$0.005
per call · USD Coin on Base
WHOIS API and RDAP domain lookup for agents. Returns registration date, domain age, expiration date, registrar, contacts, nameservers, DNSSEC status, EPP status codes, transfer history, and risk flags from the IANA-mandated RDAP endpoint for the domain's TLD. Optionally appends a certificate-transparency summary. Use it for domain diligence, phishing triage, brand protection, registrar checks, or expiry monitoring.
Endpoint
POST https://x402.agentutility.ai/whois-lookup1
Calls / 30d
1
Unique payers / 30d
Aug 12
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://x402.agentutility.ai/whois-lookup", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"domain": "example.com"
}),
});
const data = await res.json();curl -X POST \
"https://x402.agentutility.ai/whois-lookup" \
-H "Content-Type: application/json" \
-d '{"domain":"example.com"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"age_days": 11223,
"cert_summary": null,
"contacts": {},
"days_until_expiry": 98,
"dnssec_signed": true,
"domain": "example.com",
"expiration_date": "2026-08-13T04:00:00Z",
"flags": [],
"found": true,
"last_changed": "2026-01-16T18:26:50Z",
"nameservers": [
"A.IANA-SERVERS.NET",
"B.IANA-SERVERS.NET"
],
"rdap_server": "https://rdap.verisign.com/com/v1/",
"registered_date": "1995-08-14T04:00:00Z",
"registrar": {
"iana_id": "376",
"name": "RESERVED-Internet Assigned Numbers Authority"
},
"statuses": [
"client delete prohibited",
"client transfer prohibited"
],
"transfer_date": null
}Payment details
0x6c0752c09e7f6fa6526fcdf40e456a159ebb5621USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of AI & Inference and the homepage with a featured placement.
More from AgentUtility.ai & similar services
AgentUtility.ai · Stocks News
x402.agentutility.ai
Fetches recent stock market news on equities, earnings, IPOs, the Fed, and macro from GDELT with a GNews fallback when configured, returning headline metadata with sentiment and source domains. The equities companion to crypto-news. Data-only news digests; no price prediction, trading advice, or order routing. Use it as a stocks news API, equities news feed, earnings news source, or Wall Street headlines for agents.
AgentUtility.ai · Search Site
x402.agentutility.ai
Site/domain-scoped search via Decodo Google results. If primary search is quota-limited, a best-effort fallback maps site: to GDELT domain: and returns marked degraded recent public-news results (https://www.gdeltproject.org/); fallback recency is capped at 168 hours and only news-indexed pages can appear. Use it as a domain-search API for agents.
AgentUtility.ai · Recent Tweet Search
x402.agentutility.ai
Repeat a saved recent-tweet search to monitor a brand, topic, or phrase over time. Send the same query, language, and max_results on each check; it returns recent public post text, timestamps, metrics, and expanded author profiles. If native X search cannot answer, the tweets array contains clearly labeled public-index results with degraded: true instead of an empty paid response. Read-only: no posting, replying, liking, following, or direct-message access. Use it as a recent tweet search API, Twitter monitoring API, saved-query watchlist, or X public-post search.