Is Browser Mcp Cdp free?

Yes, Browser Mcp Cdp is free to use.

How do I install Browser Mcp Cdp?

Browser Mcp Cdp is a local plugin. Install it using npm package: browser-mcp-cdp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What AI apps work with Browser Mcp Cdp?

Browser Mcp Cdp uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Browser Mcp Cdp MCP Server

by Zhiqi Li

Developer ToolsLow Risk10.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

Local Chrome via CDP with profile-snapshot isolation and shared-broker multi-client support

About

Local Chrome via CDP with profile-snapshot isolation and shared-broker multi-client support

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (2 strong, 4 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry.

6 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

file_system

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

Shell Command Execution

Runs commands on your machine. Be cautious — only use if you trust this plugin.

network_websocket

Check that this permission is expected for this type of plugin.

database

Check that this permission is expected for this type of plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-zhiqi-li-browser-mcp-cdp": {
      "args": [
        "-y",
        "browser-mcp-cdp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

browser-mcp-cdp

A Model Context Protocol (MCP) server that drives your real local Chrome via the Chrome DevTools Protocol. Designed for agents that need access to your logged-in sessions (Gmail, internal dashboards, banking, etc.) without uploading credentials to a cloud service.

Why another browser MCP?

Different tradeoffs from the alternatives:

	browser-mcp-cdp	Playwright MCP	Chrome DevTools MCP
Browser	Your local Chrome	Managed Playwright Chromium	Your local Chrome
Login state	✅ Snapshot of your profile (cookies, logins, IndexedDB)	❌ Fresh profile	✅ Real profile (modifies it)
Profile isolation	✅ Copy-on-start, real profile untouched	N/A	⚠️ Direct attach
Multi-client	✅ Shared broker across MCP clients	❌ Per-client	❌ Per-client
Dependencies	Node only (no Playwright download)	Playwright + browsers	Node only

The profile snapshot pattern means you can ask an agent to "check my email" — it sees your Gmail logged in — but the agent's actions never modify your real Chrome profile. Each session gets a disposable copy.

Install

claude mcp add browser -- npx -y browser-mcp-cdp

Or add manually to ~/.claude.json / Claude Desktop config:

{
  "mcpServers": {
    "browser": {
      "command": "npx",
      "args": ["-y", "browser-mcp-cdp"]
    }
  }
}

Requires Node 18+ and Google Chrome installed.

Tools

Tool	Purpose
`browser_navigate`	Load a URL, return final URL + title
`browser_evaluate`	Run JS in the page, return result
`browser_screenshot`	PNG of current page
`browser_click`	Click via CSS selector
`browser_click_at`	Click at pixel coordinates (pierces iframes / overlays)
`browser_fill`	Set value on input/textarea/select
`browser_wait_for`	Wait for a selector to appear
`browser_get_url`	Current URL
`browser_get_text`	Visible text of page or element
`browser_get_html`	`outerHTML` of page or element
`browser_scroll`	Scroll by `(x, y)` pixels
`browser_tabs`	List open tabs
`browser_new_tab`	Open a new tab

Environment variables

Var	Default
`BROWSER_MCP_CHROME_PATH`	Auto-detected per OS
`BROWSER_MCP_CHROME_PROFILE_ROOT`	OS-standard Chrome profile dir
`BROWSER_MCP_BROKER_SOCKET_PATH`	`~/.browser-mcp/broker.sock`
`BROWSER_MCP_BROKER_LOCK_PATH`	`~/.browser-mcp/broker.lock`
`BROWSER_MCP_BROKER_IDLE_TIMEOUT_MS`	`600000` (10 min)

How it works

First MCP client connection spawns a broker subprocess (detached).
Broker copies your Chrome profile's cookies/local storage/login data to a temp dir.
Broker launches Chrome with --user-data-dir=<temp> and --remote-debugging-port.
Subsequent MCP clients connect to the same broker over a Unix socket → they share one Chrome.
Broker exits after BROKER_IDLE_TIMEOUT_MS of no activity; temp profile is deleted.

Security

This server lets an LLM execute arbitrary JavaScript in a browser that is logged into your accounts. Only use with models and prompts you trust. Profile snapshotting limits damage (no persistent mutations to your real Chrome), but the agent can read cookies, session tokens, and any data visible to logged-in you for the duration of the session.

License

MIT

Reviews

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Browser Mcp Cdp MCP Server

About

Security Report

Findings (1)

Permissions Required

How to Install

Documentation

browser-mcp-cdp

Why another browser MCP?

Install

Tools

Environment variables

How it works

Security

License

Reviews

No reviews yet

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