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Mock API Platform

Build mock APIs
that feel real

Clever Mock lets you define endpoints, responses, delays, and SSE streams dynamically — no backend required. Start from templates or build your own.

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curl — skin-check mock
$ curl https://mock-api.cleveragent.site/mock/skin-check/liveness/rules

// Response 200
{
  "version": "1.0.0",
  "challenges": ["smile"],
  "timeout_seconds": 60
}

Everything you need to mock APIs

From simple JSON responses to SSE streams and dynamic path parameters.

Instant endpoints

Create GET, POST, PUT, PATCH, DELETE endpoints with custom status codes and response bodies in seconds.

Project organization

Group endpoints into projects with unique slugs. Each project gets its own base URL at /mock/{slug}.

JSON, SSE & WebSocket

Return JSON, Server-Sent Events, or scripted WebSocket flows — including liveness camera step for Skin Check.

Configurable delays

Add response delays to simulate network latency or async processing behavior.

Ready-made seeders

Import the Skin Check API template with 10 pre-configured endpoints from the contract reference.

Secure dashboard

Login or register to manage your projects. Public mock endpoints are accessible without auth.

How it works

  1. 01

    Create a project

    Start blank or import a seeder like Skin Check API.

  2. 02

    Define endpoints

    Set method, path, status code, content type, and response body.

  3. 03

    Call your mock

    Hit /mock/your-slug/path from your frontend or curl.

Ready to mock your next feature?

Join Clever Mock and ship frontend features without waiting for backend.

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