API Interceptor

Block API requests that match your custom regular expressions. Simplify testing by controlling network traffic.

As of June 2026, API Interceptor has 17 users in the Developer Tools category.

Usersdown 10.5 percent10.5%
17
17
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

4 snapshots

Tracking since Apr 18, 2026.

21.321916.68Apr 18, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 2026191.0.0
May 3, 2026181.0.0
May 12, 2026201.0.0
Jun 6, 2026211.0.0
Now171.0.0

Permissions & access

Permissions
declarativeNetRequeststorage
Host access
<all_urls>

Screenshots

API Interceptor screenshot 1

About

# API Interceptor

Block API requests that match your custom regular expressions. Simplify front-end testing by simulating network failures without ever reloading your web page.

## Features

- 🚫 **Block requests** using custom regex patterns
- 🎯 **Target specific APIs** with precise pattern matching
- 💾 **Persistent settings** - your patterns and state are saved
- ⚡ **Real-time control** - enable/disable blocking instantly
- ✅ **Pattern validation** - validates regex before applying
- 🔒 **Privacy-focused** - minimal permissions, no data collection

## How to Use

1. Click the extension icon to open the popup
2. Enter a regex pattern to match URLs you want to block (e.g., `.*api\.example\.com.*`)
3. Click "Save & Apply" to save your pattern
4. Toggle the switch to enable/disable blocking
5. Your settings persist across browser sessions

## Examples

Block all requests to a specific API:

```
.*api\.example\.com.*
```

Block all API endpoints:

```
.*\/api\/.*
```

Block analytics services:

```
.*analytics.*
```

## Permissions

- `declarativeNetRequest` - Required to block network requests
- `storage` - Required to save your settings
- `host_permissions: <all_urls>` - Required to intercept requests on all websites

## Privacy

This extension does not collect, store, or transmit any personal data. All settings are stored locally on your device.
- ❌ Does not modify page content
- ❌ Does not inject scripts into pages
- ❌ Does not collect or analyze browsing data
- ❌ Does not monitor user behavior
- ❌ Does not provide analytics or statistics
- ❌ Does not interact with page DOM
- ❌ Does not read or modify cookies
- ❌ Does not access form data

Technical

Version
1.0.0
Manifest
V3
Size
24.29KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
ohdpihmcfhioiegijmefppebjfdoekmh
Developer ID
u295d9d644824ba5b0ba406bf91281dd7
Developer Email
[email protected]
Created
Oct 8, 2025
Last Updated (Store)
Oct 8, 2025
Last Scraped
Jun 6, 2026
Website
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.