Chrome MCP Server

Chrome MCP Server 🚀

🌟 Turn your Chrome browser into your intelligent assistant - Let AI take control of your browser, transforming it into a powerful AI-controlled automation tool.

📖 Documentation: English | 中文

The project is still in its early stages and is under intensive development. More features, stability improvements, and other enhancements will follow.

🎯 What is Chrome MCP Server?

Chrome MCP Server is a Chrome extension-based Model Context Protocol (MCP) server that exposes your Chrome browser functionality to AI assistants like Claude, enabling complex browser automation, content analysis, and semantic search. Unlike traditional browser automation tools (like Playwright), Chrome MCP Server directly uses your daily Chrome browser, leveraging existing user habits, configurations, and login states, allowing various large models or chatbots to take control of your browser and truly become your everyday assistant.

✨ Core Features

😁 Chatbot/Model Agnostic: Let any LLM or chatbot client or agent you prefer automate your browser
⭐️ Use Your Original Browser: Seamlessly integrate with your existing browser environment (your configurations, login states, etc.)
💻 Fully Local: Pure local MCP server ensuring user privacy
🚄 Streamable HTTP: Streamable HTTP connection method
🏎 Cross-Tab: Cross-tab context
🧠 Semantic Search: Built-in vector database for intelligent browser tab content discovery
🔍 Smart Content Analysis: AI-powered text extraction and similarity matching
🌐 20+ Tools: Support for screenshots, network monitoring, interactive operations, bookmark management, browsing history, and 20+ other tools
🚀 SIMD-Accelerated AI: Custom WebAssembly SIMD optimization for 4-8x faster vector operations

🆚 Comparison with Similar Projects

Comparison Dimension	Playwright-based MCP Server	Chrome Extension-based MCP Server
Resource Usage	❌ Requires launching independent browser process, installing Playwright dependencies, downloading browser binaries, etc.	✅ No need to launch independent browser process, directly utilizes user's already open Chrome browser
User Session Reuse	❌ Requires re-login	✅ Automatically uses existing login state
Browser Environment	❌ Clean environment lacks user settings	✅ Fully preserves user environment
API Access	⚠️ Limited to Playwright API	✅ Full access to Chrome native APIs
Startup Speed	❌ Requires launching browser process	✅ Only needs to activate extension
Response Speed	50-200ms inter-process communication	✅ Faster

🚀 Quick Start

Prerequisites

Node.js >= 18.19.0 and pnpm/npm
Chrome/Chromium browser

Installation Steps

Download the latest Chrome extension from GitHub

Download link: https://github.com/hangwin/mcp-chrome/releases

Install mcp-chrome-bridge globally

npm

npm install -g mcp-chrome-bridge

pnpm

# Method 1: Enable scripts globally (recommended)
pnpm config set enable-pre-post-scripts true
pnpm install -g mcp-chrome-bridge

# Method 2: Manual registration (if postinstall doesn't run)
pnpm install -g mcp-chrome-bridge
mcp-chrome-bridge register

Note: pnpm v7+ disables postinstall scripts by default for security. The enable-pre-post-scripts setting controls whether pre/post install scripts run. If automatic registration fails, use the manual registration command above.

Load Chrome Extension
- Open Chrome and go to chrome://extensions/
- Enable "Developer mode"
- Click "Load unpacked" and select your/dowloaded/extension/folder
- Click the extension icon to open the plugin, then click connect to see the MCP configuration

Usage with MCP Protocol Clients

Using Streamable HTTP Connection (👍🏻 Recommended)

Add the following configuration to your MCP client configuration (using CherryStudio as an example):

Streamable HTTP connection method is recommended

{
  "mcpServers": {
    "chrome-mcp-server": {
      "type": "streamableHttp",
      "url": "http://127.0.0.1:12306/mcp"
    }
  }
}

Using STDIO Connection (Alternative)

If your client only supports stdio connection method, please use the following approach:

First, check the installation location of the npm package you just installed

# npm check method
npm list -g mcp-chrome-bridge
# pnpm check method
pnpm list -g mcp-chrome-bridge

Assuming the command above outputs the path: /Users/xxx/Library/pnpm/global/5 Then your final path would be: /Users/xxx/Library/pnpm/global/5/node_modules/mcp-chrome-bridge/dist/mcp/mcp-server-stdio.js

Replace the configuration below with the final path you just obtained

{
  "mcpServers": {
    "chrome-mcp-stdio": {
      "command": "npx",
      "args": [
        "node",
        "/Users/xxx/Library/pnpm/global/5/node_modules/mcp-chrome-bridge/dist/mcp/mcp-server-stdio.js"
      ]
    }
  }
}

eg：config in augment:

🛠️ Available Tools

Complete tool list: Complete Tool List

get_windows_and_tabs - List all browser windows and tabs
chrome_navigate - Navigate to URLs and control viewport
chrome_close_tabs - Close specific tabs or windows
chrome_go_back_or_forward - Browser navigation control
chrome_inject_script - Inject content scripts into web pages
chrome_send_command_to_inject_script - Send commands to injected content scripts

chrome_screenshot - Advanced screenshot capture with element targeting, full-page support, and custom dimensions

chrome_network_capture_start/stop - webRequest API network capture
chrome_network_debugger_start/stop - Debugger API with response bodies
chrome_network_request - Send custom HTTP requests

search_tabs_content - AI-powered semantic search across browser tabs
chrome_get_web_content - Extract HTML/text content from pages
chrome_get_interactive_elements - Find clickable elements
chrome_console - Capture and retrieve console output from browser tabs

chrome_click_element - Click elements using CSS selectors
chrome_fill_or_select - Fill forms and select options
chrome_keyboard - Simulate keyboard input and shortcuts

chrome_history - Search browser history with time filters
chrome_bookmark_search - Find bookmarks by keywords
chrome_bookmark_add - Add new bookmarks with folder support
chrome_bookmark_delete - Delete bookmarks

🧪 Usage Examples

AI helps you summarize webpage content and automatically control Excalidraw for drawing

prompt: excalidraw-prompt Instruction: Help me summarize the current page content, then draw a diagram to aid my understanding. https://www.youtube.com/watch?v=3fBPdUBWVz0

https://github.com/user-attachments/assets/fd17209b-303d-48db-9e5e-3717141df183

After analyzing the content of the image, the LLM automatically controls Excalidraw to replicate the image

prompt: excalidraw-prompt|content-analize Instruction: First, analyze the content of the image, and then replicate the image by combining the analysis with the content of the image. https://www.youtube.com/watch?v=tEPdHZBzbZk

https://github.com/user-attachments/assets/60d12b1a-9b74-40f4-994c-95e8fa1fc8d3

AI automatically injects scripts and modifies webpage styles

prompt: modify-web-prompt Instruction: Help me modify the current page's style and remove advertisements. https://youtu.be/twI6apRKHsk

https://github.com/user-attachments/assets/69cb561c-2e1e-4665-9411-4a3185f9643e

AI automatically captures network requests for you

query: I want to know what the search API for Xiaohongshu is and what the response structure looks like

https://youtu.be/1hHKr7XKqnQ

https://github.com/user-attachments/assets/063f44ae-1754-46b6-b141-5988c86e4d96

AI helps analyze your browsing history

query: Analyze my browsing history from the past month

https://youtu.be/jf2UZfrR2Vk

https://github.com/user-attachments/assets/e7a35118-e50e-4b1c-a790-0878aa2505ab

Web page conversation

query: Translate and summarize the current web page https://youtu.be/FlJKS9UQyC8

https://github.com/user-attachments/assets/08aa86aa-7706-4df2-b400-576e2c7fcc7f

AI automatically takes screenshots for you (web page screenshots)

query: Take a screenshot of Hugging Face's homepage https://youtu.be/7ycK6iksWi4

https://github.com/user-attachments/assets/b081e41b-6309-40d6-885b-0da01691b12e

AI automatically takes screenshots for you (element screenshots)

query: Capture the icon from Hugging Face's homepage https://youtu.be/ev8VivANIrk

https://github.com/user-attachments/assets/25657076-b84b-4459-a72f-90f896f06364

AI helps manage bookmarks

query: Add the current page to bookmarks and put it in an appropriate folder

https://youtu.be/R_83arKmFTo

https://github.com/user-attachments/assets/73c1ea26-65fb-4b5e-b537-e32fa9bcfa52

Automatically close web pages

query: Close all shadcn-related web pages

https://youtu.be/2wzUT6eNVg4

https://github.com/user-attachments/assets/ff160f48-58e0-4c76-a6b0-c4e1f91370c8

🤝 Contributing

We welcome contributions! Please see CONTRIBUTING.md for detailed guidelines.

🚧 Future Roadmap

We have exciting plans for the future development of Chrome MCP Server:

Authentication
Recording and Playback
Workflow Automation
Enhanced Browser Support (Firefox Extension)

Want to contribute to any of these features? Check out our Contributing Guide and join our development community!

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

📚 More Documentation

Architecture Design - Detailed technical architecture documentation
TOOLS API - Complete tool API documentation
Troubleshooting - Common issue solutions

This server cannot be installed

security - not tested

license - permissive license

quality - not tested

How are these scores calculated?

local-only server

The server can only run on the client's local machine because it depends on local resources.

A Chrome extension-based Model Context Protocol server that enables AI assistants to control your browser, leveraging your existing configurations and login states for complex automation, content analysis, and semantic search.

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