Mock APIs in Seconds.
Create mock API endpoints instantly. For testing, prototypes, and demos. No signup. Auto-expire after TTL.

Prioritize fast mock APIs over backend waits.
- Create a new mock endpoint in under 1 second with a single POST.
- Share a temporary URL with your frontend or teammates instantly.
- Done. Endpoint auto-expires after the TTL you choose.
{"data": {"ok": true}}
What Developers Use MockMirror For
From rapid prototyping to comprehensive testing, MockMirror helps you build faster without waiting for backend APIs.
Get Started with Your Favorite Stack
Easily integrate with the tools you know and love. We're always working on adding more to this list.
1import requests
2
3response = requests.get('https://api.mockmirror.dev/v1/mocks/abc123')
4data = response.json()
5
6print(data)
7# Returns: {"hello": "world", "ok": true}Common Use Cases
Instead of using dummy data or hardcoded JSON, create real mock API endpoints in seconds. Focus on building your idea while MockMirror handles the backend simulation.
Create mock endpoints for client projects during development. When the real API is ready, simply swap the URL—no need to rewrite dummy code or change your implementation.
Showcase your frontend work with live mock endpoints. Create realistic API responses to demonstrate functionality before the backend is complete, impressing clients with a working prototype.