MCP Chrome Integration

A protocol that enables AI models to control Chrome browser and perform web automation.

- Python 3.12
- Google Chrome browser extension installed (websocket client)
- uv (Python package installer) or Docker

To install Chrome Browser Automation Server for Claude Desktop automatically viaSmithery:

npx -y @smithery/cli install @dlwjdtn535/mcp-chrome-integration --client claude

{ "mcpServers": { "mcp-chrome-integration": { "command": "uv", "args": [ "run", "--directory", "%LOCALAPPDATA%\\Programs\\mcp-chrome-integration\\src", "mcp-server" ], "env": { "WEBSOCKET_PORT": "8012" } } } }

{ "mcpServers": { "mcp-chrome-integration": { "command": "uv", "args": [ "run", "--directory", "/usr/local/bin/mcp-chrome-integration/src", "mcp-server" ], "env": { "WEBSOCKET_PORT": "8012" } } } }

{ "mcpServers": { "mcp-chrome-integration": { "command": "uv", "args": [ "run", "--directory", "/usr/local/bin/mcp-chrome-integration/src", "mcp-server" ], "env": { "WEBSOCKET_PORT": "8012" } } } }

- URL Navigation
- Element Clicking
- Text Input
- Form Filling
- Page Scrolling
- Table Data Extraction
- JavaScript Code Execution

- Get Element Information (dimensions, styles, visibility)
- Wait for Elements
- Change Background Colors
- Get Page State and Content

- Get HTML Content
- Count Links
- Extract Meta Tags
- Get Image Information
- Form Analysis
- Page Content Streaming

- Get System Information
- Access Geolocation
- Monitor Power/Battery Status
- Take Screenshots

# Navigate to URL tool_navigate_to(url="https://example.com", tab_id="your_tab_id") # Click Element tool_click_element(selector="#submit-button", tab_id="your_tab_id") # Type Text tool_type_text(selector="#search", text="query", tab_id="your_tab_id") # Check Page State tool_state(tab_id="your_tab_id") # Execute JavaScript tool_execute_script(script="console.log('Hello')", tab_id="your_tab_id") # Extract Table Data tool_extract_table(selector=".data-table", tab_id="your_tab_id") # Get Element Info tool_get_element_info(selector=".my-element", tab_id="your_tab_id")

- Does not work on chrome:// URLs
- Only works on regular websites (http:// or https://)
- Some websites' Content Security Policy (CSP) may restrict certain operations
- Consider website's CSP when executing JavaScript

- tab_id required for all operations
- Use tool_tab_list() to check available tabs
- Check tab state before operations

- Check return values for success/failure status
- Handle timeouts for wait operations
- Consider website loading state

1. Chrome Extension Installation & Setup

# Navigate to extension directory cd mcp-client

- Open Chrome browser
- Enterchrome://extensions/in address bar
- Enable "Developer mode" toggle in top-right
- Click "Load unpacked" button in top-left
- Select themcp-clientdirectory

- Click MCP extension icon in Chrome toolbar
- Enter server URL (default:ws://localhost:8012)
- Click "Connect" button to connect to server
- Connection status should change to "Connected"

- Works automatically in connected tabs
- For new tabs, click extension icon and connect
- Monitor operations in log window
- Click "Disconnect" to end connection

# Navigate to server directory cd mcp-server # Install dependencies pip install -r requirements.txt # Start server python src/server.py

- Server URL Configuration
- Connect/Disconnect Button
- Current Tab Status
- Log Message Viewer

- Tab Management
- WebSocket Connection Maintenance
- Automatic Reconnection
- Error Recovery

- HTTPS Support
- CSP Compliance
- Secure Script Execution
- Permission Management

- Log Viewing in Developer Tools
- Detailed Error Messages
- Network Communication Monitoring
- Execution State Tracking

- Verify Server URL
- Check Server Status
- Check Firewall Settings
- Verify WebSocket Port (8012) Availability

- Check CSP Restrictions
- Grant Required Permissions
- Review Console Error Messages
- Validate Tab IDs

- Monitor Memory Usage
- Disconnect Unused Tabs
- Adjust Status Update Frequency
- Optimize Large Data Processing

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