Discord Bot MCP server

This Discord MCP server integrates with Mastra's MCP Bot component to provide intelligent assistance and answer questions about Mastra.ai through Discord. It handles interactions, commands, and routing between Discord and the Mastra component.

Prerequisites

• Node.js v20.0+
• npm
• Discord bot token
• Access to discord-mcp-bot component

Installation

1. Clone the repository:

   git clone https://github.com/mastra-ai/discord-mcp-server
   cd discord-mcp-server
   

2. Install dependencies:

   npm install
   

3. Create a .env file with your Discord credentials:

   DISCORD_BOT_TOKEN=your_discord_bot_token  
   DISCORD_CLIENT_ID=your_discord_client_id
   DISCORD_PUBLIC_KEY=your_discord_public_key
   MASTRA_URL=your_mastra_url
   

4. Run the server:

   npm start
   

Setting Up a Discord Bot

1. Create a Discord application:

   • Go to Discord Developer Portal
   • Click "New Application" and give it a name
   • Navigate to the "Bot" tab and click "Add Bot"

2. Configure bot permissions:

   • Under "Privileged Gateway Intents", enable:
     • Message Content Intent
     • Server Members Intent
     • Direct Message Intent

3. Get your bot token:

   • In the Bot tab, click "Reset Token" or "Copy" to get your bot token
   • Add this token to your .env file as DISCORD_BOT_TOKEN

4. Invite the bot to your server:

   • Go to the "OAuth2" tab, then "URL Generator"
   • Select "bot" under scopes
   • Select required permissions:
     • Read Messages/View Channels
     • Send Messages
     • Read Message History
   • Copy the generated URL and open it in your browser
   • Select your server and authorize the bot

Features and Usage

Available Commands

The bot supports the following slash commands:

• /ask: Ask the bot a question
• /cleardm: Clear the bot messages in the user's DMs

Direct Messages

Users can send direct messages to the bot to ask questions without using slash commands. The bot will respond intelligently using the Mastra MCP component.

Thread Support

The bot creates threads for conversations to provide a better user experience and keep discussions organized.

Troubleshooting

If you encounter issues with the bot:

1. Check that all environment variables are correctly set in your .env file
2. Ensure the bot has the proper permissions in your Discord server
3. Verify that the Mastra MCP component is properly connected and running

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "discord-mcp-server" '{"command":"npx","args":["-y","discord-mcp-server"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "discord-mcp-server": {
            "command": "npx",
            "args": [
                "-y",
                "discord-mcp-server"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "discord-mcp-server": {
            "command": "npx",
            "args": [
                "-y",
                "discord-mcp-server"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect