Harmony 2.0 Master Agent - Gemini MCP Server

A powerful Gemini-powered agent that serves as the master guide for Harmony 2.0 development, accessible via Model Context Protocol (MCP) for Cursor and other MCP-compatible tools.

🌟 Features

• Harmony 2.0 Expert: Deep knowledge of Harmony 2.0 architecture, patterns, and best practices

• MCP Integration: Full Model Context Protocol support for Cursor and other tools

• Free Tier Compatible: Designed to run on free-tier hosting services

• Multiple Interfaces:

  • MCP server for Cursor integration

  • REST API for external access

  • Direct programmatic access

Related MCP server: ohos-mcp-unofficial

📋 Prerequisites

• Node.js 18+

• Gemini API key (free tier available at Google AI Studio)

🚀 Quick Start

1. Install Dependencies

npm install

2. Configure Environment

Copy .env.example to .env and add your Gemini API key:

cp .env.example .env

Edit .env:

GEMINI_API_KEY=your_gemini_api_key_here
PORT=3000

3. Local Development

Run the REST API Server:

npm start

The API will be available at http://localhost:3000

Run the MCP Server (for Cursor):

npm run mcp

🔧 Cursor Integration

Option 1: Local MCP Server

1. Add to your Cursor MCP configuration (usually in ~/.cursor/mcp.json or Cursor settings):

{
  "mcpServers": {
    "harmony2-master": {
      "command": "node",
      "args": ["/absolute/path/to/harmony2-gemini-mcp/src/mcp-server.js"],
      "env": {
        "GEMINI_API_KEY": "your_gemini_api_key_here"
      }
    }
  }
}

2. Restart Cursor

3. The Harmony 2.0 tools will appear in Cursor's MCP tools section

Option 2: External MCP Server (Recommended for Sharing)

Deploy the server (see Deployment section) and configure Cursor to connect to it.

🌐 Deployment (Free Tier Options)

Option 1: Vercel (Recommended)

1. Install Vercel CLI:

npm i -g vercel

2. Deploy:

vercel

3. Set environment variable:

vercel env add GEMINI_API_KEY

4. Your API will be available at https://your-project.vercel.app

Option 2: Render

1. Create a new Web Service on Render

2. Connect your GitHub repository

3. Use these settings:

   • Build Command: npm install

   • Start Command: npm start

4. Add GEMINI_API_KEY in Environment Variables

5. Deploy!

Option 3: Railway

1. Create a new project on Railway

2. Connect your GitHub repository

3. Add GEMINI_API_KEY environment variable

4. Deploy!

Option 4: Fly.io

1. Install Fly CLI:

curl -L https://fly.io/install.sh | sh

2. Initialize:

fly launch

3. Set secrets:

fly secrets set GEMINI_API_KEY=your_key_here

4. Deploy:

fly deploy

📡 API Endpoints

Health Check

GET /health

Chat with Harmony Agent

POST /api/chat
Body: {
  "message": "How do I set up a new Harmony 2.0 project?",
  "context": {} // optional
}

Analyze Code

POST /api/analyze
Body: {
  "code": "your code here",
  "language": "javascript" // optional
}

Generate Code

POST /api/generate
Body: {
  "description": "Create a React component for user authentication",
  "componentType": "component" // optional
}

Get Guidance

POST /api/guidance
Body: {
  "topic": "state management"
}

🛠️ MCP Tools

The MCP server exposes these tools:

1. harmony_chat - Chat with the Harmony 2.0 Master Agent

2. harmony_analyze_code - Analyze code for Harmony 2.0 compliance

3. harmony_generate_code - Generate code following Harmony 2.0 patterns

4. harmony_get_guidance - Get comprehensive guidance on Harmony 2.0 topics

📚 Harmony 2.0 Resources

• Official Documentation

• GitHub Repository

🔐 Security Notes

• Never commit your .env file

• Keep your Gemini API key secure

• For production, use environment variables provided by your hosting platform

• Consider rate limiting for public APIs

🆓 Free Tier Limits

• Gemini API: Free tier includes generous usage limits

• Vercel: 100GB bandwidth/month, unlimited requests

• Render: 750 hours/month, 512MB RAM

• Railway: $5 free credit/month

• Fly.io: 3 shared VMs, 3GB storage

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

📝 License

MIT

🆘 Support

For issues or questions:

1. Check the Harmony 2.0 documentation

2. Open an issue on GitHub

3. Contact the Harmony 2.0 community

Built with ❤️ for the Harmony 2.0 community