x402 DNS Email Auth Checker for Gemini CLI

dev.workers.microtools-x402.x402-dns-auth-checker/dns-auth-checker

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.

client:Gemini CLI transport:streamable-http tools:2

Install x402 DNS Email Auth Checker in Gemini CLI

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

{
  "mcpServers": {
    "dns-auth-checker": {
      "httpUrl": "https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp"
    }
  }
}

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