Checkmails — Email Verification for Gemini CLI

eu.checkmails/checkmails

Verify email deliverability by SMTP. Catch-all/disposable/role detection. EU-hosted, GDPR-ready.

client:Gemini CLI transport:streamable-http

Install Checkmails — Email Verification in Gemini CLI

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

{
  "mcpServers": {
    "checkmails": {
      "httpUrl": "https://checkmails.eu/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