A Model Context Protocol (MCP) server implementation for Mailgun, enabling MCP-compatible AI clients like Claude Desktop to interract with the service.

• Node.js (v18 or higher)
• Git
• Claude Desktop (for Claude integration)
• Mailgun account and an API key

1. Clone the repository:

   git clone https://github.com/mailgun/mailgun-mcp-server.git
   cd mailgun-mcp-server

2. Install dependencies and build:

   npm install

3. Configure Claude Desktop:

   Create or modify the config file:

   • MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%/Claude/claude_desktop_config.json

   Add the following configuration:

   {
       "mcpServers": {
           "mailgun": {
               "command": "node",
               "args": ["CHANGE/THIS/PATH/TO/mailgun-mcp-server/src/mailgun-mcp.js"],
               "env": {
                   "MAILGUN_API_KEY": "YOUR-mailgun-api-key"
               }
           }
       }
   }

Run the local test suite with:

NODE_ENV=test npm test

Note: sending an email currently (2025-03-18) seems to require a paid account with Anthropic. You'll get a silent failure on the free account

Can you send an email to EMAIL_HERE with a funny email body that makes it sound like it's from the IT Desk from Office Space?
Please use the sending domain DOMAIN_HERE, and make the email from "postmaster@DOMAIN_HERE"!

Would you be able to make a chart with email delivery statistics for the past week?

The MCP server communicates over stdio, please refer to Debugging section of the Model Context Protocol.

LICENSE file for details

We welcome contributions! Please feel free to submit a Pull Request.