Claude Chrome MCP Server

@durapensa

Basic information

About Claude Chrome MCP Server

Developer tool suite enabling Claude Desktop, Claude Code, and other MCP hosts like Cursor, to interact with claude.ai in Chrome browsers.

#chrome-extension #claude-ai #mcp-server

Claude Chrome MCP Server config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

Claude Chrome MCP Server tools

Tool list not available yet

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Overview

What is Claude Chrome MCP?

Claude Chrome MCP is a browser automation tool that lets MCP clients (Claude Desktop, Claude Code, Cursor) interact with claude.ai through a Chrome extension and an MCP server.

How to use Claude Chrome MCP?

Install the Chrome extension from the project’s extension/ directory (load unpacked), then install dependencies with npm install in the mcp-server/ directory. Configure Claude Desktop by adding an MCP server entry with command "node" and args pointing to the absolute path of mcp-server/src/server.js. After restarting Claude Desktop, use natural language commands like “Open a new tab” or “List all open Claude tabs.”

Key features of Claude Chrome MCP

Async message sending with completion detection
Claude-to-Claude response forwarding
Conversation management via Claude.ai API
Network inspection and debugging tools
WebSocket-only architecture with persistent connections
Health monitoring endpoint for relay status

Use cases of Claude Chrome MCP

Automate browser-based interactions with Claude.ai from an MCP client
Open new tabs and send messages programmatically
List all open Claude tabs and search past conversations
Forward responses between multiple Claude instances
Inspect network traffic for debugging purposes

Frequently asked questions

What are the prerequisites?

You need Google Chrome, Node.js v16 or higher, and npm installed.

How do I configure Claude Desktop?

In Claude Desktop settings, go to Developer > Edit Config and add a JSON object with `"command": "node"` and `"args"` pointing to the absolute path of `mcp-server/src/server.js`.

How can I test the connection?

After restarting Claude Desktop, try commands like “Check Chrome status” or “Open a new tab” to verify the server is running.

Is there an optional CLI tool?

Yes, you can install it by running `npm install && npm run build && npm link` in the project root.

What transport does the server use?

It uses a WebSocket relay on port 54321 for persistent connections between the Chrome extension, MCP server, and MCP clients.

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