x402 Domain Lookup & DNS Email Auth

Connect Remote server

claude mcp add --transport http dns-auth-checker https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp

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

{
  "servers": {
    "dns-auth-checker": {
      "type": "http",
      "url": "https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp

Tools 4 found in our last check

• domain_auth_check

  Audit a domain's email authentication DNS: SPF (record count, all qualifier, includes, ~DNS lookups vs 10 limit), DMARC (p, sp, pct, rua/ruf, adkim/aspf), DKIM (common or given selectors, key type and length), MX, plus BIMI / MTA-STS / TLS-RPT presence. Returns per-check status,…

• domain_lookup

  Domain lookup: DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA via Cloudflare DNS-over-HTTPS, DNSSEC AD flag) plus registration data from the registry's RDAP server (IANA bootstrap): registrar + IANA id, created / updated / expiry dates, age in days, days to expiry, EPP statu…

• domain_lookup_bulk

  Bulk domain lookup: the same DNS + RDAP registration report as domain_lookup for up to 10 domains in one call (deduplicated). Per-domain errors are returned inline. Charged once ($0.01 USDC via x402) only if at least one domain succeeded; otherwise not charged.

• health

  Free health check. Returns service status, price and network.

Details

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