Mcp Browser Agent

@yubao2000

About Mcp Browser Agent

让 AI Agent（Claude/ChatGPT/Codex）像人一样操作浏览器。36个工具：截图、点击、填表、提取、PDF导出、签页管理、Cookie持久化、批量自动化。开源免费，npm 全局安装即用。

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "browser-agent": {
      "command": "mcp-browse-agent",
      "args": []
    }
  }
}

Tools

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Overview

What is Mcp Browser Agent?

A Model Context Protocol (MCP) server that enables AI agents (such as Claude or GPT) to control a browser like a human. It provides a set of tools for navigation, interaction, data extraction, and tab management, making it suitable for developers who want to automate browser tasks through AI assistants.

How to use Mcp Browser Agent?

Install the package globally via npm (npm install -g @yubao2000/mcp-browser-agent), then start the server with the command mcp-browse-agent. Configure it in supporting MCP clients (Claude Desktop, Cursor, or OpenAI Codex) by adding a new server entry pointing to the same command. A configuration file .mcp-browser.json can be used to set options like viewport, headless mode, and data directory.

Key features of Mcp Browser Agent

30 tools for navigation, clicking, filling forms, and scrolling
Extract text, HTML, screenshots, and PDFs from pages
Manage tabs: open, switch, close, and iframe contexts
Execute custom JavaScript and retrieve console logs
Cookie persistence for maintaining login sessions
Optional visible browser window for debugging or manual intervention

Use cases of Mcp Browser Agent

Automate web form filling and login workflows with AI
Scrape structured data from multiple pages and export results
Monitor website changes by capturing periodic screenshots
Test web application behavior by simulating user actions
Perform research tasks that require multi-step browsing (e.g., search, extract, navigate)

FAQ from Mcp Browser Agent

What are the system requirements?

Node.js version 18 or higher is required. The server runs headless by default but can display a browser window when configured.

How are cookies managed?

Cookies are automatically saved to ./.browser-data/cookies.json and restored on restart, allowing sessions to persist across agent runs.

Can I see what the AI is doing in the browser?

Yes. Set the environment variable SHOW_BROWSER=true or add "showBrowser": true to .mcp-browser.json to make the browser window visible for debugging, captcha handling, or demos.

Does the server support concurrent browser instances?

The free version supports one concurrent tab; the Pro version (upcoming, $9.9/month) supports up to 10 concurrent tabs along with batch automation and encrypted cookie backups.

Where does browser data (cookies, profiles) get stored?

By default, data is stored in the ./.browser-data directory. This location can be changed via the dataDir configuration option or BROWSER_DATA_DIR environment variable.

Frequently asked questions

What are the system requirements?

Node.js version 18 or higher is required. The server runs headless by default but can display a browser window when configured.

How are cookies managed?

Cookies are automatically saved to `./.browser-data/cookies.json` and restored on restart, allowing sessions to persist across agent runs.

Can I see what the AI is doing in the browser?

Yes. Set the environment variable `SHOW_BROWSER=true` or add `"showBrowser": true` to `.mcp-browser.json` to make the browser window visible for debugging, captcha handling, or demos.

Does the server support concurrent browser instances?

The free version supports one concurrent tab; the Pro version (upcoming, $9.9/month) supports up to 10 concurrent tabs along with batch automation and encrypted cookie backups.

Where does browser data (cookies, profiles) get stored?

By default, data is stored in the `./.browser-data` directory. This location can be changed via the `dataDir` configuration option or `BROWSER_DATA_DIR` environment variable.

Comments

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