io.github.leshchenko1979/fast-mcp-telegram MCP Server

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Telegram MCP Server — Model Context Protocol (MCP) gateway for Telegram. 8 context-efficient tools, multi-tenant, MTProto bridge.

Try the Demo

1. Open https://tg-mcp.l1979.ru/setup
2. Scan the QR code from Telegram mobile (Settings → Devices → Scan QR) — no phone typing, no OTP, no 2FA. Or enter your phone number as fallback.
3. Copy your Bearer token from the success page

Then choose your path:

MCP Client (AI assistants)

• From the setup page, download the mcp.json file
• Add the server to your AI client and ask: "send hello to my saved messages in telegram"

Direct API (curl)

• Run the command below (replace TOKEN with yours):

curl -X POST "https://tg-mcp.l1979.ru/mtproto-api/messages.SendMessage" \
  -H "Authorization: Bearer TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"params": {"peer": "me", "message": "Hello!"}}'

How It Works

This server sits between your AI agent and Telegram's API:

Your agent → MCP/HTTP → this server → MTProto → Telegram

What it does: Authenticates you with Telegram (QR or phone/bot token), exposes 8 AI-friendly tools instead of 80+ micro-APIs, and bridges raw MTProto for power users. Multi-tenant — one server, many users, isolated sessions.

Features

Feature	Description
:building_construction: Dual Transport	Stdio for local MCP clients, HTTP for remote deploys (http-auth production, optional http-no-auth for dev)
:closed_lock_with_key: Multi-User Authentication	Shared http-auth server: one Bearer token per user, one Telegram account per MCP connection. QR login for instant auth — no phone/OTP/2FA.
:dart: AI-Optimized	8 consolidated tools vs 80+ micro-tools — context-efficient design, LLM-friendly API, MCP ToolAnnotations
:globe_with_meridians: HTTP-MTProto Bridge	Direct curl access to any Telegram API method with entity resolution and safety guardrails
:shield: Session ACL	Opt-in per-principal limits on http-auth (ACL_ENABLED) — chat lanes, read_only, blocked_peers, allow_mtproto, ACL_DENY_UNLISTED_PRINCIPALS; see SECURITY.md
:tv: QR & Web Setup	Scan QR from Telegram mobile for instant auth (no phone/OTP/2FA) or use phone/code/2FA fallback — live at /setup
:label: One Agent, Multiple Accounts	Optional PREFIX_MCP_TOOLS_WITH_ACCOUNT — when one agent uses several MCP connections (same server, different tokens), prefixes tool names so they do not collide; not needed for standard multi-user hosting
:rocket: MTProto Proxy Support	Connect via MTProto proxy with automatic Fake TLS (EE prefix) and standard proxy detection
:card_file_box: Unified Session Management	Single configuration system for setup and server; per-token session files on shared multi-user hosts
:cloud: S3 Session Storage	Store sessions in S3-compatible object storage for ephemeral hosted deployments (Smithery, Fly.io, Railway)
:mag_right: Intelligent Search	Global & per-chat message search with multi-query support and intelligent deduplication
:mag: Unified Message API	Single get_messages tool for search, browse, read by IDs, and replies - 5 modes in one
:speech_balloon: Universal Replies	Get replies from channel posts, forum topics, or any message with one parameter
:busts_in_silhouette: Smart Contact Discovery	Search users, groups, channels with uniform entity schemas, forum detection, profile enrichment
:file_folder: Folder Filtering	Filter chats by dialog folder (archived, custom folders) with integer ID or name matching
:envelope: Advanced Messaging	Send, edit, reply, post to forum topics, formatting, file attachments, and phone number messaging
:paperclip: Secure File Handling	Rich media sharing with SSRF protection, size limits, album support, optional HTTP attachment streaming
:outbox_tray: Inline File Uploads	Data: URI (base64) file uploads in files param — work in all transport modes, filenames preserved, images sent as photos
:microphone: Voice Transcription	Automatic speech-to-text for Premium accounts with parallel processing and polling
:zap: High Performance	Async operations, parallel queries, and memory-conscious batching
:shield: Production Reliability	Auto-reconnect, configurable logging, comprehensive error handling

Quick Start

1. Install and authenticate

Quickest path (remote server): Open /setup → scan QR → copy token (see Try the Demo).

CLI path (local stdio): Run fast-mcp-telegram-setup once to create a Telegram session — then fast-mcp-telegram serves it:

uvx --from fast-mcp-telegram fast-mcp-telegram-setup \
  --api-id="your_api_id" \
  --api-hash="your_api_hash" \
  --phone-number="+123456789"

Bot token alternative (no phone, no OTP): Set BOT_API_TOKEN instead of --phone-number. See Installation Guide.

2. Configure MCP Client

stdio mode (local): Add to your MCP client config (e.g. claude_desktop_config.json) — stdio (standard input/output) is the default transport for local MCP clients:

{
  "mcpServers": {
    "telegram": {
      "command": "uvx",
      "args": ["fast-mcp-telegram"],
      "env": {
        "API_ID": "your_api_id",
        "API_HASH": "your_api_hash"
      }
    }
  }
}

http-auth mode (remote): Add to your MCP client config (e.g. claude_desktop_config.json):

{
  "mcpServers": {
    "telegram": {
      "url": "https://tg-mcp.l1979.ru/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_TOKEN"
      }
    }
  }
}

Get your token by scanning the QR code on the setup page or see Installation Guide for deploying your own server.

3. Start Using

{"tool": "search_messages_globally", "params": {"query": "hello", "limit": 5}}
{"tool": "get_messages", "params": {"chat_id": "me", "limit": 10}}
{"tool": "send_message", "params": {"chat_id": "me", "message": "Hello!"}}

Deploy to Remote Server

Deploy your own MCP server on a VDS — see Installation Guide for step-by-step instructions.

Available Tools

Tool	Purpose	Key Features
search_messages_globally	Search across all chats	Multi-term queries, date filtering, chat type filtering
get_messages	Unified message retrieval	Search/browse, read by IDs, get replies (posts/topics/messages), date filtering in all modes
send_message	Send new message	File attachments (URLs/local/data URIs), classic formatting (markdown/html), parse_mode=rich Rich Messages, reply to forum topics
edit_message	Edit existing message	Classic or parse_mode=rich formatting
find_chats	Find users/groups/channels	Multi-term search, contact discovery, folder filtering, username/phone lookup
get_chat_info	Get detailed profile info	Member counts, bio/about, online status, forum topics, common groups, enriched data
send_message_to_phone	Message phone numbers	Auto-contact management, optional cleanup, file support (URLs/data URIs), parse_mode=rich
invoke_mtproto	Direct Telegram API (power user)	Raw MTProto methods, entity resolution, PII/credential fields dropped by default (include_sensitive=true for raw) — see MTProto Bridge

See Tools Reference for detailed documentation with examples.

Documentation

• Installation Guide - Local setup and remote server deployment
• Tools Reference - Complete tools documentation
• MTProto Bridge - Direct API access via curl
• Contributing - Guidelines for contributors
• Security - Security features and best practices

Telemetry

Anonymous tool telemetry since v0.30.1 — heartbeat every 6h, no credentials or message content collected. Opt out with DO_NOT_TRACK=1. See ADR 0005.

Auth flow telemetry since v0.38.0 — atomic events during setup (phone, QR, bot token, reauthorize). Buffered flush on flow completion. See ADR 0008.

License

MIT License - see LICENSE

mcp-name: io.github.leshchenko1979/fast-mcp-telegram