Fiserv

Fiserv Accounts API

Create, retrieve, update, and manage deposit and loan accounts.

GitHub OpenAPI

Operations 5

POST /banking/accounts Fiserv Create a new account #
GET /banking/accounts/{accountId} Fiserv Retrieve account details #
PATCH /banking/accounts/{accountId} Fiserv Update account details #
POST /v2/accounts/account Fiserv Create a new card account #
GET /v2/accounts/{accountNumber} Fiserv Retrieve account details #

Documentation

📖
Documentation
https://developer.fiserv.com/product/CommerceHub/docs/?path=docs/Resources/API-Documents/Use-Our-APIs.md
📖
Documentation
https://developer.fiserv.com/product/CardPointe/docs/?path=docs%2FAPIs%2FCardPointeGatewayAPI.md
📖
Documentation
https://developer.fiserv.com/product/BankingHub/docs/?path=docs/get-started.md
📖
Documentation
https://developer.fiserv.com/product/CardDeveloper/docs/?path=docs/gettingstarted/getting-started.md

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/fiserv/refs/heads/main/openapi/fiserv-accounts-api-openapi.yml

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OpenAPI Specification

fiserv-accounts-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Fiserv Accounts API
  version: 1.0.0
  termsOfService: https://www.fiserv.com/en/legal.html
  description: 'Operations tagged Accounts across 2 of this provider''s published API definitions: fiserv-bankinghub-openapi.yml, fiserv-carddeveloper-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://cert.api.fiservapps.com
  description: Certification Environment
- url: https://prod.api.fiservapps.com
  description: Production Environment
security:
- bearerAuth: []
tags:
- name: Accounts
  description: Create, retrieve, update, and manage deposit and loan accounts.
paths:
  /banking/accounts:
    post:
      operationId: addAccount
      summary: Fiserv Create a new account
      description: Creates a new deposit or loan account for an existing customer. Supports checking, savings, money market, certificate of deposit, and loan account types.
      tags:
      - Accounts
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AccountAddRequest'
      responses:
        '201':
          description: Account created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountAddResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    servers:
    - url: https://cert.api.fiservapps.com
      description: Certification Environment
    - url: https://prod.api.fiservapps.com
      description: Production Environment
  /banking/accounts/{accountId}:
    get:
      operationId: getAccount
      summary: Fiserv Retrieve account details
      description: Retrieves detailed information for a specific account including balance, status, and account attributes.
      tags:
      - Accounts
      parameters:
      - $ref: '#/components/parameters/AccountId'
      responses:
        '200':
          description: Account details returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountInquiryResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    patch:
      operationId: updateAccount
      summary: Fiserv Update account details
      description: Updates attributes of an existing account such as status, description, or other configurable fields.
      tags:
      - Accounts
      parameters:
      - $ref: '#/components/parameters/AccountId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AccountUpdateRequest'
      responses:
        '200':
          description: Account updated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountUpdateResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
    servers:
    - url: https://cert.api.fiservapps.com
      description: Certification Environment
    - url: https://prod.api.fiservapps.com
      description: Production Environment
  /v2/accounts/account:
    post:
      operationId: addAccount
      summary: Fiserv Create a new card account
      description: Creates a new consumer or commercial card account. Supports credit account creation with configurable credit limits and billing preferences.
      tags:
      - Accounts
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AccountAddRequest_2'
      responses:
        '201':
          description: Account created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountAddResponse_2'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse_2'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse_2'
    servers:
    - url: https://cert.api.fiservapps.com
      description: Certification Environment
    - url: https://prod.api.fiservapps.com
      description: Production Environment
  /v2/accounts/{accountNumber}:
    get:
      operationId: getAccount
      summary: Fiserv Retrieve account details
      description: Retrieves account-specific data including balances, limits, status, and billing information.
      tags:
      - Accounts
      parameters:
      - $ref: '#/components/parameters/AccountNumber'
      responses:
        '200':
          description: Account details returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AccountInquiryResponse_2'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse_2'
        '404':
          description: Account not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse_2'
    servers:
    - url: https://cert.api.fiservapps.com
      description: Certification Environment
    - url: https://prod.api.fiservapps.com
      description: Production Environment
components:
  schemas:
    AccountAddRequest:
      type: object
      description: Request body for creating a new account.
      required:
      - partyId
      - accountType
      properties:
        partyId:
          type: string
          description: The party identifier for the account owner.
        accountType:
          type: string
          enum:
          - DDA
          - SDA
          - MMA
          - CDA
          - LOAN
          description: The type of account to create.
        productCode:
          type: string
          description: The product code for the account.
        branchId:
          type: string
          description: The branch identifier where the account is opened.
        initialDeposit:
          type: number
          format: double
          description: The initial deposit amount.
        currency:
          type: string
          pattern: ^[A-Z]{3}$
          description: The ISO 4217 currency code.
    AccountUpdateRequest:
      type: object
      description: Request body for updating account attributes.
      properties:
        status:
          type: string
          description: The updated account status.
        description:
          type: string
          description: The updated account description.
    ErrorResponse:
      type: object
      description: Standard error response.
      properties:
        statusCode:
          type: string
          description: The error status code.
        statusDescription:
          type: string
          description: A human-readable error description.
        errors:
          type: array
          items:
            type: object
            properties:
              code:
                type: string
                description: The specific error code.
              message:
                type: string
                description: The error message.
              field:
                type: string
                description: The field that caused the error.
          description: Detailed error information.
    AccountInquiryResponse:
      type: object
      description: Response body for account inquiry.
      properties:
        accountId:
          type: string
          description: The account identifier.
        accountType:
          type: string
          description: The account type.
        status:
          type: string
          description: The account status.
        balances:
          type: object
          description: Account balance information.
          properties:
            available:
              type: number
              format: double
              description: The available balance.
            current:
              type: number
              format: double
              description: The current (ledger) balance.
            pending:
              type: number
              format: double
              description: The pending balance.
        openDate:
          type: string
          format: date
          description: The date the account was opened.
        branchId:
          type: string
          description: The branch identifier.
    AccountAddResponse:
      type: object
      description: Response body for account creation.
      properties:
        accountId:
          type: string
          description: The newly created account identifier.
        accountType:
          type: string
          description: The account type.
        status:
          type: string
          description: The account status.
        statusCode:
          type: string
          description: The response status code.
        statusDescription:
          type: string
          description: The response status description.
    AccountUpdateResponse:
      type: object
      description: Response body for account update.
      properties:
        accountId:
          type: string
          description: The account identifier.
        statusCode:
          type: string
          description: The response status code.
        statusDescription:
          type: string
          description: The response status description.
    AccountAddRequest_2:
      type: object
      description: Request body for creating a card account.
      required:
      - accountType
      properties:
        accountType:
          type: string
          enum:
          - CONSUMER_CREDIT
          - COMMERCIAL_CREDIT
          - CONSUMER_DEBIT
          description: The type of card account.
        creditLimit:
          type: number
          format: double
          description: The credit limit for credit accounts.
        billingCycleDay:
          type: integer
          minimum: 1
          maximum: 28
          description: The billing cycle day of the month.
    ErrorResponse_2:
      type: object
      description: Standard error response.
      properties:
        code:
          type: string
          description: The error code.
        message:
          type: string
          description: The error message.
        details:
          type: array
          items:
            type: object
            properties:
              field:
                type: string
                description: The field that caused the error.
              message:
                type: string
                description: The field-level error message.
          description: Detailed field-level errors.
    AccountInquiryResponse_2:
      type: object
      description: Response body for account inquiry.
      properties:
        accountNumber:
          type: string
          description: The account number.
        accountType:
          type: string
          description: The account type.
        status:
          type: string
          description: The account status.
        creditLimit:
          type: number
          format: double
          description: The credit limit.
        availableCredit:
          type: number
          format: double
          description: The available credit.
        currentBalance:
          type: number
          format: double
          description: The current balance.
        minimumPaymentDue:
          type: number
          format: double
          description: The minimum payment due.
        paymentDueDate:
          type: string
          format: date
          description: The payment due date.
    AccountAddResponse_2:
      type: object
      description: Response body for account creation.
      properties:
        accountNumber:
          type: string
          description: The new account number.
        status:
          type: string
          description: The account status.
  parameters:
    AccountId:
      name: accountId
      in: path
      required: true
      schema:
        type: string
      description: The unique account identifier.
    AccountNumber:
      name: accountNumber
      in: path
      required: true
      schema:
        type: string
      description: The card account number.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth 2.0 Bearer token for API authentication.
x-refined-from:
- fiserv-bankinghub-openapi.yml
- fiserv-carddeveloper-openapi.yml