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OpenAPI Specification

openapi: 3.2.0
info:
  title: Payments AI MoR Merchant Public Invoices API
  version: 1.0.0
  description: Merchant Public API, partner onboarding, and buyer checkout endpoints. Authenticate every call with a Merchant API Key (pai_test_* / pai_live_*). The same key reaches its own merchant resources and those of any sub-merchant it has onboarded via POST /v1/public-api/merchants.
servers:
- url: https://sandbox.mor.payments.ai/api
  description: Sandbox API
tags:
- name: Invoices
paths:
  /v1/public-api/merchants/{merchantId}/invoices:
    get:
      operationId: PublicApiInvoices_listInvoices
      parameters:
      - name: merchantId
        in: path
        required: true
        schema:
          type: string
      - name: page
        in: query
        required: false
        schema:
          type: integer
          format: int32
        explode: false
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          format: int32
        explode: false
      - name: status
        in: query
        required: false
        schema:
          type: string
        explode: false
      - name: search
        in: query
        required: false
        schema:
          type: string
        explode: false
      responses:
        '200':
          description: The request has succeeded.
          content:
            application/json:
              schema:
                type: object
                additionalProperties: {}
      summary: List invoices
      tags:
      - Invoices
  /v1/public-api/merchants/{merchantId}/invoices/{id}:
    get:
      operationId: PublicApiInvoices_getInvoice
      parameters:
      - name: merchantId
        in: path
        required: true
        schema:
          type: string
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: The request has succeeded.
          content:
            application/json:
              schema:
                type: object
                additionalProperties: {}
      summary: Get invoice
      tags:
      - Invoices
  /v1/public-api/merchants/{merchantId}/invoices/{id}/download:
    get:
      operationId: PublicApiInvoices_downloadInvoice
      parameters:
      - name: merchantId
        in: path
        required: true
        schema:
          type: string
      - name: id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: The request has succeeded.
          headers:
            content-disposition:
              required: true
              schema:
                type: string
          content:
            application/pdf:
              schema:
                type: string
                format: binary
      summary: Download invoice
      tags:
      - Invoices
components:
  securitySchemes:
    UserOAuthCredentialAuth:
      type: http
      scheme: Bearer
      description: 'Signed-in user OAuth credential (`pai_mcp_*`) issued through the dashboard consent screen for this API: the authorization and token requests name the RFC 8707 resource `<API_URL>/v1/public-api` (ADR-0020). Credentials issued for the MCP server, or for no resource, are rejected with 401 `auth.invalid_token` and `WWW-Authenticate: Bearer resource_metadata="<API_URL>/.well-known/oauth-protected-resource/v1/public-api", error="invalid_token"`. Valid on the environment that issued it only. Each operation that accepts it names one required permission; a missing permission is 403 `auth.insufficient_scope` with `WWW-Authenticate: Bearer error="insufficient_scope", scope="<permission>"`. A merchant outside the user''s active memberships is 403 `merchant.access_forbidden`; a team role below the operation''s minimum is 403 `team.role_forbidden`.'
    MerchantApiKeyAuth:
      type: http
      scheme: Bearer
      description: 'Merchant API key from Developer Tools → API Keys. Example: `Authorization: Bearer pai_test_...`. Also accepted for any active sub-merchant this key''s own merchant created.'