Email Inbox API + Sending by Sendmux for Gemini CLI

io.github.sendmux/sendmux-mcp

AI email inbox and sending tools with attachments, search, live events, and webhooks.

client:Gemini CLI transport:streamable-http runtime:pypi

Install Email Inbox API + Sending by Sendmux in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "sendmux-mcp": {
      "httpUrl": "https://mcp.sendmux.ai/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs