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OpenAPI Specification

openapi: 3.0.3
info:
  title: BNY Mellon Treasury Services Accounts Transactions API
  description: The BNY Mellon Treasury Services API enables corporate clients to programmatically initiate and track payments, access account balances and transaction history, manage wire transfers, and retrieve reporting data. The API is available via the BNY Mellon Marketplace (marketplace.bnymellon.com) and supports global treasury operations across multiple currencies and payment rails.
  version: 4.0.0
  contact:
    url: https://marketplace.bnymellon.com/treasury/api-central/
servers:
- url: https://api.bnymellon.com/treasury/v4
  description: BNY Mellon Treasury Services API Production
- url: https://apiuat.bnymellon.com/treasury/v4
  description: BNY Mellon Treasury Services API UAT/Sandbox
security:
- OAuth2: []
tags:
- name: Transactions
paths:
  /accounts/{accountId}/transactions:
    get:
      operationId: listTransactions
      summary: List Transactions
      description: Retrieve transaction history for a specific account.
      tags:
      - Transactions
      parameters:
      - name: accountId
        in: path
        required: true
        description: Account identifier
        schema:
          type: string
      - name: fromDate
        in: query
        description: Start date (ISO 8601)
        schema:
          type: string
          format: date
      - name: toDate
        in: query
        description: End date (ISO 8601)
        schema:
          type: string
          format: date
      - name: limit
        in: query
        description: Page size
        schema:
          type: integer
          default: 100
      responses:
        '200':
          description: Transaction list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionListResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    Transaction:
      type: object
      description: A transaction on a BNY Mellon account
      properties:
        transactionId:
          type: string
        accountId:
          type: string
        amount:
          type: number
          format: double
        currency:
          type: string
        debitCredit:
          type: string
          enum:
          - debit
          - credit
        description:
          type: string
        referenceNumber:
          type: string
        valueDate:
          type: string
          format: date
        bookingDate:
          type: string
          format: date
        status:
          type: string
    TransactionListResponse:
      type: object
      description: Paginated transaction list
      properties:
        transactions:
          type: array
          items:
            $ref: '#/components/schemas/Transaction'
        totalCount:
          type: integer
        pageSize:
          type: integer
    ErrorResponse:
      type: object
      description: API error response
      properties:
        errorCode:
          type: string
        message:
          type: string
        requestId:
          type: string
        details:
          type: array
          items:
            type: string
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://api.bnymellon.com/oauth/token
          scopes:
            accounts:read: Read account data
            balances:read: Read balance data
            transactions:read: Read transaction history
            payments:write: Initiate and manage payments
            transfers:write: Initiate funds transfers