Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun

In SourceWeft

1. Open Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun in the dashboard and add it to a workspace.
2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

{
  "mcpServers": {
    "send-email": {
      "type": "http",
      "url": "https://mcp.apify.com?tools=cybermax/send-email"
    }
  }
}