MCP Puppeteer Server

A Model Context Protocol (MCP) server that provides Claude Code with comprehensive browser automation capabilities through Puppeteer. This server allows Claude to interact with web pages, take screenshots, execute JavaScript, and perform various browser automation tasks.

🚀 Quick Start

Want browser automation in Claude Code? Run this one command:

claude mcp add puppeteer-mcp-claude

Alternative - works for both Claude Desktop & Claude Code:

npx puppeteer-mcp-claude install

That's it! The installer will automatically:

• Detect Claude Desktop and Claude Code on your system
• Configure both applications with browser automation tools
• Verify everything works across all detected Claude apps

Then restart your Claude apps and ask: "Take a screenshot of google.com" to test it out!

🖥️ Cross-Platform Support

• macOS: Claude Desktop + Claude Code
• Linux: Claude Desktop + Claude Code
• Windows: Claude Code only

Features

• Browser Management: Launch and close Chrome/Chromium browsers
• Page Operations: Create, navigate, and manage multiple browser tabs
• Element Interaction: Click, type, and extract text from web elements
• JavaScript Execution: Run custom JavaScript code in the browser context
• Screenshot Capture: Take full-page or viewport screenshots
• Selector Waiting: Wait for elements to appear with configurable timeouts
• Multi-page Support: Manage multiple browser tabs simultaneously

Available Tools

Tool	Description
puppeteer_launch	Launch a new browser instance
puppeteer_new_page	Create a new browser tab
puppeteer_navigate	Navigate to a URL
puppeteer_click	Click on an element
puppeteer_type	Type text into an input field
puppeteer_get_text	Extract text from an element
puppeteer_screenshot	Take a screenshot
puppeteer_evaluate	Execute JavaScript code
puppeteer_wait_for_selector	Wait for an element to appear
puppeteer_close_page	Close a specific tab
puppeteer_close_browser	Close the entire browser

Installation

🚀 Automatic Setup (Recommended)

Get browser automation in all your Claude apps with just one command:

npx puppeteer-mcp-claude install

What happens automatically:

1. ✅ Downloads the latest version from npm
2. ✅ Detects Claude Desktop and Claude Code on your system
3. ✅ Configures both applications automatically
4. ✅ Creates config files if needed (cross-platform paths)
5. ✅ Verifies everything is working correctly
6. ✅ Shows you exactly what to do next

Cross-platform detection:

• macOS: ~/Library/Application Support/Claude/ (Desktop) + ~/.claude/ (Code)
• Linux: ~/.config/Claude/ (Desktop) + ~/.claude/ (Code)
• Windows: ~/.claude/ (Code only)

After installation:

• Restart any running Claude applications
• Ask Claude: "List all available tools"
• You'll see 11 new puppeteer tools for browser automation!

No manual configuration needed! The installer handles everything across all platforms.

Manual Installation

If you prefer to install manually:

1. Install the package globally:

   npm install -g puppeteer-mcp-claude

2. Configure for Claude Code:

   puppeteer-mcp-claude install

Development Installation

For development or contribution:

1. Clone and install dependencies:

   git clone https://github.com/jaenster/puppeteer-mcp-claude.git
   cd puppeteer-mcp-claude
   npm install

2. Build the project:

   npm run build

3. Use local setup script:

   npm run setup-mcp

Management Commands

Command	Description
npx puppeteer-mcp-claude install	Install and configure for Claude Desktop & Code
npx puppeteer-mcp-claude uninstall	Remove from all Claude applications
npx puppeteer-mcp-claude status	Check installation status across all apps
npx puppeteer-mcp-claude help	Show help and available tools

Alternative Installation Methods

Method 1: Using Claude Code MCP Command (Recommended)

Configure this server using Claude Code's built-in MCP management:

claude mcp add puppeteer-mcp-claude

Method 2: Manual Configuration

Create or edit ~/.claude/claude_desktop_config.json:

{
  "mcpServers": {
    "puppeteer-mcp-claude": {
      "command": "npx",
      "args": ["puppeteer-mcp-claude", "serve"],
      "env": {
        "NODE_ENV": "production"
      }
    }
  }
}

Post-Installation Steps

1. Restart Claude Code if it's currently running
2. Test the integration:

   npm run test:integration

3. Verify in Claude Code by asking: "List all available tools"

You should see the Puppeteer tools listed among the available tools.

Usage Examples

Basic Web Automation

// Launch browser
await puppeteer_launch({ headless: false });

// Create a new page
await puppeteer_new_page({ pageId: "main" });

// Navigate to a website
await puppeteer_navigate({ 
  pageId: "main", 
  url: "https://example.com" 
});

// Take a screenshot
await puppeteer_screenshot({ 
  pageId: "main", 
  path: "screenshot.png" 
});

Form Interaction

// Type into a search field
await puppeteer_type({ 
  pageId: "main", 
  selector: "input[name='search']", 
  text: "Claude AI" 
});

// Click a button
await puppeteer_click({ 
  pageId: "main", 
  selector: "button[type='submit']" 
});

// Wait for results to load
await puppeteer_wait_for_selector({ 
  pageId: "main", 
  selector: ".search-results" 
});

Data Extraction

// Extract text from an element
await puppeteer_get_text({ 
  pageId: "main", 
  selector: "h1" 
});

// Execute custom JavaScript
await puppeteer_evaluate({ 
  pageId: "main", 
  script: "document.querySelectorAll('a').length" 
});

Configuration Options

Browser Launch Options

• headless: Run browser in headless mode (default: true)
• args: Array of Chrome arguments (e.g., ["--disable-web-security"])

Navigation Options

• waitUntil: Wait condition for navigation
  • load: Wait for load event
  • domcontentloaded: Wait for DOM content loaded
  • networkidle0: Wait for no network activity
  • networkidle2: Wait for max 2 network connections

Screenshot Options

• path: File path to save screenshot
• fullPage: Capture full page scroll height (default: false)

Management Commands

Command	Description
npm run setup-mcp	Automatically configure MCP server
npm run remove-mcp	Remove MCP server configuration
npm run status-mcp	Check current configuration status
npm run test:integration	Test the MCP server integration

Troubleshooting

Common Issues

1. Claude Code doesn't see the tools:

   • Ensure Claude Code is restarted after configuration
   • Check that the path in claude_desktop_config.json is correct
   • Verify the MCP server is configured properly with npm run status-mcp

2. "Browser not launched" errors:

   • Always call puppeteer_launch before using other tools
   • Make sure the browser launch was successful

3. Element not found errors:

   • Use puppeteer_wait_for_selector before interacting with elements
   • Verify selectors are correct using browser developer tools

4. Permission errors:

   • Make sure the project directory has proper permissions
   • Check that ts-node is installed and accessible

Debug Mode

For debugging, you can run the server in development mode:

npm run dev

This will show detailed logs of all MCP operations.

Testing

Run the test suite to verify everything is working:

npm test

For integration testing with Claude Code:

npm run test:integration

Security Considerations

• The server runs with the same permissions as the user
• Browser instances are automatically cleaned up on exit
• All JavaScript execution happens in the browser context, not the Node.js process
• Network requests are subject to the same security policies as a regular Chrome browser

Requirements

• Node.js 16 or higher
• Chrome/Chromium browser (automatically downloaded by Puppeteer)
• Claude Code with MCP support
• TypeScript support (ts-node)

Support

If you encounter issues:

1. Check the troubleshooting section above
2. Verify your configuration with npm run status-mcp
3. Run the integration tests with npm run test:integration
4. Check Claude Code logs for MCP-related errors

For additional help, refer to the Claude Code MCP documentation.