Domain and Email Security Check

Check a domain in one call: registration via RDAP (registered or likely available, registrar, created and expiry dates, status, nameservers; DNS fallback for TLDs without RDAP), DNS (A, NS, MX, CAA, DNSSEC) and email security (SPF, DMARC policy, DKIM on common selectors) with a 0 to 100 score, grade and findings. Params: domain (required).

Call it

import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agentsvc.io/api/v1/proxy/domain-check", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({"domain":"github.com"}),
});
const { data, payment } = await res.json();  // payment.transaction = on-chain receipt

Input

Output

Example response (data)

{
  "domain": "github.com",
  "registration": {
    "registered": true,
    "likely_available": false,
    "method": "rdap",
    "registrar": "MarkMonitor Inc.",
    "created": "2007-10-09",
    "expires": "2028-10-09",
    "updated": "2026-09-07",
    "status": [
      "client delete prohibited",
      "client transfer prohibited"
    ],
    "nameservers": [
      "dns1.p08.nsone.net",
      "dns2.p08.nsone.net"
    ]
  },
  "dns": {
    "a": [
      "140.82.121.3"
    ],
    "nameservers": [
      "dns1.p08.nsone.net",
      "dns2.p08.nsone.net"
    ],
    "mx": [
      {
        "priority": 0,
        "exchange": "github-com.mail.protection.outlook.com"
      }
    ],
    "caa": [
      {
        "critical": 0,
        "issue": "digicert.com"
      },
      {
        "critical": 0,
        "issue": "globalsign.com"
      }
    ],
    "dnssec": false
  },
  "email_security": {
    "spf": "v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblocks.google.com include:_netblocks2.google.com include:mail.zendesk.com include:_…",
    "dmarc": "v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=mailto:dmarc@github.com; fo=1",
    "dmarc_policy": "quarantine",
    "dkim_selectors_found": [
      "google",
      "selector1"
    ],
    "score": 95,
    "grade": "A",
    "findings": [
      "DNSSEC not enabled"
    ]
  },
  "checked_at": "2026-10-06T14:30:56.904Z"
}