the402 endpoint detail

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2s.io domain whois

https://2s.io/api/domain/whois

payable

Modern WHOIS via RDAP. Query: domain (e.g. example.com). Returns { domain, ldhName, handle, registrar:{ name, ianaId, url, abuseEmail, abusePhone }, registeredAt, expiresAt, updatedAt, statuses (camelCase ICANN EPP codes), nameservers[], dnssecSigned, rdapUrl }. GDPR: registrant personal data is generally redacted upstream and not returned. Some TLDs without RDAP are not supported and return 404 T

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.0025
Network
base
Pay to
0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
73 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:14:03.190Z (1d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F2s.io%2Fapi%2Fdomain%2Fwhois"