Create multiple endpoints with different HTTP methods (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS)

Define path parameters like /users/:id that resolve dynamically in response bodies

Configure custom status codes, response headers, and content types (JSON, text, HTML, XML)

Add dynamic templates: {{params.id}}, {{query.page}}, {{headers.authorization}}, {{body.field}}, {{now}}, {{uuid}}

Generate realistic fake data with Faker.js: {{faker.person.fullName}}, {{faker.internet.email}}, {{faker.number.int(1,100)}}

Return arrays with {{#repeat N}} blocks, with {{index}}, {{oneOf}}, and {{int}} helpers for realistic lists

Add a response delay in milliseconds to simulate slow networks and test loading states

Turn any array response into a collection with json-server style pagination, filtering, and sorting (_page, _limit, _sort, q, X-Total-Count)

Set up conditional responses based on query params, headers, or body content

Configure response sequences for testing retry logic and error scenarios

Import an OpenAPI 3.x or Swagger 2.0 spec (JSON or YAML) to generate endpoints automatically

Export to Postman, Mockoon, json-server db.json, OpenAPI, or a re-importable config

Use pre-built templates: REST CRUD, Health Check, Auth Endpoints

Share entire mock API configurations via a URL, with the config encoded in the link

CORS is automatically enabled on all mock responses for cross-origin testing

Auto-saves to localStorage so your mock APIs persist across sessions

Endpoints

Mock API Builder - Create Multi-Endpoint Mock REST APIs Instantly