mcp-telegram

mcp
SUMMARY

Connect Telegram to Claude AI — messages, media, reactions, polls, scheduled messages & more. Hosted version: mcp-telegram.com (QR login, 30 sec setup). Built on GramJS/MTProto.

README.md

MCP Telegram

npm
npm downloads
Node.js
TypeScript
MCP SDK
License: MIT
mcp-telegram MCP server

Hosted version available! Don't want to self-host? Use mcp-telegram.com -- connect Telegram to Claude.ai or ChatGPT in 30 seconds with QR code. No API keys needed.

MCP Telegram demo — connect and summarize chats in Claude

An MCP (Model Context Protocol) server that connects AI assistants like Claude to Telegram via the MTProto protocol. Unlike bots, this runs as a userbot -- it operates under your personal Telegram account using GramJS, giving full access to your chats, contacts, and message history.

Features

  • MTProto protocol -- direct Telegram API access, not the limited Bot API
  • Userbot -- operates as your personal account, not a bot
  • Full-featured -- messaging, reactions, polls, scheduled messages, media, contacts, and more
  • Forum Topics -- list topics, read per-topic messages, send to specific topics, per-topic unread counts
  • QR code login -- authenticate by scanning a QR code in the Telegram app
  • Session persistence -- login once, stay connected across restarts
  • Human-readable output -- sender names are resolved, not just numeric IDs
  • Works with any MCP client -- Claude Code, Claude Desktop, ChatGPT, Cursor, VS Code, Mastra, etc.

Prerequisites

  • Node.js 18 or later
  • Telegram API credentials -- API_ID and API_HASH from my.telegram.org

Quick Start

1. Get Telegram API credentials

  1. Go to my.telegram.org and log in with your phone number.
  2. Navigate to API development tools.
  3. Create a new application (any name and platform).
  4. Copy the App api_id and App api_hash.

2. Login

TELEGRAM_API_ID=YOUR_ID TELEGRAM_API_HASH=YOUR_HASH npx @overpod/mcp-telegram login

A QR code will appear in the terminal. Open Telegram on your phone, go to Settings > Devices > Link Desktop Device, and scan the code. The session is saved to ~/.mcp-telegram/session and reused automatically.

Custom session path: set TELEGRAM_SESSION_PATH=/path/to/session to store the session file elsewhere.

3. Add to Claude

claude mcp add telegram -s user \
  -e TELEGRAM_API_ID=YOUR_ID \
  -e TELEGRAM_API_HASH=YOUR_HASH \
  -- npx @overpod/mcp-telegram

That's it! Ask Claude to run telegram-status to verify.

Multiple Accounts

Use TELEGRAM_SESSION_PATH to run separate Telegram accounts side by side:

# Login each account with a unique session path
TELEGRAM_API_ID=ID1 TELEGRAM_API_HASH=HASH1 TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-work npx @overpod/mcp-telegram login
TELEGRAM_API_ID=ID2 TELEGRAM_API_HASH=HASH2 TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-personal npx @overpod/mcp-telegram login

Then add each as a separate MCP server:

claude mcp add telegram-work -s user \
  -e TELEGRAM_API_ID=ID1 \
  -e TELEGRAM_API_HASH=HASH1 \
  -e TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-work \
  -- npx @overpod/mcp-telegram

claude mcp add telegram-personal -s user \
  -e TELEGRAM_API_ID=ID2 \
  -e TELEGRAM_API_HASH=HASH2 \
  -e TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-personal \
  -- npx @overpod/mcp-telegram

Each account gets its own session file — no conflicts.

Proxy Support

If Telegram is blocked or you're running in a containerized environment (Docker, K3s), use a SOCKS5 or MTProxy:

# SOCKS5 proxy
TELEGRAM_PROXY_IP=127.0.0.1 \
TELEGRAM_PROXY_PORT=10808 \
npx @overpod/mcp-telegram

# MTProxy
TELEGRAM_PROXY_IP=proxy.example.com \
TELEGRAM_PROXY_PORT=443 \
TELEGRAM_PROXY_SECRET=ee00000000000000000000000000000000 \
npx @overpod/mcp-telegram
Variable Description
TELEGRAM_PROXY_IP Proxy server address
TELEGRAM_PROXY_PORT Proxy server port
TELEGRAM_PROXY_SOCKS_TYPE 4 or 5 (default: 5)
TELEGRAM_PROXY_SECRET MTProxy secret (enables MTProxy mode)
TELEGRAM_PROXY_USERNAME Optional proxy auth
TELEGRAM_PROXY_PASSWORD Optional proxy auth

Installation Options

npx (recommended, zero install)

No need to clone or install anything. Just use npx @overpod/mcp-telegram.

Global install

npm install -g @overpod/mcp-telegram
mcp-telegram          # run server
mcp-telegram login    # QR login

From source

git clone https://github.com/overpod/mcp-telegram.git
cd mcp-telegram
npm install && npm run build

Docker

docker build -t mcp-telegram https://github.com/overpod/mcp-telegram.git

Login (interactive terminal required):

docker run -it --rm \
  -e TELEGRAM_API_ID=YOUR_ID \
  -e TELEGRAM_API_HASH=YOUR_HASH \
  -v ~/.mcp-telegram:/root/.mcp-telegram \
  --entrypoint node mcp-telegram dist/qr-login-cli.js

Run the MCP server:

docker run -i --rm \
  -e TELEGRAM_API_ID=YOUR_ID \
  -e TELEGRAM_API_HASH=YOUR_HASH \
  -v ~/.mcp-telegram:/root/.mcp-telegram \
  mcp-telegram

Note: Login must be done once via terminal. After that, the session is persisted in ~/.mcp-telegram and reused automatically.

Usage with MCP Clients

Claude Code (CLI)

claude mcp add telegram -s user \
  -e TELEGRAM_API_ID=YOUR_ID \
  -e TELEGRAM_API_HASH=YOUR_HASH \
  -- npx @overpod/mcp-telegram

Claude Desktop

  1. Open your config file:

    • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
    • Windows: %APPDATA%\Claude\claude_desktop_config.json
  2. Add the Telegram server:

{
  "mcpServers": {
    "telegram": {
      "command": "npx",
      "args": ["@overpod/mcp-telegram"],
      "env": {
        "TELEGRAM_API_ID": "YOUR_ID",
        "TELEGRAM_API_HASH": "YOUR_HASH"
      }
    }
  }
}
  1. Restart Claude Desktop.

  2. Ask Claude: "Run telegram-login" -- a QR code will appear. If the image is not visible, it's also saved to ~/.mcp-telegram/qr-login.png. Scan it in Telegram (Settings > Devices > Link Desktop Device).

  3. Ask Claude: "Run telegram-status" to verify the connection.

Note: No terminal required! Login works entirely through Claude Desktop.

Claude Desktop (Docker)

  1. Login via terminal first (see Docker section above).

  2. Add to your config file:

{
  "mcpServers": {
    "telegram": {
      "command": "docker",
      "args": [
        "run", "-i", "--rm",
        "-e", "TELEGRAM_API_ID=YOUR_ID",
        "-e", "TELEGRAM_API_HASH=YOUR_HASH",
        "-v", "~/.mcp-telegram:/root/.mcp-telegram",
        "mcp-telegram"
      ]
    }
  }
}
  1. Restart Claude Desktop. Ask Claude: "Run telegram-status" to verify.

Cursor / VS Code

Add the same JSON config above to your MCP settings (Cursor Settings > MCP, or VS Code MCP config).

Mastra

import { MCPClient } from "@mastra/mcp";

const telegramMcp = new MCPClient({
  id: "telegram-mcp",
  servers: {
    telegram: {
      command: "npx",
      args: ["@overpod/mcp-telegram"],
      env: {
        TELEGRAM_API_ID: process.env.TELEGRAM_API_ID!,
        TELEGRAM_API_HASH: process.env.TELEGRAM_API_HASH!,
      },
    },
  },
});

Tools

All tools are auto-discoverable via MCP — your AI client will see the full list with parameters and descriptions when connected.

Categories: authentication, messaging (send, edit, delete, forward, schedule, polls), reading (chats, messages, search, unread), forum topics, group management (create, edit, invite, kick, ban, admin, leave), contacts & moderation, user profiles, reactions, media.

Tip: Ask your AI assistant "What Telegram tools are available?" to get the current list with parameters.

Development

npm run dev        # Start with file watching (tsx)
npm start          # Start the MCP server
npm run login      # QR code login in terminal
npm run build      # Compile TypeScript
npm run lint       # Check code with Biome
npm run lint:fix   # Auto-fix lint issues
npm run format     # Format code with Biome

Project Structure

src/
  index.ts            -- MCP server entry point
  telegram-client.ts  -- TelegramService class (GramJS wrapper)
  qr-login-cli.ts     -- CLI utility for QR code login
  tools/              -- Modular tool definitions
    auth.ts           -- Connection & login
    messages.ts       -- Send, read, search, edit, delete, forward
    chats.ts          -- Chat listing, group management, admin
    contacts.ts       -- Contacts, profiles, moderation
    media.ts          -- Files, photos
    reactions.ts      -- Reactions
    extras.ts         -- Pin, schedule, polls, topics
    shared.ts         -- Shared utilities

Tech Stack

  • TypeScript -- ES2022, ESM modules
  • GramJS (telegram) -- Telegram MTProto client
  • @modelcontextprotocol/sdk -- MCP server framework
  • Zod -- Runtime schema validation for tool parameters
  • Biome -- Linter and formatter
  • tsx -- TypeScript execution without a build step
  • dotenv -- Environment variable management

Troubleshooting

AUTH_KEY_DUPLICATED

A Telegram session can only be used by one process at a time. If you get AUTH_KEY_DUPLICATED, it means another process is already using the same session file.

Solution: Create separate sessions for each environment:

# Local development
TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-local npx @overpod/mcp-telegram login

# Production server
TELEGRAM_SESSION_PATH=~/.mcp-telegram/session-prod npx @overpod/mcp-telegram login

Then set TELEGRAM_SESSION_PATH in each environment's MCP config accordingly.

Security

  • API credentials are stored in .env (gitignored)
  • Session is stored in ~/.mcp-telegram/session with 0600 permissions (owner-only access)
  • Session directory is created with 0700 permissions
  • Phone number is not required -- QR-only authentication
  • No data is sent to third-party services -- all communication goes directly to Telegram servers via MTProto
  • QR login codes are generated locally and never leave your machine
  • One session per process -- using the same session in multiple processes simultaneously causes AUTH_KEY_DUPLICATED errors (see Troubleshooting)
  • This is a userbot (personal account), not a bot -- respect the Telegram Terms of Service

License

MIT

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