name: page[after]
        description: A base64 encoded opaque string returned in paginated responses.
        type: string
        required: false
        format: byte
      - in: query
        name: filter[created-at][lte]
        description: Return only resources with a created-at less than or equal to the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][lt]
        description: Return only resources with a created-at less than the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][gte]
        description: Return only resources with a created-at greater than or equal to the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][gt]
        description: Return only resources with a created-at greater than the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[admission-status][in][]
        description: ''
        type: array
        required: false
        x-allOf:
        - {}
        - {}
        items:
          enum:
          - cancelled
          - processing
          - returned
          - delivered
          type: string
      - type: string
        required: true
        name: bank-account-id
        in: path
      responses:
        '200':
          schema:
            type: object
            properties:
              admissions:
                type: array
                items:
                  type: object
                  properties:
                    admission-status:
                      title: admission-status
                      enum:
                      - cancelled
                      - processing
                      - returned
                      - delivered
                      type: string
                      description: Specifies the progress of the inbound payment.
                    admission-scheme-information:
                      type: object
                      properties: {}
                      required:
                      - payment-scheme
                      title: admission-scheme-information
                      x-anyOf:
                      - type: object
                        properties:
                          end-to-end-identification:
                            title: end-to-end-identification
                            type: string
                            minLength: 1
                            x-allOf:
                            - title: non-empty-string
                              type: string
                              minLength: 1
                            - {}
                            description: An identifier for a payment, assigned by the originator, passed along unchanged throughout the entire end-to-end chain. Not necessarily unique.
                          payment-scheme:
                            enum:
                            - fps
                            type: string
                        required:
                        - end-to-end-identification
                        - payment-scheme
                        title: fps
                      - type: object
                        properties:
                          end-to-end-identification:
                            title: end-to-end-identification
                            type: string
                            minLength: 1
                            x-allOf:
                            - title: non-empty-string
                              type: string
                              minLength: 1
                            - {}
                            description: An identifier for a payment, assigned by the originator, passed along unchanged throughout the entire end-to-end chain. Not necessarily unique.
                          payment-scheme:
                            enum:
                            - book-transfer
                            type: string
                        required:
                        - end-to-end-identification
                        - payment-scheme
                        title: book-transfer
                      - type: object
                        properties:
                          payment-scheme:
                            enum:
                            - chaps
                            type: string
                        title: chaps
                        required:
                        - payment-scheme
                      - type: object
                        properties:
                          payment-scheme:
                            enum:
                            - bacs
                            type: string
                        title: bacs
                        required:
                        - payment-scheme
                    payment-url:
                      type: string
                      title: payment-url
                      example: /v0/payments/pm.ICAgICAgcGF5bWVudC1pZA
                      description: Link to the payment resource.
                    created-at:
                      title: created-at
                      format: date-time
                      type: string
                      description: ISO 8601 formatted date-time.
                    admission-url:
                      type: string
                      title: admission-url
                      example: /v0/admissions/pa.ICAgIGFkbWlzc2lvbi1pZA
                    unique-scheme-identifier:
                      type: string
                      title: unique-scheme-identifier
                      maxLength: 140
                      example: 'PGIT2IS7AJG77D2HK23020240212826NatWes     '
                      minLength: 1
                    account-url:
                      type: string
                      x-allOf:
                      - type: string
                      - {}
                      - type: object
                        properties:
                          bank-account-id:
                            type: string
                            format: ''
                            title: bank-account-id
                            required: true
                            name: bank-account-id
                        required:
                        - bank-account-id
                      x-anyOf:
                      - type: string
                        x-allOf:
                        - type: string
                        - {}
                        - type: object
                          properties:
                            bank-account-id:
                              type: string
                              format: ''
                              title: bank-account-id
                              required: true
                              name: bank-account-id
                          required:
                          - bank-account-id
                      - type: string
                        x-allOf:
                        - type: string
                        - {}
                        - type: object
                          properties:
                            bank-account-id:
                              type: string
                              format: ''
                              title: bank-account-id
                              required: true
                              name: bank-account-id
                          required:
                          - bank-account-id
                      title: account-url
                      example: /v0/bank/accounts/ba.IGJhbmstYWNjb3VudC1pZA
                      description: Link to the bank account resource.
                    original-unique-scheme-identifier:
                      type: string
                      title: original-unique-scheme-identifier
                      maxLength: 140
                      example: 'PGIT2IS7AJG77D2HK23020240212826NatWes     '
                      minLength: 1
                  required:
                  - admission-status
                  - admission-scheme-information
                  - payment-url
                  - created-at
                  - admission-url
                  - unique-scheme-identifier
                  - account-url
                  title: admission
              links:
                type: object
                properties:
                  prev:
                    type: string
                    x-nullable: true
                  next:
                    type: string
                    x-nullable: true
                required:
                - prev
                - next
                title: links
            required:
            - admissions
            - links
            title: admissions-paginated-response
          description: ''
        '400':
          description: ''
        '401':
          description: Requires an API key to continue
          headers:
            www-authenticate:
              type: string
              description: Returns `GriffinSession` if no valid authentication is found.
        '404':
          description: ''
      summary: List bank account admissions
  /v0/bank/accounts/{bank-account-id}/payments:
    get:
      tags:
      - Payments
      description: Lists payments made from a bank account.
      parameters:
      - in: query
        name: sort
        description: ''
        type: string
        required: false
        enum:
        - -created-at
        - created-at
      - x-allOf:
        - type: integer
          format: int64
        - minimum: 1
          maximum: 201
        maximum: 200
        minimum: 1
        name: page[size]
        required: false
        type: integer
        description: ''
        format: int64
        in: query
      - in: query
        name: page[before]
        description: A base64 encoded opaque string returned in paginated responses.
        type: string
        required: false
        format: byte
      - in: query
        name: page[after]
        description: A base64 encoded opaque string returned in paginated responses.
        type: string
        required: false
        format: byte
      - in: query
        name: include
        description: For each payment returned, include its bank account, latest submission (if one exists), rejecting user (if one exists), and/or creating user (if one exists) in the response under the `included` attribute.
        type: array
        required: false
        x-allOf:
        - {}
        - {}
        items:
          enum:
          - bank-account
          - rejected-by
          - latest-submission.created-by
          - created-by
          - latest-submission
          type: string
      - in: query
        name: filter[rejected][eq]
        description: Specifies whether the payment has been [rejected](/docs/guides/payment-approvals).
        type: boolean
        required: false
      - in: query
        name: filter[payment-direction][eq]
        description: Whether the payment is moving money into or out of the account.
        type: string
        required: false
        enum:
        - inbound-payment
        - outbound-payment
      - in: query
        name: filter[latest-submission-status][in][]
        description: ''
        type: array
        required: false
        x-allOf:
        - {}
        - {}
        items:
          enum:
          - scheduled
          - failed
          - processing
          - returned
          - delivered
          type: string
          x-anyOf:
          - title: submission-status
            enum:
            - scheduled
            - failed
            - processing
            - returned
            - delivered
            type: string
            description: Specifies the progress of the outbound payment.
          - enum:
            - 'null'
            type: string
            title: no-latest-submission-status
            description: No latest submission status
      - in: query
        name: filter[created-at][lte]
        description: Return only resources with a created-at less than or equal to the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][lt]
        description: Return only resources with a created-at less than the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][gte]
        description: Return only resources with a created-at greater than or equal to the given timestamp.
        type: string
        required: false
        format: date-time
      - in: query
        name: filter[created-at][gt]
        description: Return only resources with a created-at greater than the given timestamp.
        type: string
        required: false
        format: date-time
      - type: string
        required: true
        name: bank-account-id
        in: path
      responses:
        '200':
          schema:
            type: object
            properties:
              payments:
                type: array
                items:
                  type: object
                  properties:
                    creditor:
                      type: object
                      properties: {}
                      required:
                      - creditor-type
                      title: creditor
                      x-anyOf:
                      - type: object
                        properties:
                          account-url:
                            type: string
                            x-allOf:
                            - type: string
                            - {}
                            - type: object
                              properties:
                                bank-account-id:
                                  type: string
                                  format: ''
                                  title: bank-account-id
                                  required: true
                                  name: bank-account-id
                              required:
                              - bank-account-id
                            x-anyOf:
                            - type: string
                              x-allOf:
                              - type: string
                              - {}
                              - type: object
                                properties:
                                  bank-account-id:
                                    type: string
                                    format: ''
                                    title: bank-account-id
                                    required: true
                                    name: bank-account-id
                                required:
                                - bank-account-id
                            - type: string
                              x-allOf:
                              - type: string
                              - {}
                              - type: object
                                properties:
                                  bank-account-id:
                                    type: string
                                    format: ''
                                    title: bank-account-id
                                    required: true
                                    name: bank-account-id
                                required:
                                - bank-account-id
                            title: account-url
                            example: /v0/bank/accounts/ba.IGJhbmstYWNjb3VudC1pZA
                            description: Link to the bank account resource.
                          creditor-type:
                            enum:
                            - griffin-bank-account
                            type: string
                        required:
                        - account-url
                        - creditor-type
                        title: griffin-bank-account
                      - type: object
                        properties:
                          iban:
                            title: iban
                            pattern: ^[A-Z]{2,2}[0-9]{2,2}[a-zA-Z0-9]{1,30}$
                            type: string
                            description: An International Bank Account Number.
                            maxLength: 34
                            example: GB42GFNB12345612345678
                            minLength: 5
                          uk-domestic-sort-code:
                            title: uk-domestic-sort-code
                            pattern: ^[0-9]{6}$
                            type: string
                            description: A UK sort code.
                            maxLength: 6
                            example: '123456'
                            minLength: 6
                          bic:
                            title: bic
                            pattern: '[A-Z]{6,6}[A-Z2-9][A-NP-Z0-9]([A-Z0-9]{3,3}){0,1}'
                            type: string
                            description: A BIC.
                            maxLength: 11
                            example: GFNBGB22
                            minLength: 8
                          account-number:
                            example: '12345678'
                            x-allOf:
                            - type: string
                            - {}
                            minLength: 8
                            maxLength: 8
                            deprecated: true
                            title: account-number
                            pattern: ^[0-9]{8}$
                            type: string
                            description: A UK account number.
                          account-holder:
                            type: string
                            minLength: 1
                            title: account-holder
                            description: The name of the [account holder](/docs/terms/account-holder).
                          bank-id-code:
                            title: bank-id-code
                            type: string
                            enum:
                            - gbdsc
                            deprecated: true
                          bank-id:
                            title: bank-id
                            pattern: ^[0-9]{6}$
                            type: string
                            description: A UK sort code.
                            maxLength: 6
                            example: '123456

# --- truncated at 32 KB (288 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/griffin/refs/heads/main/openapi/griffin-payments-api-openapi.yml