Resend MCP Server

# Resend MCP Server A Model Context Protocol (MCP) server implementation for the Resend email service. ## Features - Send emails using Resend through a standardized MCP interface - TypeScript support ## Prerequisites - A Resend API key (get one at [resend.com](https://resend.com)) - Node.js 18 or later ## Installation 1. Clone the repository 2. Install dependencies: ```bash npm install ``` ## Configuration Create a `.env` file in the root directory with your Resend API key: ```env RESEND_API_KEY=your_api_key_here PORT=3000 # Optional, defaults to 3000 ``` ## Development Status The server implementation is currently blocked by TypeScript type issues with the MCP SDK. The following issues need to be resolved: 1. The `Server` class from `@modelcontextprotocol/sdk` is not properly exposing its request handling methods in the TypeScript types. 2. The exact method name for handling requests needs to be determined (tried: `handleRequest`, `handle`, `receiveMessage`, `receive`, `processRequest`). ### Next Steps 1. Check the MCP SDK documentation or source code for the correct method name 2. Update the TypeScript types in the SDK if they are incorrect 3. Consider using JavaScript temporarily until the types are fixed ## Usage ### Development ```bash bun run dev ``` ### Production ```bash bun run start ``` ### Build ```bash bun run build ``` ## API The server exposes the following MCP function: ### send-email Sends an email using Resend. Parameters: - `from` (required): Sender email address - `to` (required): Recipient email address - `subject` (required): Email subject - `html` (optional): Email content in HTML format - `text` (optional): Email content in plain text format Example request: ```json { "method": "send-email", "params": { "from": "you@example.com", "to": "recipient@example.com", "subject": "Hello from MCP", "html": "<h1>Hello</h1><p>This is a test email.</p>" } } ``` ## License MIT