ASN + IP geolocation · ASN Info

by ASN + IP geolocation

POSTBaseSolanaArbitrumPolygonMonadAvalancheeip155:1329OptimismFraxtaleip155:42220stellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

$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-info

4

Calls / 30d

1

Unique payers / 30d

Aug 31

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
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
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

Pay to0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase, Solana, Arbitrum, Polygon, Monad, Avalanche, eip155:1329, Optimism, Fraxtal, eip155:42220, stellar:pubnet, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=
Schemesexact, upto

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