Mailgun MCP Server

Overview

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

Prerequisites

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

Quick Start

Manual Installation

Clone the repository:
git clone https://github.com/mailgun/mailgun-mcp-server.git cd mailgun-mcp-server
Install dependencies and build:
npm install
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" } } } }

Testing

Run the local test suite with:

NODE_ENV=test npm test

Sample Prompts with Claude

Send an Email

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"!

Fetch and Visualize Sending Statistics

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

Debugging

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

License

LICENSE file for details

Contributing

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

This server cannot be installed

security - not tested

license - permissive license

quality - not tested

local-only server

The server can only run on the client's local machine because it depends on local resources.

A Model Context Protocol server implementation that enables AI assistants like Claude Desktop to interact with Mailgun email services, allowing users to send emails and visualize email delivery statistics through natural language.

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