If you're looking for a free API for testing, you usually want one thing: something you can hit immediately without setting up a backend, database, or authentication system.
ReqRes provides a public REST API that developers and QA teams use every day to test HTTP clients, frontend apps, and automation scripts.
Try one now, with no key or signup: open https://reqres.in/api/users?page=2 in your browser and you'll get a live JSON response. Below are more real examples you can use right now.
How do I make a basic GET request?
curl https://reqres.in/api/users?page=2
Open it live:GET /api/users?page=2
This returns realistic JSON data with pagination, making it ideal for smoke tests and quick validation.
How do I create data with POST?
curl -X POST https://reqres.in/api/users \
-H "Content-Type: application/json" \
-d '{ "name": "Jane", "job": "QA Engineer" }'
You'll receive a structured response and status code similar to a real backend.
Why teams use ReqRes for testing
Teams use ReqRes because it:
- Requires no setup or credentials
- Returns predictable, realistic responses
- Works with Postman, curl, Playwright, Cypress, and REST clients
For a complete Postman setup guide, see API Testing with Postman. For Playwright integration, see API Testing with Playwright. For a complete overview of QA workflows, see API Testing for QA Engineers.
When a free API isn't enough
If you need persistent data, per-user isolation, or authentication flows, ReqRes Projects lets you turn the same patterns into a real backend without standing up servers.
Coming from JSONPlaceholder and need more? See our JSONPlaceholder alternatives comparison for a detailed breakdown.
For detailed endpoint documentation, check the ReqRes API docs.
Get started here: https://reqres.in/signup
See a real example app: https://app.reqres.in/?next=/examples/notes-app
Learning API testing? See 10 free public APIs to practise API testing, with practice projects from your first request to CI.