{"uid":"cap_X10lxQDJCy52MmUVWB_uL","slug":"whois-rdap-domain-lookup-bb7dba90","name":"WHOIS RDAP Domain Lookup","description":"WHOIS / RDAP domain lookup: give a domain, get registrar, registration (creation), expiry and last-updated dates, status codes and nameservers from the registry's RDAP service, plus DNS records and SPF/DMARC/DKIM email-auth posture. Use to check a domain's age, owner registrar or expiry before trusting a counterparty. No personal data. Signed receipt.","url":"https://api.stablecoingateways.com/v1/whois?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","pattern":"^[A-Za-z0-9.-]{3,253}$","description":"Registrable domain or full hostname"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["data","receipt"],"properties":{"data":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"dns":{"type":"object","properties":{"a":{"type":"array","items":{"type":"string"}},"mx":{"type":"array","items":{"type":"object"}},"ns":{"type":"array","items":{"type":"string"}},"caa":{"type":"array","items":{}},"aaaa":{"type":"array","items":{"type":"string"}},"txt_count":{"type":"integer"},"dnssec_validated_answer":{"type":"boolean"}}},"rdap":{"type":"object","properties":{"note":{"type":"string"},"source":{"type":"string"},"status":{"type":"array","items":{"type":"string"}},"expires":{"type":"string"},"available":{"type":"boolean"},"registrar":{"type":"string"},"registered":{"type":"string"},"nameservers":{"type":"array","items":{"type":"string"}},"last_changed":{"type":"string"},"dnssec_signed":{"type":"boolean"},"registered_domain":{"type":"string"},"registrar_iana_id":{"type":"string"}}},"https":{"type":"object","properties":{"hsts":{},"probed":{"type":"boolean"},"status":{"type":"integer"},"reachable":{"type":"boolean"},"redirect_host":{}}},"notes":{"type":"string"},"domain":{"type":"string"},"exists":{"type":"boolean"},"sources":{"type":"array","items":{"type":"string"}},"mail_auth":{"type":"object","properties":{"spf":{"type":"object"},"dmarc":{"type":"object"},"mta_sts":{"type":"boolean"},"tls_rpt":{"type":"boolean"},"dkim_selectors_found":{"type":"array","items":{"type":"object"}},"dkim_selectors_checked":{"type":"array","items":{"type":"string"}}}},"checked_at":{"type":"string"},"provenance":{"type":"object","description":"Additive evidence block (sg-provenance/1): per-fact source, retrieval time, limits; no score or verdict. Full schema in OpenAPI."}},"description":"Registry RDAP registrar, creation/expiry/update dates, status and nameservers, plus DNS and email-auth facts"},"receipt":{"type":"object","required":["v","endpoint_id","ts","price","tx_hash","request_hash","response_hash","log_seq","sig"],"properties":{"evidence":{"type":"object","description":"Signed evidence (see llms.txt)"}},"description":"Ed25519-signed receipt; verify free at POST /v1/verify-receipt. New receipts also carry a signed `evidence` object."}}}}}}},"responseSchema":{"type":"json","example":{"data":{"dns":{"a":["104.20.23.154"],"mx":[{}],"ns":["hera.ns.cloudflare.com"],"caa":[],"aaaa":["2606:4700:10::ac42:93f3"]},"rdap":{"source":"https://rdap.verisign.com/com/v1/","available":true,"registrar":"RESERVED-Internet Assigned Numbers Authority","registered_domain":"example.com","registrar_iana_id":"376"},"https":{"hsts":null,"probed":true,"status":200,"reachable":true,"redirect_host":null},"notes":"TLS certificate details are not inspected from Workers; https.reachable reflects a succ...","domain":"example.com","exists":true,"sources":["DNS via Cloudflare DoH (cloudflare-dns.com)"],"mail_auth":{"spf":{"present":true,"includes":[],"all_qualifier":"-all","dns_lookup_terms":0,"multiple_records":false},"dmarc":{"pct":100,"adkim":"s","policy":"reject","present":true,"subdomain_policy":"reject"},"mta_sts":false,"dkim_selectors_found":[{}],"dkim_selectors_checked":["default"]},"checked_at":"2026-10-22T09:01:19.207Z"},"receipt":{"v":1,"ts":"2026-10-22T09:00:00Z","sig":"hex","price":{"asset":"USDC","amount":"3000","network":"eip155:84532"},"log_seq":1,"tx_hash":"0x..","endpoint_id":"whois-v1","request_hash":"hex","response_hash":"hex"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_zHeY6_ntYNFWaApYU_jkL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up a domain's registrar, registration/expiry dates, status codes, nameservers, DNS records, and email-auth posture (SPF/DMARC/DKIM) via RDAP and DNS.","exampleAgentPrompt":"Can you look up the WHOIS and DNS details for stripe.com — I want to know the registrar, when it was registered, when it expires, and whether it has a proper DMARC policy set up?","exampleUseCases":[{"title":"Counterparty domain trust check","prompt":"Before I wire money to this vendor, can you check if their domain invoicepay-solutions.com is newly registered or has any red flags — like missing DMARC or suspicious registrar?"},{"title":"Email security audit for a business","prompt":"Can you check the email authentication setup for acmecorp.io — does it have SPF, DMARC, and DKIM configured correctly?"},{"title":"Domain expiry monitoring","prompt":"Can you look up when mybrandname.com is set to expire and who the registrar is, so I know if I need to renew it soon?"}],"resultDescription":"A JSON object containing: RDAP data (registrar name and IANA ID, registered/expiry/last-changed dates, status codes, nameservers, DNSSEC signing, availability flag), DNS records (A, AAAA, MX, NS, CAA, TXT count, DNSSEC validation), HTTPS reachability (status code, HSTS, redirect host), email-auth posture (SPF includes and qualifier, DMARC policy and subdomain policy, MTA-STS, DKIM selectors found), plus a signed payment receipt with timestamp, tx hash, and response hash.","failureModes":["Domain not found or unregistered — RDAP returns available:true with limited data","Registry RDAP service unavailable — partial data returned with a note field explaining the gap","Invalid domain format — request rejected if domain fails the regex pattern","TLD not supported by any RDAP bootstrap — fallback or empty RDAP object returned","DNS resolution failure — DNS sub-object may be empty or missing certain record types","DKIM selector not configured — dkim_selectors_found returns empty array"],"whenToPreferThis":"Choose this endpoint when you need to quickly verify a domain's trustworthiness before a payment or business interaction, audit email-auth configuration, or check registration age and expiry — all in a single call that combines RDAP, DNS, and email-security data with a verifiable signed receipt. Prefer it over generic WHOIS tools when you need machine-readable structured output with SPF/DMARC/DKIM included.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T15:38:14.782Z","isFirstParty":false,"canonicalSlug":"whois-rdap-domain-lookup-bb7dba90"}