ASN + IP geolocation · ASN Info
$0.003
per call · USD Coin on Base
Look up the Autonomous System (ASN), prefix, country, registry, and allocation date for an IPv4 address - or for a hostname (which is resolved first). Uses Team Cymru's free DNS-based IP→ASN mapping; no HTTPS upstream, no auth, no rate-limit headaches.
Endpoint
POST https://agent402.tools/api/asn-info4
Calls / 30d
1
Unique payers / 30d
Aug 31
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://agent402.tools/api/asn-info", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"ip": "8.8.8.8"
}),
});
const data = await res.json();curl -X POST \
"https://agent402.tools/api/asn-info" \
-H "Content-Type: application/json" \
-d '{"ip":"8.8.8.8"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"allocationDate": "1992-12-01",
"asn": "AS15169",
"country": "US",
"ip": "8.8.8.8",
"owner": "GOOGLE",
"prefix": "8.8.8.0/24",
"queriedAt": "2026-06-19T22:00:00.000Z",
"registry": "arin"
}Payment details
0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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