API Mock Interceptor icon

API Mock Interceptor

by yura.lychushun · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Intercept and mock API responses for testing error scenarios

Users
2
0 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#355K
#271K among extensions
Version
2.0.0
updated 10 Sep 2026

Users

monthly, 2 months
012Aug 2026Oct 2026Oct 2026
Latest, 15 Oct 2026: 2 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 months
001Aug 2026Oct 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About API Mock Interceptor

🔄 Intercept & Mock API Calls for Easy Testing API Mock Interceptor is a powerful development tool that allows you to intercept HTTP requests and return custom mock responses. Perfect for testing error scenarios, developing without backend dependencies, and validating application behavior under different conditions. ✨ Key Features: • Visual Interface - Easy-to-use popup for managing mock scenarios • Pattern Matching - Flexible URL patterns with wildcard support • Error Testing - Simulate 404s, 500s, timeouts, and custom errors • Response Delays - Test slow network conditions with configurable delays • Import/Export - Share scenario configurations across teams • JSON Editor - Advanced configuration with built-in validation • Persistent Storage - Settings saved across browser sessions 🎯 Perfect For: • Frontend developers building without backend APIs • QA engineers testing error handling and edge cases • API developers validating error responses • Teams needing to simulate various server conditions 🚀 How It Works: Enable the interceptor with one click Add scenarios specifying URL patterns, methods, and responses Navigate to your web application Matching API calls return your mock data instead of hitting the server No server setup required - works instantly on any website!

Growth

WindowUsersChangeRatingsRating
7 days+1+100.0%00.00
30 days0+0.0%00.00

Chrome Web Store search rankings

Where API Mock Interceptor appears when people search the store, with the 30 day change
Search phrasePosition30 days
mock#19+43

Version history

4 versions recorded
2.0.010 Sep 2026
1.2.017 Aug 2026
1.1.017 Aug 2026
1.0.013 Aug 2026

Details

Category
Developer Tools
First seen
13 Aug 2026
Size
63 KB
Languages
en
Pricing
Free
Extension ID
kaklcnggcanjdhegllgafbibefjhcned

Permissions and risk

Elevated riskimpact 3, likelihood 3
Permissions
activeTabstoragescriptingtabscontextMenus
Site access
<all_urls>
Can read and change data on every website you visit.

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