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SHAFT MCP

SHAFT MCP is a web automation and testing server that integrates the Selenium-based SHAFT Engine with Claude, enabling AI-powered browser control, data extraction, and element interaction via natural language.

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Dec 22, 2025
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SHAFT MCP Server Setup Guide

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What is SHAFT MCP?

SHAFT MCP is a Model Context Protocol (MCP) server that enables Claude Desktop to perform web automation tasks using the SHAFT Engine (a Selenium-based test automation framework). This gives Claude powerful browser automation capabilities including:

Core Features

  • Browser Control: Launch Chrome, Firefox, Safari, or Edge browsers
  • Element Interaction: Click, hover, type, clear, drag-and-drop elements
  • AI-Enhanced Element Detection: Find elements by natural language descriptions
  • Advanced Actions: JavaScript-based clicks, file uploads, cookie management
  • Browser Navigation: URL navigation, back/forward, refresh
  • Data Extraction: Get page source, element text, attributes, CSS values
  • Test Reporting: Generate detailed Allure test reports

Available MCP Tools

The server provides 25+ tools for web automation:

Browser Management:

  • driver_initialize - Launch browser (Chrome/Firefox/Safari/Edge)
  • driver_quit - Close browser
  • browser_navigate - Navigate to URL
  • browser_refresh - Refresh page
  • browser_navigate_back/forward - Browser history navigation
  • browser_maximize_window - Maximize browser window
  • browser_set_window_size - Set custom window size
  • browser_fullscreen_window - Set fullscreen mode

Element Interaction:

  • element_click - Click elements using locators (ID, CSS, XPath, etc.)
  • element_click_ai - Click elements using AI (natural language)
  • element_click_js - JavaScript-based clicking
  • element_double_click - Double-click elements
  • element_hover - Hover over elements
  • element_type - Type text into elements
  • element_type_ai - Type using AI element detection
  • element_append_text - Append text to existing content
  • element_clear - Clear text from input fields
  • element_drag_and_drop - Drag and drop between elements
  • element_drop_file_to_upload - File upload functionality

Data Extraction:

  • element_get_text - Get element text content
  • element_get_dom_attribute - Get DOM attributes
  • element_get_dom_property - Get DOM properties
  • element_get_css_value - Get CSS property values
  • element_is_displayed/enabled/selected - Check element states
  • browser_get_page_source - Get page HTML source
  • browser_get_current_url - Get current URL
  • browser_get_title - Get page title

Session Management:

  • browser_add_cookie - Add cookies
  • browser_get_cookie - Get specific cookie
  • browser_get_all_cookies - Get all cookies
  • browser_delete_cookie - Delete specific cookie
  • browser_delete_all_cookies - Clear all cookies
  • generate_test_report - Generate Allure test reports

Distribution

SHAFT MCP is available through multiple channels:

  • GitHub MCP Registry: Officially listed in the Model Context Protocol Registry as io.github.ShaftHQ/shaft-mcp
  • Maven Central: Available as a Java JAR at io.github.shafthq:SHAFT_MCP
  • GitHub Container Registry: Docker images available at ghcr.io/shafthq/shaft-mcp
  • Smithery.ai: Deploy via Smithery for hosted MCP server (see SMITHERY_DEPLOYMENT.md)

Deployment Options

SHAFT MCP supports two deployment modes:

1. Local Deployment (Claude Desktop)

Uses STDIO transport for direct integration with Claude Desktop application. See setup instructions below.

2. Remote Deployment (Smithery & Web)

Uses HTTP/SSE transport for web-based access and remote hosting platforms like Smithery.ai, Railway, Render, etc.

📖 For Smithery and remote deployment instructions, see the comprehensive Smithery Deployment Guide which includes:

  • Step-by-step Smithery deployment
  • Local testing with Docker
  • 10+ alternative hosting platforms comparison
  • Configuration options and best practices

Prerequisites

  • Claude Desktop App (latest version)
  • Java 21 (OpenJDK 21.0.2 LTS or newer) - for JAR-based installation
  • OR Docker - for Docker-based installation
  • Maven (only if building from source)

Setup Instructions

You can install SHAFT MCP using either the JAR file or Docker container:

Option A: Using Docker (Recommended)

  1. Close Claude Desktop completely if it's running

  2. Pull the Docker image:

docker pull ghcr.io/shafthq/shaft-mcp:latest

  1. Locate your Claude config file:

    • Windows: C:\Users\{USERNAME}\AppData\Roaming\Claude\claude_desktop_config.json
    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
    • Linux: ~/.config/Claude/claude_desktop_config.json

  2. Edit the config file and add the SHAFT MCP server configuration:

{
  "mcpServers": {
    "shaft-mcp": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "ghcr.io/shafthq/shaft-mcp:latest"
      ]
    }
  }
}

Option B: Using JAR File

Step 1: Build the MCP Server

  1. Navigate to your SHAFT_MCP repository directory:
cd /path/to/ShaftHQ/SHAFT_MCP
  1. Build the project (this creates the JAR file):
mvn clean package -DskipTests -Dgpg.skip

This will create: target/SHAFT_MCP-9.4.20251108.jar

Step 2: Configure Claude Desktop

  1. Close Claude Desktop completely if it's running

  2. Locate your Claude config file:

    • Windows: C:\Users\{USERNAME}\AppData\Roaming\Claude\claude_desktop_config.json
    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
    • Linux: ~/.config/Claude/claude_desktop_config.json

  3. Edit the config file and add the SHAFT MCP server configuration:

{
  "mcpServers": {
    "shaft-mcp": {
      "command": "java",
      "args": [
        "-jar",
        "/FULL/PATH/TO/SHAFT_MCP/target/SHAFT_MCP-9.4.20251108.jar"
      ]
    }
  }
}

Important Notes:

  • Replace /FULL/PATH/TO/SHAFT_MCP/ with the actual absolute path to your repository
  • Ensure the JAR file version matches what was built (check the target/ directory)
  • Use forward slashes / even on Windows, or double backslashes \\\\ for Windows paths

Verify Installation

  1. Start Claude Desktop

  2. Check MCP Server Status:

    • Go to File > Settings > Developer
    • Look for shaft-mcp in the MCP servers list
    • Confirm the status shows as running

  3. Test the server with this prompt in Claude:

Use shaft-mcp to launch Chrome, navigate to google.com, search for "selenium webdriver", and get the page title.

Usage Examples

Once configured, you can use Claude to perform complex web automation tasks:

Basic Browser Control

Use shaft-mcp to:
1. Launch Firefox browser
2. Navigate to https://example.com
3. Get the page title and current URL

Element Interaction

Use shaft-mcp to:
1. Launch Chrome
2. Go to a login page
3. Find the username field and type "testuser"
4. Find the password field and type "testpass"
5. Click the login button

AI-Enhanced Element Detection

Use shaft-mcp to:
1. Open a browser and go to amazon.com
2. Click on the search box using AI
3. Type "laptop" in the search field
4. Click the search button using AI

Data Extraction

Use shaft-mcp to:
1. Navigate to a news website
2. Get all the article headlines
3. Extract the main content text
4. Generate a test report

Troubleshooting

Common Issues:

  1. "No active browser session found"

    • Always initialize a browser first using driver_initialize

  2. MCP Server not running

    • Verify the JAR file path is correct and absolute
    • Check that Java 21 is installed and accessible
    • Ensure Claude Desktop was restarted after config changes

  3. Build failures

    • Verify Java 21 is installed: java -version
    • Ensure Maven is available: mvn -version
    • Try cleaning first: mvn clean

  4. Element not found errors

    • Use AI-based element detection (element_click_ai, element_type_ai)
    • Try different locator strategies (CSS, XPath, ID, etc.)
    • Check if the element is visible with element_is_displayed

Advanced Configuration

You can add additional MCP servers alongside SHAFT MCP:

{
  "mcpServers": {
    "shaft-mcp": {
      "command": "java",
      "args": ["-jar", "/path/to/SHAFT_MCP-9.4.20251108.jar"]
    },
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "your_token_here"
      }
    }
  }
}

What This Enables

With SHAFT MCP configured, Claude can:

  • Automate web testing - Run comprehensive test suites on web applications
  • Perform web scraping - Extract data from websites with complex interactions
  • Automate repetitive tasks - Fill forms, upload files, navigate workflows
  • Generate test reports - Create detailed Allure reports with screenshots and logs
  • Cross-browser testing - Test across Chrome, Firefox, Safari, and Edge
  • AI-powered element detection - Find elements by description instead of technical locators

This essentially turns Claude into a powerful web automation assistant that can handle complex browser-based tasks that would normally require manual effort or custom scripting.

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