Available nowFree API, no signup or key

The mock REST API
built for frontend work.

Build against realistic users, posts, todos, and comments. Practice CRUD, test loading and error states, and get useful JSON with one request.

curl https://api.apimocker.com/posts/1

10Users
100Posts
200Todos
500Comments

Drop-in mock data for the frontend stack you already use

ReactVueAngularSvelteNext.jsVanilla JS
Free shared API

Useful REST behavior without
the disposable backend.

Learn fetch, build tutorials, prototype interfaces, and test frontend states. The shared data resets every day at midnight UTC.

One public base URL

Realistic resources, ready in one request.

Use full CRUD, filtering, sorting, pagination, search, relationships, and post likes from any HTTP client.

No account or token

Call public endpoints directly from a browser, terminal, course project, or frontend app.

Predictable resets

The shared API returns to its seeded state every 24 hours, so experiments do not linger forever.

Built for UI states

Simulate delays and common errors, then combine search, filtering, sorting, and pagination.

Manual private beta

Isolated data when shared data is not enough.

Keep a seeded copy and reset snapshot that no other ApiMocker user can change.

course-dashboard
Isolated mock data with persistent usage tracking
A familiar REST contract

Readable request.
Realistic response.

Single-resource endpoints return the resource directly. Posts include the current nested user summary, so relationship-driven interfaces can start immediately.

  • Current seeded post title and body
  • Nested user ID, name, username, and email
  • No SDK, account, or configuration
Request GET /posts/1 →
GET /posts/1200 OK
{
  "id": 1,
  "title": "Getting Started with Modern Web Development: A Practical First Project",
  "body": "This is a comprehensive article about getting started with modern web development.",
  "userId": 1,
  "user": {
    "id": 1,
    "name": "John Doe",
    "username": "johndoe",
    "email": "john.doe@example.com"
  }
}

Reset-generated timestamp fields are omitted for readability.

API overview

Enough behavior to build the whole interface.

Base URL: https://api.apimocker.com

Core resources supportGETPOSTPUTPATCHDELETE

Test edge states

Add controlled latency or request known error responses without changing your frontend code.

/posts?_delay=2000
Public API and private beta

Start shared. Add isolation when it matters.

Billing and customer self-service are not launched. Developer and Classroom environments are manually provisioned private beta plans.

Developer private beta

Manual provisioning

An isolated environment for demos, portfolios, and side projects that need stable mock data.

  • 25,000 requests per month
  • 120 requests per minute
  • 1,000 records per resource
  • Dedicated reset snapshot
Read beta details
Classroom private beta

Manual provisioning

Higher default limits for courses, workshops, cohorts, and teaching teams.

  • 100,000 requests per month
  • 240 requests per minute
  • 2,000 records per resource
  • Dedicated reset snapshot
Read beta details

Beta limits are plan defaults and can be adjusted during manual provisioning.

Your next fetch starts here

Build the interface.
Use the mock data that is ready now.

Make your first request in seconds. No signup, token, or SDK required.