sinhala-mcp 0.1.0

MCP server for translating Sinhala/Singlish commands into English technical prompts

sinhala-mcp 🇱🇰

Production-ready MCP server that translates Sinhala/Singlish instructions into English technical prompts using Google Gemini AI.

✨ Features

• 🌍 Sinhala/Singlish Translation: Convert colloquial commands into structured English technical specifications
• 🧠 Context-Aware: Automatically infers technical context (e.g., "Login" → "Authentication flow")
• 🔒 Environment Variable Auth: Secure API key management via environment variables
• 🚀 Production-Ready:
  • Comprehensive error handling and logging
  • Retry logic for API failures
  • Timeout protection (30s default)
  • Input validation and sanitization
  • Health check endpoint for monitoring
  • Rate limit handling
• 📦 MCP Compliant: Works with Claude Desktop, VS Code MCP client, and other MCP-compatible tools
• 🎯 Latest AI: Uses Google GenAI SDK with Gemini 2.0 Flash (GA as of May 2025)

📦 Installation

Using uvx (Recommended - No installation required)

# Just run it directly!
uvx sinhala-mcp

Using pip

pip install sinhala-mcp

Using uv

uv pip install sinhala-mcp

🔑 Configuration

Step 1: Get a Google Gemini API Key

1. Visit Google AI Studio
2. Create a new API key
3. Keep it secure - never commit it to version control

Step 2: Configure Your MCP Client

IMPORTANT: The server reads the API key from the GEMINI_API_KEY environment variable. Do not use the old set_gemini_key tool - it has been removed for security and store compatibility.

Claude Desktop Configuration

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "sinhala-mcp": {
      "command": "uvx",
      "args": ["sinhala-mcp"],
      "env": {
        "GEMINI_API_KEY": "your-api-key-here"
      }
    }
  }
}

VS Code MCP Extension

{
  "mcp.servers": {
    "sinhala-mcp": {
      "command": "uvx",
      "args": ["sinhala-mcp"],
      "env": {
        "GEMINI_API_KEY": "your-api-key-here"
      }
    }
  }
}

Command Line / Development

# Linux/macOS
export GEMINI_API_KEY="your-api-key-here"

# Windows CMD
set GEMINI_API_KEY=your-api-key-here

# Windows PowerShell
$env:GEMINI_API_KEY="your-api-key-here"

🛠️ Available Tools

1. translate_sinhala_instruction

Translates Sinhala or Singlish instructions into precise English technical prompts.

Parameters:

• instruction (string, required): The Sinhala or Singlish instruction to translate (max 5000 characters)

Example:

Translate "mama login ekak hadanna one" using translate_sinhala_instruction

Output:

Original (Sinhala/Singlish):
mama login ekak hadanna one

Translated (English Technical Prompt):
Implement a user authentication system with login functionality including:
- Username/email and password input fields
- Form validation for credentials
- Authentication endpoint integration
- Session management after successful login
- Error handling for failed authentication attempts

2. health_check

Check if the MCP server and Gemini API connection are working properly.

Parameters: None

Example:

Run health_check

Output:

Health Check: PASSED
Server: sinhala-mcp v0.1.0
API Connection: Active
Timestamp: 2025-01-26T12:00:00.000000

💡 Usage Examples

Example 1: Web Development

Input (Sinhala):

"Mama dashboard ekak denna user stats tikkai"

Translated Output:

Create a user analytics dashboard with:
- Real-time user statistics display
- Data visualization charts
- Filtering and search capabilities
- Responsive layout for mobile/desktop
- Authentication-protected access

Example 2: Backend Development

Input (Sinhala):

"Database eka connect karanna API endpoint ekak hadala ganna"

Translated Output:

Implement database integration with REST API:
- Set up database connection pool
- Create CRUD endpoints for data access
- Implement proper error handling
- Add data validation and sanitization
- Include authentication/authorization middleware

Example 3: Frontend Features

Input (Sinhala):

"Profile page eka photo upload eka danne"

Translated Output:

Implement profile photo upload feature:
- File upload input with image type validation
- Client-side image preview
- Size and format restrictions
- Upload progress indicator
- Server-side file storage integration
- Error handling for upload failures

🏗️ Development

Setup Development Environment

# Clone the repository
git clone https://github.com/Thamindu-Dev/sinhala-mcp.git
cd sinhala-mcp

# Install dependencies
pip install -e .

# Or using uv
uv pip install -e .

Running Tests

# Test server import
python test_simple.py

# Run with verbose logging
LOGLEVEL=DEBUG python -m sinhala_mcp.server

Project Structure

sinhala-mcp/
├── src/
│   └── sinhala_mcp/
│       ├── __init__.py
│       └── server.py          # Main MCP server implementation
├── pyproject.toml              # Package configuration
├── smithery.yaml              # Store publishing configuration
├── README.md                  # This file
└── LICENSE                    # MIT License

🔒 Security

• ✅ API keys stored in environment variables only
• ✅ No local file storage of credentials
• ✅ Input validation and sanitization
• ✅ Protection against injection attacks
• ✅ Rate limit handling
• ✅ Open source - fully auditable

📊 Technical Specifications

• Build Backend: hatchling
• Package Layout: Modern src/ layout
• Python Version: 3.10+ (tested on 3.10-3.13)
• Dependencies:
  • mcp>=0.9.0 - Model Context Protocol SDK
  • google-genai>=1.0.0 - Official Google GenAI SDK (GA)
• AI Model: Gemini 2.0 Flash Experimental
• Max Instruction Length: 5000 characters
• API Timeout: 30 seconds
• Retry Logic: 2 retries with exponential backoff

🚀 Production Deployment

The server is production-ready with:

• Structured Logging: Timestamped logs for debugging
• Error Handling: Graceful failure with user-friendly messages
• Health Checks: Monitor API connectivity
• Timeout Protection: Prevents hanging requests
• Retry Logic: Handles transient API failures
• Input Validation: Prevents abuse and injection attacks

📚 Architecture

┌─────────────────┐      ┌──────────────────┐      ┌─────────────────┐
│ User (Sinhala)  │─────>│  MCP Server      │─────>│ Google Gemini   │
│ "mama login eka │      │  (translate_     │      │ AI API          │
│  karanna one"   │      │   sinhala_       │      │                 │
└─────────────────┘      └──────────────────┘      └─────────────────┘
                                  │
                                  ▼
                         ┌──────────────────┐
                         │ English Output   │
                         │ "Implement user  │
                         │  authentication │
                         │  with login form"│
                         └──────────────────┘

🤝 Contributing

Contributions are welcome! Please feel free to:

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Submit a Pull Request

📝 License

MIT License - see LICENSE for details.

🔧 Troubleshooting

Common Issues

1. "GEMINI_API_KEY not found" Error

   • Ensure you have added the key to your configuration file (Claude Desktop or VS Code).
   • If using the terminal, ensure you ran export GEMINI_API_KEY=... (Mac/Linux) or $env:GEMINI_API_KEY=... (Windows).
   • Restart your MCP client after changing the configuration.

2. Connection Refused / Server Error

   • Check if you have the latest version installed: uv tool upgrade sinhala-mcp
   • Verify your internet connection (Google Gemini API requires internet access).

3. Translation is empty or incorrect

   • The model might have blocked the content due to safety settings. Try rephrasing the instruction.

🆘 Support

• Report Issues: GitHub Issues
• Documentation: This README
• MCP Protocol: modelcontextprotocol.io

🙏 Acknowledgments

Built with:

• Model Context Protocol - Standard for AI context
• Google GenAI SDK - Official Python SDK
• MCP Python SDK - MCP implementation

📈 Roadmap

• Add more language pairs (Tamil, etc.)
• Support for streaming responses
• Custom system prompt configuration
• Translation history/caching
• Web UI for testing

👨‍💻 About the Developer

sinhala-mcp was created by Thamindu Hatharasinha.

• 🌐 Portfolio: www.thamidu.me
• 🐙 GitHub: Thamindu-Dev

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Made with ❤️ for Sinhala-speaking developers worldwide

For more information about MCP, visit modelcontextprotocol.io.