OpenDigger MCP Server

A Model Context Protocol (MCP) server for OpenDigger enabling advanced repository analytics and insights through tools and prompts.

Quick Start

# Setup
git clone https://github.com/X-lab2017/open-digger-mcp-server.git

# (Optional) Ensure you're on the master branch
git checkout master

cd open-digger-mcp-server && cd mcp-server
npm install
npm run build

# Start server
npm start

Important

Don't forget to configure Cursor (update path in .cursor/mcp.json)

Expected output:

OpenDigger MCP Server running (on stdio)...

Important

If you are using Cursor AI IDE, you should see the MCP server (open-digger-mcp) toast in the bottom-left corner. You should enable it, & now you can start using the tools and prompts provided by the MCP server. To verify, open Cursor Settings and check the MCP Servers section → you should see open-digger-mcp listed there.

To further confirm that the server is functioning correctly, you can check the following indicators in Cursor:

• ✅ Green dot next to "open-digger-mcp" title
• ✅ "6 tools" displayed in server status
• ✅ "3 prompts" displayed in server status
• ✅ No error messages or red indicators

Tip

Please refer to Installation.md for detailed installation instructions and configuration options for different IDEs.

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Features

Tools (6 Available)

No.	Tool	Description
1	get_open_digger_metric	Fetch single repository metrics
2	get_open_digger_metrics_batch	Batch operations for multiple metrics
3	compare_repositories	Multi-repository comparative analysis
4	analyze_trends	Growth trend analysis over time periods
5	get_ecosystem_insights	Ecosystem analytics & insights
6	server_health	System diagnostics and health monitoring (Beta)

Prompts (3 Available)

1. repo_health_analysis - Comprehensive repository health reports
2. repo_comparison - Competitive repository analysis
3. developer_insights - Developer activity and contribution analysis

Metrics

• Core Metrics: openrank, stars, forks, contributors, participants, issues_new, issues_closed, pull_requests, commits, activity

• Extended Metrics: technical_fork, bus_factor, releases, inactive_contributors, maintainer_count, community_activity

• Additional Metrics: change_requests, pull_requests_accepted, pull_requests_merged, issue_comments, issue_response_time, code_change_lines, developer_network

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💡 Usage Examples

💠 Repository Comparison

Compare microsoft/vscode and facebook/react using the compare_repositories tool

💠 Health Analysis

Generate a health report for microsoft/vscode using the repo_health_analysis prompt

💠 Trend Analysis

Analyze the growth trends for contributors in microsoft/vscode over 2 years

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Server Status Check

After starting the server, verify it's working:

# In a new terminal
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}' | node dist/index.js

Expected response should list all 6 tools.

Configuration

Environment Variables (.env)

# Cache configuration (recommended)
CACHE_TTL_SECONDS=300

# Optional SSE server
SSE_PORT=3001
SSE_HOST=127.0.0.1

Cursor MCP (.cursor/mcp.json)

{
  "mcpServers": {
    "open-digger": {
      "command": "node",
      "args": ["/full/path/to/dist/index.js"],
      "cwd": "/full/path/to/project",
      "env": {
        "CACHE_TTL_SECONDS": "300"
      }
    }
  }
}

Tip

Replace /full/path/to/open-digger-mcp-server with your actual project directory path. Use pwd to get the current directory path.

Development

npm run watch           # Development mode
npm run build           # Compile TypeScript
npm run clean           # Clean build files
npm run sse:test        # Test SSE server

Tip

Beside Cursor, you can also use other MCP clients like VS Code, Claude Chat, or the official MCP Inspector.

Troubleshooting

Common Issues

Server not appearing in Cursor:

1. Verify absolute paths in .cursor/mcp.json
2. Restart Cursor completely (Cmd+Q / Alt+F4)
3. Check MCP Settings section for error messages

Permission errors:

chmod +x dist/index.js

Build errors:

npm run clean
npm install
npm run build

Cache issues:

# Clear npm cache
npm cache clean --force

# Rebuild
npm run clean && npm run build

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Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit changes (git commit -m 'Add amazing feature')
4. Push to branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

Apache-2.0 License - see LICENSE file for details.