MailStream for Zed

app.mailstream/mailstream

The first MCP server for physical mail: send postcards and letters, manage lists and campaigns.

client:Zed transport:streamable-http

Install MailStream in Zed

~/.config/zed/settings.json · windows: %APPDATA%\Zed\settings.json

{
  "context_servers": {
    "mailstream": {
      "url": "https://my.mailstream.app/mcp"
    }
  }
}

Merge this into your existing settings object — do not replace the file. Zed docs