MCP-Discord

A Discord MCP (Model Context Protocol) server that enables AI assistants to interact with the Discord platform.

Overview

MCP-Discord provides the following Discord-related functionalities:

• Login to Discord bot

• Get server information

• Read/delete channel messages

• Send messages to specified channels (using either channel IDs or channel names)

• Retrieve forum channel lists

• Create/delete/reply to forum posts

• Create/delete text channels

• Add/remove message reactions

• Create/edit/delete/use webhooks

Table of Contents

• Prerequisites

• Installation

• Configuration

• Tools Documentation

  • Basic Functions

  • Channel Management

  • Forum Functions

  • Messages and Reactions

  • Webhook Management

• Development

Prerequisites

• Node.js (v16.0.0 or higher)

• npm (v7.0.0 or higher)

• A Discord bot with appropriate permissions

  • Bot token (obtainable from the Discord Developer Portal)

  • Message Content Intent enabled

  • Server Members Intent enabled

  • Presence Intent enabled

• Permissions required in your Discord server:

  Easiest Setup

  • Administrator (Recommended for quick setup and full functionality)

  Or, select only the required permissions

  • Send Messages

  • Create Public Threads

  • Send Messages in Threads

  • Manage Messages

  • Manage Threads

  • Manage Channels

  • Manage Webhooks

  • Add Reactions

  • View Channel

• Add your Discord bot to your server

  • To add your Discord bot to your server, use one of the following invite links (replace INSERT_CLIENT_ID_HERE with your bot's client ID):

    • Administrator (full access): https://discord.com/oauth2/authorize?client_id=INSERT_CLIENT_ID_HERE&scope=bot&permissions=8

    • Custom permissions (minimum required): https://discord.com/oauth2/authorize?client_id=INSERT_CLIENT_ID_HERE&scope=bot&permissions=52076489808

Note:
According to Discord's security model, a bot can only access information from servers it has been explicitly added to.
If you want to use this MCP server to access a specific Discord server, you must add the bot to that server first.
Use the invite link below to add the bot to your target server.

Installation

Installing via NPM

You can use it with the following command:

For more details, you can check out the NPM Package.

Manual Installation

Configuration

All configuration is now handled via the src/config.ts file, which supports both environment variables and command-line arguments. The following options are available:

You can set these options via environment variables or command-line arguments:

Environment variables:

Command-line arguments:

If both are provided, command-line arguments take precedence.

Sampling

The Sampling feature enables bi-directional communication between Discord and the MCP server, allowing the bot to listen to messages and respond automatically. This is controlled by the SAMPLING_ENABLED config option (enabled by default).

How it works:

• When enabled, the bot listens for new messages and bot mentions in Discord channels.

• If a user sends a message, the bot can process it and respond using the MCP protocol.

• When mentioned, the bot can optionally request an AI-generated contextual reaction emoji (disabled by default, enable with REACTION_SAMPLING_ENABLED=true).

• All bot responses are sent as replies to the original message for better context.

• Rate limiting is enforced per user (see DEFAULT_RATE_LIMIT_SECONDS).

• Long responses are split into chunks (see DEFAULT_MESSAGE_CHUNK_SIZE).

Disabling Sampling:

• Set SAMPLING_ENABLED=false in your environment or omit the --sampling flag.

• The bot will not listen to or respond to messages automatically.

Message Filtering:

Control which messages the bot responds to:

• RESPOND_TO_MENTIONS_ONLY (default: true): Only respond when the bot is mentioned.

• BLOCK_DMS (default: true): Ignore all direct messages.

• BLOCKED_GUILDS: Comma-separated guild IDs to ignore (e.g., "123456789,987654321").

• BANNED_USERS: Comma-separated user IDs to ignore (e.g., "111111111,222222222").

Reaction Sampling:

• REACTION_SAMPLING_ENABLED (default: false): Enable AI-generated contextual reactions when bot is mentioned. When disabled, no reaction is added.

• REACTION_TIMEOUT_MS (default: 3000): Timeout (milliseconds) for AI-generated reaction requests.

• REACTION_FALLBACK_EMOJI (default: "🤔"): Emoji to use when reaction sampling times out or fails.

Advanced options:

• DEFAULT_RATE_LIMIT_SECONDS: Minimum seconds between sampling responses per user.

• DEFAULT_MESSAGE_CHUNK_SIZE: Maximum size of each message chunk sent in response.

Tools Documentation

Basic Functions

• discord_send: Send a message to a specified channel (supports both channel ID and channel name)

• discord_get_server_info: Get Discord server information

Channel Management

• discord_create_text_channel: Create a text channel

• discord_delete_channel: Delete a channel

Forum Functions

• discord_get_forum_channels: Get a list of forum channels

• discord_create_forum_post: Create a forum post

• discord_get_forum_post: Get a forum post

• discord_reply_to_forum: Reply to a forum post

• discord_delete_forum_post: Delete a forum post

Messages and Reactions

• discord_read_messages: Read channel messages

• discord_add_reaction: Add a reaction to a message

• discord_add_multiple_reactions: Add multiple reactions to a message

• discord_remove_reaction: Remove a reaction from a message

• discord_delete_message: Delete a specific message from a channel

Webhook Management

• discord_create_webhook: Creates a new webhook for a Discord channel

• discord_send_webhook_message: Sends a message to a Discord channel using a webhook

• discord_edit_webhook: Edits an existing webhook for a Discord channel

• discord_delete_webhook: Deletes an existing webhook for a Discord channel

Development