A MCP server for Resend API. Let LLMs compose and send emails for you.
MCP Server Resend is an MCP project maintained in the hawstein/resend-mcp repository. The maintainer describes its purpose as “A MCP server for Resend API. Let LLMs compose and send emails for you”. Read the project documentation for the complete scope.
The documented npm package is resend-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
The example declares RESEND_API_KEY, SENDER_EMAIL_ADDRESS, REPLY_TO_EMAIL_ADDRESSES. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| send_email | Send an email using the Resend API |
| Inputs: | to (string): Recipient email address |
| 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: |
{
"mcpServers": {
"resend-mcp": {
"command": "npx",
"args": [
"-y",
"resend-mcp"
],
"env": {
"RESEND_API_KEY": "YOUR_RESEND_API_KEY",
"SENDER_EMAIL_ADDRESS": "YOUR_SENDER_EMAIL_ADDRESS_HERE (string, required)",
"REPLY_TO_EMAIL_ADDRESSES": "YOUR_REPLY_TO_EMAIL_ADDRESSES_HERE (string, optional, comma delimited)"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| RESEND_API_KEY | Declared in the maintainer’s client configuration. | Yes |
| SENDER_EMAIL_ADDRESS | Declared in the maintainer’s client configuration. | Yes |
| REPLY_TO_EMAIL_ADDRESSES | Declared in the maintainer’s client configuration. | Optional |
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