This MCP server implementation allows Claude Desktop to interact with Mailgun services, enabling capabilities like sending emails and checking statistics via natural language commands.
Clone the repository:
git clone https://github.com/mailgun/mailgun-mcp-server.git
cd mailgun-mcp-server
Install dependencies:
npm install
Create or modify the Claude Desktop configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%/Claude/claude_desktop_config.json
Add the following configuration, making sure to update the path and API key:
{
"mcpServers": {
"mailgun": {
"command": "node",
"args": ["PATH/TO/mailgun-mcp-server/src/mailgun-mcp.js"],
"env": {
"MAILGUN_API_KEY": "YOUR-mailgun-api-key"
}
}
}
}
To send an email using natural language, try the following prompt:
Can you send an email to recipient@example.com with a funny email body that makes it sound like it's from the IT Desk from Office Space?
Please use the sending domain example.com, and make the email from "postmaster@example.com"!
Note: Sending emails currently requires a paid Anthropic account.
To visualize your email delivery statistics:
Would you be able to make a chart with email delivery statistics for the past week?
If you encounter issues, refer to the MCP debugging guidelines at https://modelcontextprotocol.io/docs/tools/debugging.
The MCP server communicates over stdio, so check Claude Desktop logs for any communication errors between Claude and the MCP server.
To add this MCP server to Claude Code, run this command in your terminal:
claude mcp add-json "mailgun" '{"command":"node","args":["CHANGE/THIS/PATH/TO/mailgun-mcp-server/src/mailgun-mcp.js"],"env":{"MAILGUN_API_KEY":"YOUR-mailgun-api-key"}}'
See the official Claude Code MCP documentation for more details.
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.
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": {
"mailgun": {
"command": "node",
"args": [
"CHANGE/THIS/PATH/TO/mailgun-mcp-server/src/mailgun-mcp.js"
],
"env": {
"MAILGUN_API_KEY": "YOUR-mailgun-api-key"
}
}
}
}
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.
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.
To add this MCP server to Claude Desktop:
1. Find your configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json
~/.config/Claude/claude_desktop_config.json
2. Add this to your configuration file:
{
"mcpServers": {
"mailgun": {
"command": "node",
"args": [
"CHANGE/THIS/PATH/TO/mailgun-mcp-server/src/mailgun-mcp.js"
],
"env": {
"MAILGUN_API_KEY": "YOUR-mailgun-api-key"
}
}
}
}
3. Restart Claude Desktop for the changes to take effect