openapi: 3.0.3
info:
  title: TIAA Financial Data Exchange Accounts Transactions API
  description: The TIAA Financial Data Exchange (FDX) API provides authorized fintechs and financial aggregators with secure access to customer account data, including balances, transactions, investment positions, and income information from TIAA retirement and brokerage accounts. This API is built on the FDX open standard (v6.x) and uses OAuth 2.0 for customer-consented data sharing.
  version: '6.0'
  contact:
    name: TIAA Developer Support
    url: https://developer.tiaa.org/public/fdx
  termsOfService: https://developer.tiaa.org/public/terms
  license:
    name: TIAA API License
    url: https://developer.tiaa.org/public/terms
servers:
- url: https://api.tiaa.org/fdx/v6
  description: TIAA FDX Production API
tags:
- name: Transactions
  description: Account transaction history
paths:
  /accounts/{accountId}/transactions:
    get:
      operationId: listTransactions
      summary: List Account Transactions
      description: Returns transaction history for a specific account within an optional date range.
      tags:
      - Transactions
      security:
      - OAuth2: []
      parameters:
      - name: accountId
        in: path
        required: true
        schema:
          type: string
      - name: startTime
        in: query
        schema:
          type: string
          format: date-time
        description: Start of transaction date range (ISO 8601)
      - name: endTime
        in: query
        schema:
          type: string
          format: date-time
        description: End of transaction date range (ISO 8601)
      - name: offset
        in: query
        schema:
          type: integer
      - name: limit
        in: query
        schema:
          type: integer
      responses:
        '200':
          description: Transaction list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionList'
        '404':
          description: Account not found
components:
  schemas:
    Transaction:
      type: object
      properties:
        transactionId:
          type: string
        accountId:
          type: string
        transactionType:
          type: string
          enum:
          - CREDIT
          - DEBIT
          - DIVIDEND
          - INTEREST
          - CONTRIBUTION
          - WITHDRAWAL
          - TRANSFER
        amount:
          type: number
          format: double
        description:
          type: string
        transactionDate:
          type: string
          format: date-time
        postedDate:
          type: string
          format: date-time
        status:
          type: string
          enum:
          - PENDING
          - POSTED
    TransactionList:
      type: object
      properties:
        transactions:
          type: array
          items:
            $ref: '#/components/schemas/Transaction'
        page:
          $ref: '#/components/schemas/Page'
    Page:
      type: object
      properties:
        nextOffset:
          type: integer
        totalElements:
          type: integer
        limit:
          type: integer
  securitySchemes:
    OAuth2:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://auth.tiaa.org/oauth2/authorize
          tokenUrl: https://auth.tiaa.org/oauth2/token
          scopes:
            openid: OpenID Connect
            profile: Customer profile
            accounts: Account data access
            transactions: Transaction data access
            investments: Investment data access
            tax: Tax document access