Email Sending (used By Deploya.dev)

🚀 Sending Emails via MCP 📦

This is a simple MCP server that uses Resend's API to send emails. Why? Now you can have Cursor or Claude Desktop write an email for you and send it immediately without having to copy and paste the email content.

✨ Features

• Technologies used:
  • Resend
  • Anthropic MCP
  • Cursor

🚀 Quick Start

Demo

Demo Link

Cursor

1. First, you need to authorize Resend to send emails from your domain or email. Follow the steps here to set up and obtain a Resend API key.
2. Clone the project locally. Edit the index.ts file and replace me@yoko.dev with your own email address to send emails from here.
3. Run npm install and npm run build in the project directory. You should see the generated index.js file in the /build directory - this is the MCP server script!

Then go to Cursor Settings -> MCP -> Add a new MCP server:

• Name: [Choose a name]
• Type: Command
• Command: node absolute_path_to_MCP_server/build/index.js --key=your_Resend_API_key --sender=optional_sender_email_address --reply-to=optional_reply_to_email_address_1 --reply-to=optional_reply_to_email_address_2

You can obtain the Resend API key here: Resend API Key

Now you can test sending an email by replacing the to: email address in email.md, selecting all the content, and pressing cmd+l. You can tell it in the Cursor chat "Send this as an email". Make sure the Cursor chat is in proxy mode by selecting the "Proxy" option in the dropdown menu at the bottom left.

Claude Desktop

Set it up as described above, then add the following MCP configuration:

{
  "mcpServers": {
    "resend": {
      "command": "node",
      "args": ["absolute_path_to_MCP_server/build/index.js"],
      "env": {
        "RESEND_API_KEY": [your_API_key],
        "SENDER_EMAIL_ADDRESS": [optional_sender_email_address],
        "REPLY_TO_EMAIL_ADDRESSES": [comma_separated_optional_reply_to_email_addresses]
      }
    }
  }
}

📦 Installation

Installation via Smithery

To automatically install mcp-send-email for Claude Desktop via Smithery:

npx -y @smithery/cli install @ykhli/mcp-send-email --client claude

💻 Usage Examples

Development

npm install
npm run build