Lemon Email MCP Server

A Model Context Protocol (MCP) server that provides email sending capabilities through the Lemon Email service. This allows AI agents and applications to send transactional emails programmatically.

Features

🍋 Lemon Email Integration: Send emails through the Lemon Email API
🤖 MCP Compatible: Works with any MCP-compatible AI agent or application
⚡ Easy Setup: Simple configuration with environment variables
🧪 Built-in Testing: Includes test client and standalone testing mode
🐍 Pure Python: No complex dependencies

Quick Start

Installation

# Clone the repository
git clone https://github.com/YOUR_USERNAME/lemon-email-mcp.git
cd lemon-email-mcp

# Install dependencies
pip install -r requirements.txt

# Set your API key
export LEMON_EMAIL_API_KEY="your-api-key-here"

# Test the server
python simple_mcp_server.py test

Usage as MCP Server

Start the MCP server:

python simple_mcp_server.py

The server provides one tool:

send_email: Send transactional emails via Lemon Email API

Configuration

Set the following environment variable:

LEMON_EMAIL_API_KEY: Your Lemon Email API key (required)
LEMON_EMAIL_API_BASE_URL: API base URL (optional, defaults to Lemon Email API)

Integration Examples

Continue.dev (VS Code)

mcpServers:
  - name: lemon-email
    command: python
    args:
      - /path/to/simple_mcp_server.py
    env:
      LEMON_EMAIL_API_KEY: your-api-key

Claude Desktop

{
  "mcpServers": {
    "lemon-email": {
      "command": "python",
      "args": ["/path/to/simple_mcp_server.py"],
      "env": {
        "LEMON_EMAIL_API_KEY": "your-api-key"
      }
    }
  }
}

API Reference

send_email Tool

Send an email using the Lemon Email service.

Parameters:

to (string, required): Recipient email address
subject (string, required): Email subject line
body (string, required): Email body content
fromemail (string, required): Sender email address
fromname (string, optional): Sender name (default: "Email Assistant")
toname (string, optional): Recipient name
tag (string, optional): Email tag for tracking (default: "mcp-agent")
variables (object, optional): Template variables
replyto (string, optional): Reply-to email address

Example:

{
  "name": "send_email",
  "arguments": {
    "to": "recipient@example.com",
    "subject": "Hello from AI Agent",
    "body": "This email was sent by an AI agent!",
    "fromemail": "sender@example.com",
    "fromname": "AI Assistant"
  }
}

Development

Testing

Run the comprehensive test suite:

python mcp_client_test.py

Run standalone email test:

python simple_mcp_server.py test

Project Structure

lemon-email-mcp/
├── simple_mcp_server.py    # Main MCP server
├── mcp_client_test.py      # Test client
├── requirements.txt        # Dependencies
├── README.md              # This file
└── LICENSE               # MIT License

License

MIT License - see LICENSE file for details.

Contributing

Fork the repository
Create your feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request

Support

🐛 Issues: GitHub Issues
📧 Email: manojk030303@gmail.com
📖 MCP Docs: Model Context Protocol

Built with ❤️ for the AI agent ecosystem.

This server cannot be installed

security - not tested

license - permissive license

quality - not tested

How are these scores calculated?

remote-capable server

The server can be hosted and run remotely because it primarily relies on remote services or has no dependency on the local environment.

Enables AI agents to send transactional emails programmatically through the Lemon Email API. Provides simple email sending capabilities with customizable sender information, recipients, and content.

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