MCP Portal

A supergateway that bridges local STDIO MCP servers to Server-Sent Events (SSE) and exposes them to public networks. Built as a fork of the Model Context Protocol Inspector, MCP Portal transforms local-only MCP servers into network-accessible services.

Available as both a desktop application and web interface, MCP Portal provides a user-friendly way to inspect, test, and share your MCP servers.

🚀 Quick Start

Desktop App (Recommended)

# Clone the repository
git clone https://github.com/YimingZhao-art/mcp-portal.git
cd mcp-portal

# Install dependencies
npm install --ignore-scripts

# Start desktop app in development mode
npm run electron-dev

# Or build and run desktop app
npm run electron

Web Version

# Install dependencies and start web version
npm install --ignore-scripts
npm run dev

If you encounter build errors, try:

# Clean install
npm run clean
npm run dev

Open http://localhost:6274 and use the web UI to connect to your MCP servers.

Note: The portal automatically installs MCP packages (like @playwright/mcp) when you connect to them through the UI. No manual installation needed!

🌐 Public Network Access

To expose your MCP server to the internet:

1. Sign up at ngrok.com and get your auth token
2. Configure ngrok: ngrok config add-authtoken YOUR_TOKEN
3. Run: npm run dev
4. In another terminal: ngrok http 6277

Your MCP server is now accessible via the ngrok URL.

🔧 Development

Local Development

# Clone the repository
git clone https://github.com/YimingZhao-art/mcp-portal.git
cd mcp-portal

# Install dependencies
npm install

# Start web development mode
npm run dev

# On Windows
npm run dev:windows

# Start desktop app development mode
npm run electron-dev

Building Desktop App

# Build for all platforms
npm run dist

# Build for specific platforms
npm run dist-mac    # macOS
npm run dist-win    # Windows  
npm run dist-linux  # Linux

The built applications will be available in the dist-electron/ directory.

🌐 Related Projects

• Original: MCP Inspector - The foundation this project builds upon
• Supergateway: supercorp-ai/supergateway - Advanced gateway patterns and architecture
• MCP Specification: Model Context Protocol - Official protocol documentation

🤝 Contributing

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

Development Guidelines

• Follow the existing code style and patterns
• Add tests for new functionality
• Update documentation as needed
• Ensure all tests pass before submitting

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

• Model Context Protocol team for the original inspector
• Supercorp AI for gateway architecture inspiration
• The open-source community for continuous improvements and feedback

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Transform your local MCP servers into network-accessible services with MCP Portal 🚀