telegram-connector-service
Interface with the Telegram Bot API for programmatic message transmission, retrieval of bot metadata, and automated management of incoming updates to augment AI assistant communication workflows.
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NexusX-MCP
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Telegram Connector Platform Integration
An implementation of the Model Context Protocol (MCP) server designed to furnish capabilities for engaging with the official Telegram Bot API. This operational unit permits autonomous agents to dispatch textual content, fetch details pertaining to their operational entity, and handle data streams from Telegram.
Available Functionality (Tools)
The Telegram Connector Service exposes the subsequent functions for API interaction:
fetch_bot_identity
Obtains fundamental attributes characterizing the registered bot entity. - Input requirements: None - Output schema: A structured User object detailing the bot's specifications.
transmit_message
Dispatches a message payload to a designated recipient chat.
- chatId: The requisite unique locator for the destination conversation (string or numeric).
- text: The primary content payload of the communication.
- params (optional): Supplementary configuration directives (e.g., formatting instructions like parse_mode, interactive elements like reply_markup, etc.).
poll_for_incoming_data
Fetches awaiting inbound notifications leveraging the long-polling communication pattern.
- params (optional): A dictionary containing configuration overrides:
- offset (optional): The sequence number marking the oldest unretrieved notification.
- limit (optional): Constrains the maximum quantity of updates fetched (range: 1 to 100).
- timeout (optional): Duration, in seconds, for the waiting period (long poll duration).
- allowed_updates (optional): A subset, specified as an array, of update categories to process.
- Output schema: An array of structured Update objects encompassing various event types:
- Standard and modified user messages
- Channel broadcasts
- Business communication records
- Inline query responses
- User interactions with callbacks
- Shipping status inquiries
- Pre-checkout validation events
- Poll creation and response data
- Alterations in chat membership status
- Invitations to join a chat
- Chat boost activations
relay_message
Rebroadcasts a message from one location to another. Note: Certain message types (service messages, content marked as protected) are ineligible for this operation.
- chatId: The destination chat's unique ID or the channel's public handle (e.g., @channelname).
- fromChatId: The origin chat's unique ID or public handle where the message was initially posted.
- messageId: The internal sequential identifier of the message within the source chat.
- params (optional): An object holding optional message augmentation parameters:
- message_thread_id (optional): Identifier for the specific forum topic within a supergroup.
- video_start_timestamp (optional): Sets the initial playback position for forwarded video content.
- disable_notification (optional): Silences the notification sound for recipients.
- protect_content (optional): Prevents recipients from saving or forwarding the relayed content.
- Returns: The successfully transmitted Message object.
Operational Setup
Required Environmental Configuration
This service necessitates the definition of a specific environmental variable:
TELEGRAM_BOT_TOKEN=your_bot_token
Authorization credentials are obtained by engaging with @BotFather within the Telegram application to provision a new bot entity.
Bot Provisioning Sequence
Invoke the /newbot command. @BotFather will solicit a display name and a unique handle, subsequently generating the necessary authentication token.
The bot's display name is the public-facing label.
The handle (username) is utilized for lookups, mentions, and direct links (t.me/...). Handles are restricted to 5-32 alphanumeric characters plus underscores, and must terminate with the suffix 'bot'.
The token is the critical authorization key (e.g., 110201543:AAHdqTcvCH1vGWJxfSeofSAs0K5PALDsaw). This credential grants full control over the bot; maintain its confidentiality.
Crucially, when formulating API calls to api.telegram.org, the token must be prefixed with the string 'bot'.
Development Lifecycle
Standard package initialization:
bash npm install
npm run build
npx @modelcontextprotocol/inspector node dist/index.js
Access the local interface via http://127.0.0.1:6274 to configure the environment and interact with the exposed connectors.
Licensing
The Telegram Connector is distributed under the permissive terms of the MIT License. Users possess the freedom to deploy, modify, and share this asset, subject to the stipulations detailed in the LICENSE artifact.
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