MailValid Email Verification for Gemini CLI

io.mailvalid/email-verifier

Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.

client:Gemini CLI transport:streamable-http tools:6

Install MailValid Email Verification in Gemini CLI

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

{
  "mcpServers": {
    "email-verifier": {
      "httpUrl": "https://mailvalid.io/mcp/"
    }
  }
}

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