Fiserv

Fiserv Limits API

Manage credit, temporary credit, and cash limits.

GitHub OpenAPI

Operations 2

GET /v1/limits Fiserv Get account limits #
PATCH /v1/limits Fiserv Update account limits #

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-limits-api-openapi.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/fiserv-limits-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

fiserv-limits-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Fiserv CardDeveloper Limits API
  description: The Fiserv CardDeveloper API enables financial institutions and cardholders to manage card and account information through various touchpoints. The API supports account creation, card management, authorization management, transaction inquiry, limit management, and statement retrieval for credit and debit card programs.
  version: 1.0.0
  contact:
    name: Fiserv Developer Support
    url: https://developer.fiserv.com/product/CardDeveloper
  termsOfService: https://www.fiserv.com/en/legal.html
servers:
- url: https://cert.api.fiservapps.com
  description: Certification Environment
- url: https://prod.api.fiservapps.com
  description: Production Environment
security:
- bearerAuth: []
tags:
- name: Limits
  description: Manage credit, temporary credit, and cash limits.
paths:
  /v1/limits:
    get:
      operationId: getLimits
      summary: Fiserv Get account limits
      description: Retrieves account limits including credit limit, temporary credit limit, and cash advance limit.
      tags:
      - Limits
      parameters:
      - name: accountNumber
        in: query
        required: true
        schema:
          type: string
        description: The account number to retrieve limits for.
      responses:
        '200':
          description: Limits returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LimitsResponse'
        '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: updateLimits
      summary: Fiserv Update account limits
      description: Updates account limits such as credit limit, temporary credit limit, or cash advance limit.
      tags:
      - Limits
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LimitsUpdateRequest'
      responses:
        '200':
          description: Limits updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LimitsUpdateResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    LimitsUpdateRequest:
      type: object
      description: Request body for updating account limits.
      required:
      - accountNumber
      properties:
        accountNumber:
          type: string
          description: The account number.
        creditLimit:
          type: number
          format: double
          description: The new credit limit.
        temporaryCreditLimit:
          type: number
          format: double
          description: The new temporary credit limit.
        temporaryCreditLimitExpiry:
          type: string
          format: date
          description: The expiry date for the temporary limit.
        cashLimit:
          type: number
          format: double
          description: The new cash advance limit.
    ErrorResponse:
      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.
    LimitsResponse:
      type: object
      description: Response body for account limits inquiry.
      properties:
        accountNumber:
          type: string
          description: The account number.
        creditLimit:
          type: number
          format: double
          description: The permanent credit limit.
        temporaryCreditLimit:
          type: number
          format: double
          description: The temporary credit limit.
        cashLimit:
          type: number
          format: double
          description: The cash advance limit.
        availableCredit:
          type: number
          format: double
          description: The available credit.
        availableCash:
          type: number
          format: double
          description: The available cash advance amount.
    LimitsUpdateResponse:
      type: object
      description: Response body for limits update.
      properties:
        accountNumber:
          type: string
          description: The account number.
        status:
          type: string
          description: The update status.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth 2.0 Bearer token for API authentication.
externalDocs:
  description: CardDeveloper API Documentation
  url: https://developer.fiserv.com/product/CardDeveloper/docs/?path=docs/gettingstarted/getting-started.md