API Response Mocker

Define mock API endpoints and generate handler code for Express.js, Next.js App Router, and Hono.

Presets:

Endpoints

Edit Endpoint

HTTP Method

Route Path

Status Code

Delay (ms)

0-5000ms latency simulation

Response Headers

Response Body (JSON)

Generated Code

const express = require("express");
const app = express();
app.use(express.json());

app.get("/api/users/:id", (req, res) => {
    res.status(200).json({
      "id": 1,
      "name": "John Doe",
      "email": "john@example.com"
    });
});

app.listen(3000, () => console.log("Mock server running on port 3000"));