$0.002
per call · USD Coin on Base
Domain availability and expiry intelligence via RDAP, the WHOIS successor. Queries the authoritative registry for any RDAP-enabled TLD: free domains return registered:false, taken ones return registrar, creation and expiry dates, nameservers and EPP status codes. TLDs without RDAP coverage return supported:false. Built for agents that buy, monitor or vet domains.
Endpoint
GET https://402utils.com/v1/domain-check104
Calls / 30d
5
Unique payers / 30d
Sep 9
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://402utils.com/v1/domain-check", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://402utils.com/v1/domain-check?domain=example.com" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"createdAt": "1995-08-14T04:00:00Z",
"domain": "example.com",
"expiresAt": "2026-08-13T04:00:00Z",
"nameservers": [
"a.iana-servers.net",
"b.iana-servers.net"
],
"registered": true,
"registrar": "RESERVED-Internet Assigned Numbers Authority",
"status": [
"client delete prohibited",
"client transfer prohibited",
"client update prohibited"
],
"supported": true
}Payment details
0xc55a2d530b53cbad1001e4afd4720b7e71f9c291USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Other and the homepage with a featured placement.
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402utils · RSS TO Json
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Fetch an RSS 2.0 or Atom feed and return clean JSON: feed title, link and description, plus items with title, link, ISO-8601 publishedAt, summary and author. Handles both formats and normalises the dates. The caller-supplied URL is SSRF-checked; the fetch is capped at 2 MB and 8 s.
402utils · Echo
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Echoes back the JSON body you send, with a server timestamp. Useful for verifying your x402 client integration end to end.
402utils · Hash
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Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker.