MailInApp for Gemini CLI

com.mailinapp/mcp

Build and send interactive email campaigns: studio editing, contacts, sending, results.

client:Gemini CLI transport:streamable-http

Install MailInApp in Gemini CLI

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

{
  "mcpServers": {
    "mcp": {
      "httpUrl": "https://mailinapp.com/api/mcp"
    }
  }
}

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