Communication MCP Server

A Node.js TypeScript implementation of an MCP (Model Context Protocol) server that provides comprehensive email and WhatsApp communication capabilities. This is a complete conversion from the original Python implementation, maintaining 100% feature parity while adding TypeScript enhancements.

✨ Features

• 📧 Email Communication: Send professional emails via Gmail API with OAuth2 authentication
• 📱 WhatsApp Communication: Send WhatsApp messages via WhatsApp Business API
• 👤 User Management: Retrieve user information from MongoDB with ObjectId support
• 🔗 MCP Compatible: Full compatibility with Model Context Protocol
• 🔒 Secure Authentication: OAuth2 flows with automatic token refresh
• ⚙️ Flexible Configuration: Environment variables and CLI argument support

🚀 Quick Start

Installation

npm install
npm run build

Configuration

Set up your environment variables:

# MongoDB Configuration
export MONGODB_URI="mongodb://localhost:27017"
export MONGODB_DB_NAME="mcp_communication"

# Gmail OAuth Configuration
export OAUTH_CLIENT_ID="your_gmail_oauth_client_id"
export OAUTH_CLIENT_SECRET="your_gmail_oauth_client_secret"
export GMAIL_SCOPES="https://www.googleapis.com/auth/gmail.send"

# WhatsApp Business API Configuration
export WHATSAPP_TOKEN="your_whatsapp_api_token"
export WHATSAPP_URL="https://graph.facebook.com/v18.0/YOUR_PHONE_NUMBER_ID/messages"

Gmail OAuth Setup

Run the interactive OAuth setup wizard:

npm run oauth-setup

Usage

# Start the server
npx communication-mcp-server

# With custom configuration
npx communication-mcp-server --mongodb-uri mongodb://localhost:27017 --debug

# Development mode
npm run dev

🛠️ Tools

mail_communication

Send formal emails with HTML content support, CC, and BCC capabilities.

Parameters:

• subject (string): Email subject line (max 100 characters)
• content (string): HTML email content with formatting support
• recipient (array): Main recipient email addresses
• cc (array, optional): Carbon copy recipients
• bcc (array, optional): Blind carbon copy recipients

Example:

{
  "subject": "Meeting Invitation",
  "content": "<h1>Team Meeting</h1><p>Join us tomorrow at 10 AM.</p><br>Best regards,<br>Syia",
  "recipient": ["[email protected]"],
  "cc": ["[email protected]"]
}

whatsapp_communication

Send quick WhatsApp messages to individual recipients.

Parameters:

• content (string): Plain text message content
• recipient (string): WhatsApp phone number (E.164 or local format)

Example:

{
  "content": "Hello! Your appointment is confirmed for tomorrow at 2 PM.",
  "recipient": "+1234567890"
}

📦 Resources

user://details/<user_id>

Retrieve detailed user information from MongoDB by user ID.

Returns: User object with firstName, lastName, email, and phone fields.

💬 Prompts

general_instructions

Provides contextual instructions for working with the Communication system, including current date information.

⚙️ Configuration Options

Environment Variables

| Variable | Description | Default | |----------|-------------|---------| | MONGODB_URI | MongoDB connection string | mongodb://localhost:27017 | | MONGODB_DB_NAME | MongoDB database name | mcp_communication | | OAUTH_CLIENT_ID | Gmail OAuth client ID | - | | OAUTH_CLIENT_SECRET | Gmail OAuth client secret | - | | GMAIL_SCOPES | Gmail OAuth scopes | https://www.googleapis.com/auth/gmail.send | | WHATSAPP_TOKEN | WhatsApp Business API token | - | | WHATSAPP_URL | WhatsApp API endpoint | - |

CLI Arguments

Options:
  --mongodb-uri URI         Set MongoDB URI
  --mongodb-db-name NAME    Set MongoDB database name
  --oauth-client-id ID      Set OAuth client ID
  --oauth-client-secret SECRET Set OAuth client secret
  --whatsapp-token TOKEN    Set WhatsApp API token
  --whatsapp-url URL        Set WhatsApp API URL
  --debug                   Enable debug logging
  --help, -h               Show help message

🔧 Development

Project Structure

communication-mcp-server/
├── src/
│   ├── config.ts           # Configuration management
│   ├── database.ts         # MongoDB client and operations
│   ├── index.ts           # Main server entry point
│   ├── oauth-setup.ts     # Interactive OAuth setup
│   ├── prompts.ts         # MCP prompt handlers
│   ├── resources.ts       # MCP resource handlers
│   ├── tools.ts           # Tool implementations
│   └── tool-schemas.ts    # Tool schema definitions
├── bin/cli.js             # Executable CLI script
├── scripts/install.js     # Installation helper
└── dist/                  # Compiled JavaScript output

Development Commands

# Install dependencies
npm install

# Build the project
npm run build

# Run in development mode
npm run dev

# Clean build files
npm run clean

# Set up Gmail OAuth
npm run oauth-setup

🔐 Authentication Setup

Gmail OAuth2

1. Go to Google Cloud Console
2. Create a new project or select existing
3. Enable the Gmail API
4. Create OAuth 2.0 credentials (Desktop application)
5. Set authorized redirect URIs: http://localhost:3000/oauth2callback
6. Export your credentials:

   export OAUTH_CLIENT_ID="your_client_id"
   export OAUTH_CLIENT_SECRET="your_client_secret"

7. Run the setup wizard: npm run oauth-setup

WhatsApp Business API

1. Set up WhatsApp Business API account
2. Create a message template named "whatsapp_template"
3. Get your phone number ID and access token
4. Configure environment variables:

   export WHATSAPP_TOKEN="your_access_token"
   export WHATSAPP_URL="https://graph.facebook.com/v18.0/YOUR_PHONE_NUMBER_ID/messages"

MongoDB Setup

Ensure MongoDB is running with a users collection:

// Example user document structure
{
  "_id": ObjectId("..."),
  "firstName": "John",
  "lastName": "Doe",
  "email": "[email protected]",
  "phone": "+1234567890"
}

📋 System Requirements

• Node.js: ≥18.0.0
• MongoDB: ≥4.0
• TypeScript: ≥5.0

🤝 Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests if applicable
5. Submit a pull request

📄 License

MIT License - see LICENSE file for details.

🏢 About

Developed by Syia AI - Advancing communication through intelligent automation.

🔄 Migration from Python

This TypeScript implementation provides 100% feature parity with the original Python version while offering:

• ✅ Enhanced type safety with TypeScript
• ✅ Automatic OAuth token refresh
• ✅ Interactive setup wizards
• ✅ Modern ESM module support
• ✅ Comprehensive CLI help
• ✅ Better error handling
• ✅ npm package ecosystem benefits

For migration assistance or questions, please open an issue.