mcpField
M
MCP Server Resend

MCP Server Resend

Local
github.com/HawsteinCommunication7Updated 80w ago
Repository

About MCP Server Resend

An MCP server that lets LLMs send email through the Resend API. It supports scheduled delivery and attachments, with sender and reply-to addresses configurable through inputs or environment variables.

Key features

  1. 01Send plain-text email through Resend
  2. 02Set recipient, subject, and content
  3. 03Schedule email delivery
  4. 04Attach local or remote files
  5. 05Configure sender and reply-to addresses

Use cases

  1. 01Send an email drafted by an LLM
  2. 02Schedule an email for later delivery
  3. 03Include local or internet-hosted attachments

MCP support

Exposes a `send_email` tool to MCP clients, which sends messages through the Resend API. The tool accepts delivery timing and attachment details.

#mathgpt#math-solver#math-assistant

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

mcp.json · Universal config
{
  "mcpServers": {
    "resend": {
      "command": "npx",
      "args": [
        "-y",
        "resend-mcp"
      ],
      "env": {
        "RESEND_API_KEY": "<RESEND_API_KEY>",
        "SENDER_EMAIL_ADDRESS": "<SENDER_EMAIL_ADDRESS>",
        "REPLY_TO_EMAIL_ADDRESSES": "<REPLY_TO_EMAIL_ADDRESSES>"
      }
    }
  }
}
Run commandnpx -y resend-mcp
Environment variables to set
RESEND_API_KEYSecret
SENDER_EMAIL_ADDRESS
REPLY_TO_EMAIL_ADDRESSES

Local servers need a runtime on your machine (e.g. Node.js 18+). Config file locations differ by client; see your client’s docs.

Packages
npmresend-mcp

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

From the project README

MCP Server Resend

A MCP server for Resend API. Let LLMs compose and send emails for you.

Environment Variables

  • RESEND_API_KEY (string, required): Your Resend API key
  • SENDER_EMAIL_ADDRESS (string, required): Sender email address
  • REPLY_TO_EMAIL_ADDRESSES (string, optional): Comma-separated list of reply-to email addresses

Available Tools

  • send_email - Send an email using the Resend API
    • Inputs:
      • to (string): Recipient email address
      • subject (string): Email subject line
      • content (string): Plain text email content
      • from (string, optional): Sender email address (uses SENDER_EMAIL_ADDRESS if not provided)
      • replyTo (array, optional): Reply-to email addresses (uses REPLY_TO_EMAIL_ADDRESSES if not provided)
      • scheduledAt (string, optional): Scheduled email delivery time
      • attachments (array, optional): List of attachments, each attachment must have:
        • filename (string): Name of the attachment file
        • localPath (string): Absolute path to a local file on user's computer (required if remoteUrl not provided)
        • remoteUrl (string): URL to a file on the internet (required if localPath not provided)

Getting an API Key

  1. Sign up for a Resend account
  2. Generate your API key from the Resend dashboard

Note: Free tier available with 3000 emails per month.

Installation

Using Clinde (recommended)

The easiest way to use Resend MCP Server is through the Clinde desktop app. Simply download and install Clinde, then:

  1. Open the Clinde app
  2. Navigate to the Servers page
  3. Find resend-mcp and click Install

That's it! No technical knowledge required - Clinde handles all the installation and configuration for you seamlessly.

Using Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "resend-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "resend-mcp"
      ],
      "env": {
        "RESEND_API_KEY": "YOUR_RESEND_API_KEY_HERE (string, required)",
        "SENDER_EMAIL_ADDRESS": "YOUR_SENDER_EMAIL_ADDRESS_HERE (string, required)",
        "REPLY_TO_EMAIL_ADDRESSES": "YOUR_REPLY_TO_EMAIL_ADDRESSES_HERE (string, optional, comma delimited)"
      }
    }
  }
}

License

This MCP server is licensed under the MIT License. This means you are free to use, modify, and distribute the software, subject to the terms and conditions of the MIT License. For more details, please see the LICENSE file in the project repository.

Comments

Markdown supported

New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.