Enables AI assistants to interact with the local Brave browser, allowing them to automate tasks and manage content across open tabs.
Enables AI assistants to interact with the local Firefox browser, allowing them to automate tasks and manage content across open tabs.
Allows AI assistants to interact with GitHub through the browser, enabling actions such as starring repositories directly from the assistant.
Enables AI assistants to interact with the local Safari browser, allowing them to automate tasks and manage content across open tabs.
MCP Browser Kit
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An MCP Server that enables AI assistants to interact with your local browsers.
https://github.com/user-attachments/assets/1fbf87fd-06d1-42bf-a06f-cc2bbdf375a8
Usage
Add MCP Browser Kit to your MCP Client:
{ "mcpServers": { "browser-kit": { "command": "npx", "args": ["@mcp-browser-kit/server@latest"] } } }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 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 browserOptional, check User Notes for more information.
Compatibility table
The M2 build supports more functionalities than the M3 build. Extension file name patterns:
M2 build:
Chromium:
mcp_browser_kit_m2-<version>.zip(e.g.,mcp_browser_kit_m2-5.0.0.zip)Firefox:
mcp_browser_kit_m2-<version>.xpi(e.g.,mcp_browser_kit_m2-5.0.0.xpi)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)
Unzip the downloaded
.zipfileOpen chrome://extensions/
Enable
Developer modeClick
Load unpackedSelect the unpacked extension folder
Firefox
Open about:addons
Click the gear icon and select
Install Add-on From FileSelect the downloaded
.xpifile
Safari
Unzip the downloaded
.zipfileOpen
Develop > Show Extension BuilderClick
+and selectAdd ExtensionSelect the unpacked extension folder
Click
Installto install the extension
User Notes
Note for Alpha stage: 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.
Security: BrowserKit currently lacks authentication for incoming requests. Keep ports 59089 and 2769-2799 on your device network only.