QAFakeAPI – Master API Testing & Automation
Practice real-world API testing with realistic mock e-commerce datasets, JWT Bearer authentication, chaos status code simulation (200 to 503), and latency injections without breaking production.
A Realistic Backend Without the Cloud Bill
Finding a reliable mock API with authentication, state changes, and negative error flows is a constant headache for automation engineers. We solved that.
Unlike generic mock APIs built only for static UI wireframes, QAFakeAPI provides real in-memory state mutations, JWT Bearer token authentication chaining, negative error simulation (400–503), latency injection, and ready-to-run Bruno & Postman collections.
- ✔Stateful CRUD: POST, PUT, PATCH, and DELETE actually mutate in-memory state in real-time.
- ✔1-Click Database Reset: Instantly wipe data back to initial defaults at any time.
- ✔Free Bruno Collection: Download a pre-configured .bru test suite directly from the playground.
⚙️ Engineered for Modern QA Automation
All the realistic e-commerce endpoints, edge-case chaos, and authentication workflows needed to write rock-solid test suites.
100% In-Memory Isolation
Create, update, and delete mock products and users freely. Never worry about corrupting shared test environments or leaking real database credentials. Reset back to clean defaults anytime via /api/v1/reset.
Negative Chaos Testing
Simulate edge-case HTTP status codes on demand: 400 Bad Request, 401 Unauthorized, 404 Not Found, 429 Rate Limit, 500 & 503 Server Errors without crashing real backends.
Network Latency Simulation
Simulate slow mobile networks or sluggish database queries by injecting 0ms to 5000ms delay. Essential for verifying timeout thresholds, loading skeletons, and retry logic.
JWT Bearer Token Chaining
Practice end-to-end authentication flows. Log in to capture a Bearer token, automatically attach it into automation test runners, and execute protected CRUD calls.
Native Bruno Collection (.bru)
Ready-to-test Bruno API collection directly available in the Studio Playground. Ideal for CI/CD test pipelines with bru run and Postman Newman migrations.
Multi-Framework Code Generator
Export instant runnable automation code snippets for Playwright TS, pytest Python, Bruno, and cURL directly from within the Studio Console.
Tested & Compatible with Leading Automation Frameworks
🛠️ How to Test & Automate with QAFakeAPI
The exact workflow used by professional QA engineers to test endpoints and automate with Bruno or Playwright.
Open DevTools
Press F12 in your browser and switch to the Network tab to monitor live HTTP requests.
Trigger Request
Open the Studio Playground to execute GET, POST, PUT, DELETE, or chaos simulations.
Copy as cURL
Right-click the network entry in DevTools → Copy → Copy as cURL command.
Import & Automate
Paste directly into Bruno, Playwright, or Postman. Add assertions and run automated regression suites.
Why QA Engineers Choose QAFakeAPI
Generic mock APIs were built for UI design wireframes. QAFakeAPI was purpose-built for real software testing and SDET automation.
| Feature | QAFakeAPI (For QA) | Generic Mock APIs |
|---|---|---|
| Real In-Memory DB Mutations | ✅ Real Stateful Changes | ❌ Fake 200 (No state change) |
| 1-Click Database Reset | ✅ Instant via UI or /api/v1/reset | ❌ Not available |
| JWT Bearer Token Flow | ✅ Real Token Generation & Protection | ⚠️ Static dummy tokens only |
| Chaos Testing (400–503) | ✅ Built-in /mock/status/:code | ❌ Fixed 200 OK only |
| Network Latency Injection | ✅ Custom /mock/delay/:ms (0-5000ms) | ❌ No delay support |
| Pre-built Bruno Collection | ✅ 100% Free .bru Suite Included | ❌ None |
Start Testing APIs Without Limits
No signup, no API keys, and zero configuration. Open the Studio Playground and start making real requests in seconds.
Launch QAFakeAPI Now →