Resend Email
About
Enables AI to compose and send emails through the Resend API with customizable sender addresses, reply-to fields, and scheduled delivery options
Details
- Author
- hawstein
- Repository
- Hawstein/resend-mcp
- GitHub stars
- 1
- Downloads
- 3,365
- License
- MIT License
- Categories
- Design, Developer Tools, AI, API, Infrastructure, Frontend, Other
Jump to
- 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
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Resend EmailCommand (node, npx, python, etc.)npxArguments-
Argument 1
-y -
Argument 2
resend-mcp
Environment-
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)
Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
-
Argument 1
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
- 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
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.
send_email
Send an email using the Resend API. Parameters: to (string), subject (string), content (string), from (optional string), replyTo (optional array), scheduledAt (optional string), attachments (optional array)
- 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)
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"resend email": {
"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)"
},
"args": [
"-y",
"resend-mcp"
],
"command": "npx"
}
}
}Linux
{
"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)"
},
"args": [
"-y",
"resend-mcp"
],
"command": "npx"
}Macos
{
"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)"
},
"args": [
"-y",
"resend-mcp"
],
"command": "npx"
}Windows
{
"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)"
},
"args": [
"/c",
"npx",
"-y",
"resend-mcp"
],
"command": "cmd"
}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.
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