Telegram MCP Server

🤖 MCP in Action

Here's a demonstration of the Telegram MCP capabilities in Claude:

Basic usage example:

Telegram MCP in action

Example: Asking Claude to analyze chat history and send a response:

Telegram MCP Request

Successfully sent message to the group:

Telegram MCP Result

As you can see, the AI can seamlessly interact with your Telegram account, retrieving and displaying your chats, messages, and other data in a natural way.

A full-featured Telegram integration for Claude, Cursor, and any MCP-compatible client, powered by Telethon and the Model Context Protocol (MCP). This project lets you interact with your Telegram account programmatically, automating everything from messaging to group management.

🚀 Features & Tools

This MCP server exposes a huge suite of Telegram tools. Every major Telegram/Telethon feature is available as a tool!

Chat & Group Management

get_chats(page, page_size): Paginated list of chats
list_chats(chat_type, limit): List chats with metadata and filtering
get_chat(chat_id): Detailed info about a chat
create_group(title, user_ids): Create a new group
create_channel(title, about, megagroup): Create a channel or supergroup
edit_chat_title(chat_id, title): Change chat/group/channel title
delete_chat_photo(chat_id): Remove chat/group/channel photo
leave_chat(chat_id): Leave a group or channel
get_participants(chat_id): List all participants
get_admins(chat_id): List all admins
get_banned_users(chat_id): List all banned users
promote_admin(chat_id, user_id): Promote user to admin
demote_admin(chat_id, user_id): Demote admin to user
ban_user(chat_id, user_id): Ban user
unban_user(chat_id, user_id): Unban user
get_invite_link(chat_id): Get invite link
export_chat_invite(chat_id): Export invite link
import_chat_invite(hash): Join chat by invite hash
join_chat_by_link(link): Join chat by invite link

Messaging

get_messages(chat_id, page, page_size): Paginated messages
list_messages(chat_id, limit, search_query, from_date, to_date): Filtered messages
send_message(chat_id, message): Send a message
reply_to_message(chat_id, message_id, text): Reply to a message
edit_message(chat_id, message_id, new_text): Edit your message
delete_message(chat_id, message_id): Delete a message
forward_message(from_chat_id, message_id, to_chat_id): Forward a message
pin_message(chat_id, message_id): Pin a message
unpin_message(chat_id, message_id): Unpin a message
mark_as_read(chat_id): Mark all as read
get_message_context(chat_id, message_id, context_size): Context around a message
get_history(chat_id, limit): Full chat history
get_pinned_messages(chat_id): List pinned messages
get_last_interaction(contact_id): Most recent message with a contact

Contact Management

list_contacts(): List all contacts
search_contacts(query): Search contacts
add_contact(phone, first_name, last_name): Add a contact
delete_contact(user_id): Delete a contact
block_user(user_id): Block a user
unblock_user(user_id): Unblock a user
import_contacts(contacts): Bulk import contacts
export_contacts(): Export all contacts as JSON
get_blocked_users(): List blocked users
get_contact_ids(): List all contact IDs
get_direct_chat_by_contact(contact_query): Find direct chat with a contact
get_contact_chats(contact_id): List all chats with a contact

User & Profile

get_me(): Get your user info
update_profile(first_name, last_name, about): Update your profile
delete_profile_photo(): Remove your profile photo
get_user_photos(user_id, limit): Get a user's profile photos
get_user_status(user_id): Get a user's online status

Media

get_media_info(chat_id, message_id): Get info about media in a message

Search & Discovery

search_public_chats(query): Search public chats/channels/bots
search_messages(chat_id, query, limit): Search messages in a chat
resolve_username(username): Resolve a username to ID

Stickers, GIFs, Bots

get_sticker_sets(): List sticker sets
get_bot_info(bot_username): Get info about a bot
set_bot_commands(bot_username, commands): Set bot commands (bot accounts only)

Privacy, Settings, and Misc

get_privacy_settings(): Get privacy settings
set_privacy_settings(key, allow_users, disallow_users): Set privacy settings
mute_chat(chat_id): Mute notifications
unmute_chat(chat_id): Unmute notifications
archive_chat(chat_id): Archive a chat
unarchive_chat(chat_id): Unarchive a chat
get_recent_actions(chat_id): Get recent admin actions

Removed Functionality

Please note that tools requiring direct file path access on the server (send_file, download_media, set_profile_photo, edit_chat_photo, send_voice, send_sticker, upload_file) have been removed from main.py. This is due to limitations in the current MCP environment regarding handling file attachments and local file system paths.

Additionally, GIF-related tools (get_gif_search, get_saved_gifs, send_gif) have been removed due to ongoing issues with reliability in the Telethon library or Telegram API interactions.

📋 Requirements

Python 3.10+
Telethon
MCP Python SDK
Claude Desktop or Cursor (or any MCP client)

🔧 Installation & Setup

1. Fork & Clone

git clone https://github.com/chigwell/telegram-mcp.git
cd telegram-mcp

2. Create a Virtual Environment

python3 -m venv .venv
source .venv/bin/activate  # On Windows: .venv\Scripts\activate
pip install -r requirements.txt

3. Generate a Session String

python3 session_string_generator.py

Follow the prompts to authenticate and update your .env file.

4. Configure .env

Copy .env.example to .env and fill in your values:

TELEGRAM_API_ID=your_api_id_here
TELEGRAM_API_HASH=your_api_hash_here
TELEGRAM_SESSION_NAME=anon
TELEGRAM_SESSION_STRING=your_session_string_here

Get your API credentials at my.telegram.org/apps.

🐳 Running with Docker

If you have Docker and Docker Compose installed, you can build and run the server in a container, simplifying dependency management.

1. Build the Image

From the project root directory, build the Docker image:

docker build -t telegram-mcp:latest .

2. Running the Container

You have two options:

Option A: Using Docker Compose (Recommended for Local Use)

This method uses the docker-compose.yml file and automatically reads your credentials from a .env file.

Create .env File: Ensure you have a .env file in the project root containing your TELEGRAM_API_ID, TELEGRAM_API_HASH, and TELEGRAM_SESSION_STRING (or TELEGRAM_SESSION_NAME). Use .env.example as a template.
Run Compose:
```
docker compose up --build
```
- Use docker compose up -d to run in detached mode (background).
- Press Ctrl+C to stop the server.

Option B: Using docker run

You can run the container directly, passing credentials as environment variables.

docker run -it --rm \
  -e TELEGRAM_API_ID="YOUR_API_ID" \
  -e TELEGRAM_API_HASH="YOUR_API_HASH" \
  -e TELEGRAM_SESSION_STRING="YOUR_SESSION_STRING" \
  telegram-mcp:latest

Replace placeholders with your actual credentials.
Use -e TELEGRAM_SESSION_NAME=your_session_file_name instead of TELEGRAM_SESSION_STRING if you prefer file-based sessions (requires volume mounting, see docker-compose.yml for an example).
The -it flags are crucial for interacting with the server.

⚙️ Configuration for Claude & Cursor

MCP Configuration

Edit your Claude desktop config (e.g. ~/Library/Application Support/Claude/claude_desktop_config.json) or Cursor config (~/.cursor/mcp.json):

{
  "mcpServers": {
    "telegram-mcp": {
      "command": "uv",
      "args": [
        "--directory",
        "/full/path/to/telegram-mcp",
        "run",
        "main.py"
      ]
    }
  }
}

📝 Tool Examples with Code & Output

Below are examples of the most commonly used tools with their implementation and sample output.

Getting Your Chats

@mcp.tool()
async def get_chats(page: int = 1, page_size: int = 20) -> str:
    """
    Get a paginated list of chats.
    Args:
        page: Page number (1-indexed).
        page_size: Number of chats per page.
    """
    try:
        dialogs = await client.get_dialogs()
        start = (page - 1) * page_size
        end = start + page_size
        if start >= len(dialogs):
            return "Page out of range."
        chats = dialogs[start:end]
        lines = []
        for dialog in chats:
            entity = dialog.entity
            chat_id = entity.id
            title = getattr(entity, "title", None) or getattr(entity, "first_name", "Unknown")
            lines.append(f"Chat ID: {chat_id}, Title: {title}")
        return "\n".join(lines)
    except Exception as e:
        logger.exception(f"get_chats failed (page={page}, page_size={page_size})")
        return "An error occurred (code: GETCHATS-ERR-001). Check mcp_errors.log for details."

Example output:

Chat ID: 123456789, Title: John Doe
Chat ID: -100987654321, Title: My Project Group
Chat ID: 111223344, Title: Jane Smith
Chat ID: -200123456789, Title: News Channel

Sending Messages

@mcp.tool()
async def send_message(chat_id: int, message: str) -> str:
    """
    Send a message to a specific chat.
    Args:
        chat_id: The ID of the chat.
        message: The message content to send.
    """
    try:
        entity = await client.get_entity(chat_id)
        await client.send_message(entity, message)
        return "Message sent successfully."
    except Exception as e:
        logger.exception(f"send_message failed (chat_id={chat_id})")
        return "An error occurred (code: SENDMSG-ERR-001). Check mcp_errors.log for details."

Example output:

Message sent successfully.

Getting Chat Invite Links

The get_invite_link function is particularly robust with multiple fallback methods:

@mcp.tool()
async def get_invite_link(chat_id: int) -> str:
    """
    Get the invite link for a group or channel.
    """
    try:
        entity = await client.get_entity(chat_id)
        
        # Try using ExportChatInviteRequest first
        try:
            from telethon.tl import functions
            result = await client(functions.messages.ExportChatInviteRequest(
                peer=entity
            ))
            return result.link
        except AttributeError:
            # If the function doesn't exist in the current Telethon version
            logger.warning("ExportChatInviteRequest not available, using alternative method")
        except Exception as e1:
            # If that fails, log and try alternative approach
            logger.warning(f"ExportChatInviteRequest failed: {e1}")
            
        # Alternative approach using client.export_chat_invite_link
        try:
            invite_link = await client.export_chat_invite_link(entity)
            return invite_link
        except Exception as e2:
            logger.warning(f"export_chat_invite_link failed: {e2}")
            
        # Last resort: Try directly fetching chat info
        try:
            if isinstance(entity, (Chat, Channel)):
                full_chat = await client(functions.messages.GetFullChatRequest(
                    chat_id=entity.id
                ))
                if hasattr(full_chat, 'full_chat') and hasattr(full_chat.full_chat, 'invite_link'):
                    return full_chat.full_chat.invite_link or "No invite link available."
        except Exception as e3:
            logger.warning(f"GetFullChatRequest failed: {e3}")
            
        return "Could not retrieve invite link for this chat."
    except Exception as e:
        logger.exception(f"get_invite_link failed (chat_id={chat_id})")
        return f"Error getting invite link: {e}"

Example output:

https://t.me/+AbCdEfGhIjKlMnOp

Joining Chats via Invite Links

@mcp.tool()
async def join_chat_by_link(link: str) -> str:
    """
    Join a chat by invite link.
    """
    try:
        # Extract the hash from the invite link
        if '/' in link:
            hash_part = link.split('/')[-1]
            if hash_part.startswith('+'):
                hash_part = hash_part[1:]  # Remove the '+' if present
        else:
            hash_part = link
            
        # Try checking the invite before joining
        try:
            # Try to check invite info first (will often fail if not a member)
            invite_info = await client(functions.messages.CheckChatInviteRequest(hash=hash_part))
            if hasattr(invite_info, 'chat') and invite_info.chat:
                # If we got chat info, we're already a member
                chat_title = getattr(invite_info.chat, 'title', 'Unknown Chat')
                return f"You are already a member of this chat: {chat_title}"
        except Exception:
            # This often fails if not a member - just continue
            pass
            
        # Join the chat using the hash
        result = await client(functions.messages.ImportChatInviteRequest(hash=hash_part))
        if result and hasattr(result, 'chats') and result.chats:
            chat_title = getattr(result.chats[0], 'title', 'Unknown Chat')
            return f"Successfully joined chat: {chat_title}"
        return f"Joined chat via invite hash."
    except Exception as e:
        err_str = str(e).lower()
        if "expired" in err_str:
            return "The invite hash has expired and is no longer valid."
        elif "invalid" in err_str:
            return "The invite hash is invalid or malformed."
        elif "already" in err_str and "participant" in err_str:
            return "You are already a member of this chat."
        logger.exception(f"join_chat_by_link failed (link={link})")
        return f"Error joining chat: {e}"

Example output:

Successfully joined chat: Developer Community

Searching Public Chats

@mcp.tool()
async def search_public_chats(query: str) -> str:
    """
    Search for public chats, channels, or bots by username or title.
    """
    try:
        result = await client(functions.contacts.SearchRequest(q=query, limit=20))
        return json.dumps([format_entity(u) for u in result.users], indent=2)
    except Exception as e:
        return f"Error searching public chats: {e}"

Example output:

[
  {
    "id": 123456789,
    "name": "TelegramBot",
    "type": "user",
    "username": "telegram_bot"
  },
  {
    "id": 987654321,
    "name": "Telegram News",
    "type": "user",
    "username": "telegram_news"
  }
]

Getting Direct Chats with Contacts

@mcp.tool()
async def get_direct_chat_by_contact(contact_query: str) -> str:
    """
    Find a direct chat with a specific contact by name, username, or phone.
    
    Args:
        contact_query: Name, username, or phone number to search for.
    """
    try:
        # Fetch all contacts using the correct Telethon method
        result = await client(functions.contacts.GetContactsRequest(hash=0))
        contacts = result.users
        found_contacts = []
        for contact in contacts:
            if not contact:
                continue
            name = f"{getattr(contact, 'first_name', '')} {getattr(contact, 'last_name', '')}".strip()
            username = getattr(contact, 'username', '')
            phone = getattr(contact, 'phone', '')
            if (contact_query.lower() in name.lower() or 
                (username and contact_query.lower() in username.lower()) or 
                (phone and contact_query in phone)):
                found_contacts.append(contact)
        if not found_contacts:
            return f"No contacts found matching '{contact_query}'."
        # If we found contacts, look for direct chats with them
        results = []
        dialogs = await client.get_dialogs()
        for contact in found_contacts:
            contact_name = f"{getattr(contact, 'first_name', '')} {getattr(contact, 'last_name', '')}".strip()
            for dialog in dialogs:
                if isinstance(dialog.entity, User) and dialog.entity.id == contact.id:
                    chat_info = f"Chat ID: {dialog.entity.id}, Contact: {contact_name}"
                    if getattr(contact, 'username', ''):
                        chat_info += f", Username: @{contact.username}"
                    if dialog.unread_count:
                        chat_info += f", Unread: {dialog.unread_count}"
                    results.append(chat_info)
                    break
        
        if not results:
            return f"Found contacts matching '{contact_query}', but no direct chats with them."
        
        return "\n".join(results)
    except Exception as e:
        return f"Error searching for direct chat: {e}"

Example output:

Chat ID: 123456789, Contact: John Smith, Username: @johnsmith, Unread: 3

🎮 Usage Examples

"Show my recent chats"
"Send 'Hello world' to chat 123456789"
"Add contact with phone +1234567890, name John Doe"
"Create a group 'Project Team' with users 111, 222, 333"
"Download the media from message 42 in chat 123456789"
"Mute notifications for chat 123456789"
"Promote user 111 to admin in group 123456789"
"Search for public channels about 'news'"
"Join the Telegram group with invite link https://t.me/+AbCdEfGhIjK"
"Send a sticker to my Saved Messages"
"Get all my sticker sets"

You can use these tools via natural language in Claude, Cursor, or any MCP-compatible client.

🧠 Error Handling & Robustness

This implementation includes comprehensive error handling:

Session management: Works with both file-based and string-based sessions
Error reporting: Detailed errors logged to mcp_errors.log
Graceful degradation: Multiple fallback approaches for critical functions
User-friendly messages: Clear, actionable error messages instead of technical errors
Account type detection: Functions that require bot accounts detect and notify when used with user accounts
Invite link processing: Handles various link formats and already-member cases

The code is designed to be robust against common Telegram API issues and limitations.

🛠️ Contribution Guide

Fork this repo: chigwell/telegram-mcp

Clone your fork:

git clone https://github.com/<your-github-username>/telegram-mcp.git

Create a new branch:
```
git checkout -b my-feature
```
Make your changes, add tests/docs if needed.
Push and open a Pull Request to chigwell/telegram-mcp with a clear description.
Tag @chigwell or @l1v0n1 in your PR for review.

🔒 Security Considerations

Never commit your .env or session string.
The session string gives full access to your Telegram account—keep it safe!
All processing is local; no data is sent anywhere except Telegram's API.
Use .env.example as a template and keep your actual .env file private.
Test files are automatically excluded in .gitignore.

🛠️ Troubleshooting

Check logs in your MCP client (Claude/Cursor) and the terminal for errors.
Detailed error logs can be found in mcp_errors.log.
Interpreter errors? Make sure your .venv is created and selected.
Database lock? Use session string authentication, not file-based sessions.
iCloud/Dropbox issues? Move your project to a local path without spaces if you see odd errors.
Regenerate session string if you change your Telegram password or see auth errors.
Bot-only functions will show clear messages when used with regular user accounts.
Test script failures? Check test configuration in .env for valid test accounts/groups.

Telegram MCP Server