API Mocker V1
Intercept, modify and mock HTTP requests
As of June 2026, API Mocker V1 has 16 users and a 5.00/5 rating from 1 reviews in the Developer Tools category.
Usersup 6.7 percent+6.7%
16
16
Ratingno change0%
5.00
1 reviews
Reviewsno change0%
1
Version
1.0.0
Manifest V3
History
5 snapshotsTracking since Apr 1, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 1, 2026 | 15 | 5.00 | 1 | 1.0.0 |
| Apr 18, 2026 | 12 | 5.00 | 1 | 1.0.0 |
| May 15, 2026 | 15 | 5.00 | 1 | 1.0.0 |
| May 24, 2026 | 16 | 5.00 | 1 | 1.0.0 |
| Jun 3, 2026 | 14 | 5.00 | 1 | 1.0.0 |
| Now | 16 | 5.00 | 1 | 1.0.0 |
Permissions & access
- Permissions
- storage
- Host access
- <all_urls>
Screenshots
About
API Mocker - The Ultimate API Mocking & Testing Tool
Short Description
Intercept, modify, and mock HTTP requests directly in your browser. No backend required.
Long Description
API Mocker is a powerful developer tool that gives you complete control over your browser's network traffic. Whether you're a frontend developer waiting for backend APIs, a QA engineer testing edge cases, or a designer tweaking UI states, API Mocker streamlines your workflow by allowing you to simulate any API response instantly.
Why You Should Install It:
🚀 Zero Backend Dependency: Start building your frontend immediately. Define API rules and get JSON responses without writing a single line of backend code.
⚡ Accelerate Development: Stop waiting for API deployment. Mock missing endpoints and proceed with your UI implementation.
🧪 Test Edge Cases Easily: How does your app handle a 500 error? Or a 404? Or a slow network? Simulate these scenarios with a single click to ensure your app is robust.
Key Features:
Intercept & Modify: Automatically capture XHR and Fetch requests matching your custom URL patterns.
Dynamic Rule Management: Create, edit, and toggle mocking rules on the fly with a clean, intuitive interface.
Flexible Matching: Support for exact URL matching and wildcard patterns (e.g., /api/users/*).
Full Response Control: Customize HTTP status codes (200, 400, 500, etc.), response headers, and response bodies (JSON, Text, XML).
Network Simulation: Add artificial delays to simulate slow network connections and loading states.
Visual Notifications: Get real-time feedback when a request is intercepted and mocked.
How It Works:
Open the API Mocker interface.
Add a new rule (e.g., Match https://api.example.com/users).
Define the response you want (Status 200, Body: [{ "id": 1, "name": "Test User" }]).
Browse your site. When the app requests that URL, API Mocker intercepts it and serves your defined response instantly.
Perfect for: Frontend Developers, QA Testers, and Full Stack Engineers looking for a lightweight, browser-based mocking solution.
Privacy-First: API Mocker runs entirely within your browser. No data is sent to external servers.Technical
- Version
- 1.0.0
- Manifest
- V3
- Size
- 61.29KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- cdefiomopfbidjlidpaacadeecmcmeac
- Developer ID
- ua7a0f860d0632a050dfa8b81019f64aa
- Developer Email
- [email protected]
- Created
- Dec 16, 2025
- Last Updated (Store)
- Dec 16, 2025
- Last Scraped
- Jun 3, 2026
- Website
- —
- Support URL
- —
- Privacy Policy
- —
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Data sourced from the Chrome Web Store · last verified Jun 3, 2026.