Discord Automation via Rube MCP

Automate Discord operations through Composio's Discord/Discordbot toolkits via Rube MCP.

Toolkit docs: composio.dev/toolkits/discord

Prerequisites

• Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
• Active Discord connection via RUBE_MANAGE_CONNECTIONS with toolkits discord and discordbot
• Always call RUBE_SEARCH_TOOLS first to get current tool schemas

Setup

Get Rube MCP: Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.

1. Verify Rube MCP is available by confirming RUBE_SEARCH_TOOLS responds
2. Call RUBE_MANAGE_CONNECTIONS with toolkit discordbot (bot operations) or discord (user operations)
3. If connection is not ACTIVE, follow the returned auth link to complete Discord auth
4. Confirm connection status shows ACTIVE before running any workflows

Core Workflows

1. Send Messages

When to use: User wants to send messages to channels or DMs

Tool sequence:

1. DISCORD_LIST_MY_GUILDS - List guilds the bot belongs to [Prerequisite]
2. DISCORDBOT_LIST_GUILD_CHANNELS - List channels in a guild [Prerequisite]
3. DISCORDBOT_CREATE_MESSAGE - Send a message [Required]
4. DISCORDBOT_UPDATE_MESSAGE - Edit a sent message [Optional]

Key parameters:

• channel_id: Channel snowflake ID
• content: Message text (max 2000 characters)
• embeds: Array of embed objects for rich content
• guild_id: Guild ID for channel listing

Pitfalls:

• Bot must have SEND_MESSAGES permission in the channel
• High-frequency sends can hit per-route rate limits; respect Retry-After headers
• Only messages sent by the same bot can be edited

2. Send Direct Messages

When to use: User wants to DM a Discord user

Tool sequence:

1. DISCORDBOT_CREATE_DM - Create or get DM channel [Required]
2. DISCORDBOT_CREATE_MESSAGE - Send message to DM channel [Required]

Key parameters:

• recipient_id: User snowflake ID for DM
• channel_id: DM channel ID from CREATE_DM

Pitfalls:

• Cannot DM users who have DMs disabled or have blocked the bot
• CREATE_DM returns existing channel if one already exists

3. Manage Roles

When to use: User wants to create, assign, or remove roles

Tool sequence:

1. DISCORDBOT_CREATE_GUILD_ROLE - Create a new role [Optional]
2. DISCORDBOT_ADD_GUILD_MEMBER_ROLE - Assign role to member [Optional]
3. DISCORDBOT_DELETE_GUILD_ROLE - Delete a role [Optional]
4. DISCORDBOT_GET_GUILD_MEMBER - Get member details [Optional]
5. DISCORDBOT_UPDATE_GUILD_MEMBER - Update member (roles, nick, etc.) [Optional]

Key parameters:

• guild_id: Guild snowflake ID
• user_id: User snowflake ID
• role_id: Role snowflake ID
• name: Role name
• permissions: Bitwise permission value
• color: RGB color integer

Pitfalls:

• Role assignment requires MANAGE_ROLES permission
• Target role must be lower in hierarchy than bot's highest role
• DELETE permanently removes the role from all members

4. Manage Webhooks

When to use: User wants to create or use webhooks for external integrations

Tool sequence:

1. DISCORDBOT_GET_GUILD_WEBHOOKS / DISCORDBOT_LIST_CHANNEL_WEBHOOKS - List webhooks [Optional]
2. DISCORDBOT_CREATE_WEBHOOK - Create a new webhook [Optional]
3. DISCORDBOT_EXECUTE_WEBHOOK - Send message via webhook [Optional]
4. DISCORDBOT_UPDATE_WEBHOOK - Update webhook settings [Optional]

Key parameters:

• webhook_id: Webhook ID
• webhook_token: Webhook secret token
• channel_id: Channel for webhook creation
• name: Webhook name
• content/embeds: Message content for execution

Pitfalls:

• Webhook tokens are secrets; handle securely
• Webhooks can post with custom username and avatar per message
• MANAGE_WEBHOOKS permission required for creation

5. Manage Reactions

When to use: User wants to view or manage message reactions

Tool sequence:

1. DISCORDBOT_LIST_MESSAGE_REACTIONS_BY_EMOJI - List users who reacted [Optional]
2. DISCORDBOT_DELETE_ALL_MESSAGE_REACTIONS - Remove all reactions [Optional]
3. DISCORDBOT_DELETE_ALL_MESSAGE_REACTIONS_BY_EMOJI - Remove specific emoji reactions [Optional]
4. DISCORDBOT_DELETE_USER_MESSAGE_REACTION - Remove specific user's reaction [Optional]

Key parameters:

• channel_id: Channel ID
• message_id: Message snowflake ID
• emoji_name: URL-encoded emoji or name:id for custom emojis
• user_id: User ID for specific reaction removal

Pitfalls:

• Unicode emojis must be URL-encoded (e.g., '%F0%9F%91%8D' for thumbs up)
• Custom emojis use name:id format
• DELETE_ALL requires MANAGE_MESSAGES permission

Common Patterns

Snowflake IDs

Discord uses snowflake IDs (64-bit integers as strings) for all entities:

• Guilds, channels, users, roles, messages, webhooks

Permission Bitfields

Permissions are combined using bitwise OR:

• SEND_MESSAGES = 0x800
• MANAGE_ROLES = 0x10000000
• MANAGE_MESSAGES = 0x2000
• ADMINISTRATOR = 0x8

Pagination

• Most list endpoints support limit, before, after parameters
• Messages: max 100 per request
• Reactions: max 100 per request, use after for pagination

Known Pitfalls

Bot vs User Tokens:

• discordbot toolkit uses bot tokens; discord uses user OAuth
• Bot operations are preferred for automation

Rate Limits:

• Discord enforces per-route rate limits
• Respect Retry-After headers on 429 responses

Quick Reference

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