Telegram Bridge MCP

A Model Context Protocol server that bridges AI assistants to a Telegram bot — enabling two-way messaging, interactive confirmations, live status updates, and automatic voice transcription.

Works with any MCP-compatible AI host: VS Code Copilot, Claude Desktop, and others.

What it does

Once configured, your AI assistant can:

• Send messages to your Telegram chat — plain text, formatted Markdown, photos

• Ask questions and wait for your reply — as free text or button choices

• Post live status updates — an in-place checklist that updates as tasks progress

• React to messages — emoji reactions instead of noise text

• Transcribe voice messages — speak your reply; it arrives as text

• Receive all of this in real time — long-polling, no webhooks, no public URL needed

Prerequisites

• Node.js 18+ — nodejs.org

• pnpm — install once via: npm install -g pnpm

If you prefer npm, you can substitute all pnpm commands with their npm equivalents (npm install, npm run build, etc.). The project works with either.

Quick Start

1. Clone and install

git clone https://github.com/electricessence/Telegram-Bridge-MCP.git
cd Telegram-Bridge-MCP
pnpm install
pnpm build

2. Create a Telegram bot

Open Telegram, message @BotFather, and run /newbot. Copy the token it gives you.

3. Pair the bot to your account

pnpm pair

This interactive wizard:

1. Verifies your bot token

2. Generates a one-time pairing code

3. Waits for you to send that code to your bot in Telegram

4. Captures your user ID and chat ID

5. Writes everything to .env

4. Configure your MCP host

VS Code — add to .vscode/mcp.json:

{
  "servers": {
    "telegram": {
      "type": "stdio",
      "command": "node",
      "args": ["dist/index.js"],
      "cwd": "/absolute/path/to/telegram-bridge-mcp",
      "env": {
        "BOT_TOKEN": "YOUR_TOKEN",
        "ALLOWED_USER_ID": "YOUR_USER_ID",
        "ALLOWED_CHAT_ID": "YOUR_CHAT_ID"
      }
    }
  }
}

Claude Desktop — add to claude_desktop_config.json:

{
  "mcpServers": {
    "telegram": {
      "command": "node",
      "args": ["/absolute/path/to/telegram-bridge-mcp/dist/index.js"],
      "env": {
        "BOT_TOKEN": "YOUR_TOKEN",
        "ALLOWED_USER_ID": "YOUR_USER_ID",
        "ALLOWED_CHAT_ID": "YOUR_CHAT_ID"
      }
    }
  }
}

5. Start a session

Paste the contents of LOOP-PROMPT.md into your AI assistant's chat. It will connect, announce itself over Telegram, and wait for your instructions.

Tools

High-level (use these 99% of the time)

Messaging

send_message · edit_message_text · forward_message · delete_message · pin_message · send_chat_action · start_typing

Interaction primitives

wait_for_message · wait_for_callback_query · answer_callback_query

Info & utilities

get_me · get_chat · set_reaction · get_updates · restart_server

Resources

Three guides are available as MCP resources — any MCP client can read them directly:

Security

The server enforces a strict two-layer security model:

• ALLOWED_USER_ID — Inbound updates from any other user are silently discarded before the assistant ever sees them. Prevents message injection.

• ALLOWED_CHAT_ID — Outbound tool calls to any other chat are rejected immediately. Prevents misdirected messages.

The server is designed for single-user, single-chat use — chat_id is never a tool parameter; it is resolved from config transparently.

See SETUP.md for the full security model and threat analysis.

Voice Transcription

All message-receiving tools (wait_for_message, ask, choose, get_updates) automatically transcribe voice messages using a local Whisper model via @huggingface/transformers (ONNX Runtime).

• No external API calls

• No ffmpeg required

• Model weights are downloaded once on first use and cached locally

Configure via environment variables:

WHISPER_MODEL=onnx-community/whisper-base   # default
WHISPER_CACHE_DIR=/path/to/cache            # optional

Development

pnpm build          # Compile TypeScript
pnpm dev            # Watch mode
pnpm test           # Run tests
pnpm coverage       # Test coverage report
pnpm pair           # Re-run pairing wizard

License

MIT — see LICENSE.