API Mock Server

Create mock API endpoints — define responses for testing without a real backend. Generates Express.js code.

Mock Endpoints

About API Mock Servers

Mock servers enable frontend development and testing without a real backend. They return predefined responses for API calls, letting teams work in parallel. This tool generates Express.js mock server code you can run locally with node app.js after installing express. Ideal for prototyping, contract testing, and demo environments.

FAQ

How do I run the generated mock server?
1. npm init -y 2. npm install express 3. Save the code as app.js 4. node app.js — Your mock API runs on http://localhost:3000. Use nodemon for auto-restart on changes: npm install -g nodemon && nodemon app.js