MCP Server Resend

Q: How do I get a Resend API key?

Sign up for a Resend account at resend.com, then generate an API key from the Resend dashboard.

@Hawstein

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Basic information

About MCP Server Resend

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

#mathgpt #math-solver #math-assistant

MCP Server Resend config

Add this server to your MCP-compatible client using the configuration below.

{
  "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)"
      }
    }
  }
}

MCP Server Resend tools

Send an email using the Resend API

Overview

What is MCP Server Resend?

MCP Server Resend is an MCP server that integrates with the Resend API. It allows large language models (LLMs) to compose and send emails programmatically.

How to use MCP Server Resend?

Set the required environment variables RESEND_API_KEY and SENDER_EMAIL_ADDRESS. Install the server via Clinde desktop app (recommended) or by adding a configuration entry to Claude Desktop. Once configured, the server exposes the send_email tool, which accepts recipient, subject, content, and optional fields like sender, reply-to, schedule time, and attachments.

Key features of MCP Server Resend

Send emails through the Resend API
Supports plain text email content
Optional scheduling for future delivery
Attachments from local files or remote URLs
Free tier: 3,000 emails per month
Easy installation via Clinde or Claude Desktop

Use cases of MCP Server Resend

AI assistants composing and sending emails on behalf of users
Automated email notifications with scheduling
Sending emails with file attachments from local or remote sources
Enabling reply-to addresses for email conversations

Frequently asked questions

What environment variables are required?

`RESEND_API_KEY` and `SENDER_EMAIL_ADDRESS` are required. `REPLY_TO_EMAIL_ADDRESSES` is optional and accepts comma‑separated addresses.

How do I get a Resend API key?

Can I use this server for free?

Yes. Resend offers a free tier that includes 3,000 emails per month.

How do I install MCP Server Resend?

The easiest way is through the Clinde desktop app: navigate to the Servers page and install *resend‑mcp*. Alternatively, add a configuration entry to `claude_desktop_config.json` using `npx -y resend-mcp`.

Can I attach files to emails?

Yes. The `send_email` tool accepts attachments with a `filename` and either a `localPath` (absolute path on the user’s computer) or a `remoteUrl` (URL to a file on the internet).

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