mcp-browser-kit

Connect your AI assistant to local browsers via MCP.

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MCP Browser Kit acts as a server implementing the Model Context Protocol (MCP), allowing AI assistants to securely interact with users' local browsers. It provides browser extension builds for Chrome, Brave, Edge, Firefox, and Safari, supporting different levels of integration. The kit enables AI-driven automation and context-aware interactions within browser environments. Users are advised to isolate browser data for security while leveraging the server's capabilities.

Key Features

Implements Model Context Protocol (MCP) server

Supports Chrome, Brave, Edge, Firefox, and Safari browsers

Provides M2 and M3 extension builds for different functionality levels

Enables AI assistants to command browser actions

Cross-platform local browser integration

User data isolation recommendations for security

Manual extension loading instructions

Detailed compatibility table for browsers

Simplified installation via release packages

Designed for integration with MCP clients

Use Cases

Automating browser actions via AI assistants

Starring repositories on GitHub through AI commands

Context-aware browsing sessions for productivity tools

Secure browser integration with AI model providers

Testing and development of AI-browser interactions

Running browser-based workflows initiated by external models

Interfacing multiple browsers with a single AI assistant

Research and experimentation with browser context protocols

Enabling assistive browsing features for enhanced user experiences

Facilitating custom browser automation in personal or enterprise environments

README

MCP Browser Kit

An MCP Server that enables AI assistants to interact with your local browsers.

Note: Consider using a separate browser profile or dedicated browser instance with this MCP to prevent sensitive data from being unintentionally exposed to AI model providers.

https://github.com/user-attachments/assets/1fbf87fd-06d1-42bf-a06f-cc2bbdf375a8

Usage

Add MCP Browser Kit to your MCP Client:

json

{
	"mcpServers": {
		"browser-kit": {
			"command": "npx",
			"args": ["@mcp-browser-kit/server"]
		}
	}
}

Choose the right extension build for your browser:
- Check the Compatibility table below to see which build (M2 or M3) is compatible with your browser
- Note that M2 builds offer more functionality than M3 builds, so prefer M2 if your browser supports both
Download and unzip the latest compatible build from The Latest Release.
Load the extension into a compatible browser and enable it.
Refresh open tabs to ensure extension scripts are loaded.

Start messaging on your MCP Client:

Use browser-kit, star the last open GitHub repo on my browser

Compatibility table

The M2 build supports more functionalities than the M3 build.

Extension file name patterns:

M2 build: mcp_browser_kit_m2-[version].zip (e.g., mcp_browser_kit_m2-5.0.0.zip)

M3 build: mcp_browser_kit_m3-[version].zip (e.g., mcp_browser_kit_m3-5.0.0.zip)

Browser	M2 build	M3 build
Chrome	❌	✅
Brave	✅	✅
Edge	✅	✅
Firefox	✅	❌
Safari	✅	❌

Load Extension

Chromium-based browsers (Chrome, Brave, Edge)
1. Open chrome://extensions/
2. Enable Developer mode
3. Click Load unpacked
4. Select the unpacked extension folder
Firefox
1. Open about:debugging#/runtime/this-firefox
2. Click Load Temporary Add-on
3. Select the manifest.json file in the unpacked extension folder
Safari
1. Open Develop > Show Extension Builder
2. Click + and select Add Extension
3. Select the unpacked extension folder
4. Click Install to install the extension

Star History

Repository Owner

ndthanhdev

User

Repository Details

Language TypeScript

Default Branch main

Size 1,232 KB

Contributors 2

MCP Verified Sep 5, 2025

Programming Languages

TypeScript

95.38%

4.4%

JavaScript

0.22%

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