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apilab.vercel.app/api/mock/users

Request

GET/api/mock/users

Status200 OK

Delay0ms

Responseapplication/json

Time11ms

Live endpoint

Response

200 OK

{
  "users": [
    { "id": 1, "name": "Alice Chen",  "role": "admin" },
    { "id": 2, "name": "Bob Smith",   "role": "user"  }
  ],
  "total": 2
}

10,000+Mock APIs created

2,500+Developers

< 5msAvg response time

99.9%Uptime

How it works

From idea to live endpoint
in three steps.

No servers to spin up. No config files. Just define and call.

Define your endpoint

Pick a path like /users or /orders and choose the HTTP method.

endpoint: /users
method:   GET

Write the response

Paste any JSON body. Set the status code and an optional delay.

status:   200
delay:    0ms
body:     { ... }

Get your live URL

Copy the generated endpoint and call it from anywhere — browser, Postman, or code.

GET apilab.vercel.app
    /api/mock/users

Features

Everything you need.
Nothing you don't.

Instant Endpoints

Create a live, callable URL in under 10 seconds. No servers, no deploys, no waiting.

Public by Default

Every mock endpoint is immediately accessible via a shareable public URL.

Full JSON Control

Write any JSON response body. Arrays, nested objects, dynamic fields — all supported.

Custom Status Codes

Return 200, 201, 400, 404, 500 — whatever your frontend needs to test against.

Delay Simulation

Add artificial latency to simulate slow networks and test loading states perfectly.

Method Support

GET, POST, PUT, DELETE — define the HTTP method that matches your real API contract.

Your endpoint, your rules

One URL pattern.
Infinite possibilities.

Every mock API you create maps to a clean, shareable public URL.

apilab.vercel.appDomain

api/mockBase path

usersYour endpoint

Callable from browser, Postman, or code

Returns your configured JSON instantly

Supports all HTTP methods

Optional delay for latency testing

Loved by developers

Built for teams that
move fast.

“APILab cut our frontend sprint time in half. We stop blocking on the backend team completely.”

Arjun S.

Frontend Developer

“I mock every new feature's API on day one. By the time backend ships, the UI is already done.”

Rohan M.

Senior Engineer

“Our QA team loves the custom status codes. Testing error states has never been easier.”

Priya K.

QA Engineer

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Mock APIs.Instantly.

From idea to live endpointin three steps.