Telegram Notifier MCP Server

A Model Context Protocol (MCP) server that provides a tool to send notifications via Telegram. Built with TypeScript and Node.js.

Features

• Single Tool: send_telegram_notification - Send messages to a configured Telegram chat
• Simple Setup: Configure once with environment variables
• Error Handling: Clear error messages for configuration and API issues
• TypeScript: Fully typed for better development experience

Prerequisites

1. Node.js: Version 18 or higher
2. Telegram Bot Token: Create a bot via @BotFather on Telegram
3. Chat ID: Get your chat ID (you can use @userinfobot)

Installation

# Install dependencies
npm install

# Build the TypeScript code
npm run build

Configuration

Environment Variables

Set the following environment variables:

export TELEGRAM_BOT_TOKEN="your_bot_token_here"
export TELEGRAM_CHAT_ID="your_chat_id_here"

You can also create a .env file in your project root:

TELEGRAM_BOT_TOKEN=your_bot_token_here
TELEGRAM_CHAT_ID=your_chat_id_here

MCP Client Configuration

Add to your MCP client configuration (e.g., Claude Desktop, Cline):

For Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "telegram-notifier": {
      "command": "node",
      "args": ["/Users/yarden.porat/projects/yarden/telegram-notifier-mcp/dist/index.js"],
      "env": {
        "TELEGRAM_BOT_TOKEN": "your_bot_token_here",
        "TELEGRAM_CHAT_ID": "your_chat_id_here"
      }
    }
  }
}

For Cline (VS Code extension):

Add to your Cline MCP settings:

{
  "telegram-notifier": {
    "command": "node",
    "args": ["/Users/yarden.porat/projects/yarden/telegram-notifier-mcp/dist/index.js"],
    "env": {
      "TELEGRAM_BOT_TOKEN": "your_bot_token_here",
      "TELEGRAM_CHAT_ID": "your_chat_id_here"
    }
  }
}

Usage

Once configured, the MCP server provides a single tool:

send_telegram_notification

Parameters:

• message (string, required): The message text to send to Telegram

Example:

Send a telegram notification with the message "Deployment completed successfully! 🚀"

The AI assistant will use the tool to send your message to the configured Telegram chat.

Development

Build

npm run build

Watch Mode

npm run watch

Testing

You can test the server manually by setting environment variables and running:

export TELEGRAM_BOT_TOKEN="your_bot_token_here"
export TELEGRAM_CHAT_ID="your_chat_id_here"
node dist/index.js

Or use the included shell script:

./send_telegrem_notification.sh "Test message"

Project Structure

telegram-notifier-mcp/
├── src/
│   └── index.ts              # Main server implementation
├── dist/                     # Compiled JavaScript (generated)
├── package.json              # Node.js dependencies and scripts
├── tsconfig.json             # TypeScript configuration
├── README.md                 # This file
└── send_telegrem_notification.sh  # Shell script for testing

How to Get Telegram Credentials

1. Create a Telegram Bot

1. Open Telegram and search for @BotFather
2. Send /newbot command
3. Follow the instructions to name your bot
4. Copy the bot token provided (format: 123456789:ABCdefGHIjklMNOpqrsTUVwxyz)

2. Get Your Chat ID

Option 1: Using @userinfobot

1. Search for @userinfobot on Telegram
2. Start a chat with it
3. Your chat ID will be displayed

Option 2: Using your bot

1. Start a chat with your newly created bot
2. Send any message to it
3. Visit: https://api.telegram.org/bot<YOUR_BOT_TOKEN>/getUpdates
4. Look for "chat":{"id": in the response

Troubleshooting

Bot not sending messages

• Ensure you've started a chat with your bot (send /start)
• Verify your bot token is correct
• Check that the chat ID is correct

MCP server not connecting

• Make sure the path to dist/index.js is absolute and correct
• Verify Node.js is installed and accessible
• Check that the build completed successfully (npm run build)

License

MIT