Build Mock APIsThat Behave Like Real Backends

Build mock APIs that behave like real backends with stateful CRUD, dynamic responses, and testing scenarios—without building a server.

Perfect for

Frontend DevelopmentAPI TestingPrototypingClient DemosIntegration Testing

Try It Now — No Login Required

Explore the sample collection and interact with a mock API.

Sandbox Free

Sample Collection

POST

/mock/demo/auth/register

Create a new account → 201 Created

{
  "name": "Alice Johnson",
  "email": "alice@example.com",
  "password": "secret123"
}

Response

Select a request on the left, then click Send

Build backend simulations without complex setup.

Stateful CRUD

Data persists across requests with configurable TTL.

Dynamic Templates

Use request variables, faker data, timestamps, and dynamic expressions.

Delay Simulation

Simulate network latency and slow-response scenarios. Ideal for testing loading states and timeout scenarios.

Instant Response

Endpoints are ready to use without deployment.

CORS Ready

Access your endpoints directly from any browser without extra configuration.

Rate Limiting

Built-in throttling per workspace and per IP address.