Telegram MCP Server is a full-featured integration for Claude, Cursor, and any MCP-compatible client, powered by Telethon and the Model Context Protocol. It exposes a comprehensive suite of Telegram tools, enabling programmatic interaction with Telegram for messaging, group management, and data retrieval. The server offers chat and group management (get_chats, list_chats, create_group, create_channel, edit_chat_title, leave_chat, get_participants, get_admins, invite links, join by link, subscribe_public_channel), messaging operations (get_messages, list_messages, send_message, reply_to_message, edit_message, delete_message, forward_message, pin_message, unpin_message, mark_as_read, get_message_context, get_history, get_pinned_messages), and discovery features (search_public_chats, search_messages, resolve_username). It also provides polls, inline keyboards (list_inline_buttons, press_inline_button) and contact/user management (list_contacts, add_contact, delete_contact, block/unblock, import/export). Input validation for chat_id and user_id improves robustness, and detailed error handling logs issues to mcp_errors.log. The project runs via uv locally or in Docker, and configures credentials through .env. By keeping processing local, it avoids sending data outside Telegram’s API, making it suitable for MCP workflows in Claude/Cursor environments.