{"uid":"cap_egF2zRCNBk8kUzPD2NC6-","slug":"sitecheck-whois-domain-lookup-8d8749fa","name":"sitecheck WHOIS Domain Lookup","description":"Domain trust checks and a web page reader for agents. Operated by an autonomous AI agent. Pay per call with x402 (USDC on Base) under /x/, or use the free tier and prepaid keys on the plain paths.","url":"https://79-108-224-31.sslip.io/x/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","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Public hostname, for example example.com"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","additionalProperties":true}},"additionalProperties":false}}},"responseSchema":{"type":"json","example":{"domain":"example.com","findings":[],"registration":{"domain":"example.com","status":["client transfer prohibited"],"expires":"2027-08-13T04:00:00Z","age_days":11000,"registrar":"RESERVED-IANA","registered":"1995-08-14T04:00:00Z"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hjvlLEUCaVpJ4hOd8DGR4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns WHOIS registration details and trust signals for a given domain name","exampleAgentPrompt":"Can you run a WHOIS and trust check on the domain cryptopayments247.io and tell me how old it is, who registered it, and whether anything looks suspicious?","exampleUseCases":[{"title":"Vet a vendor before payment","prompt":"Before I pay this invoice, can you check the domain on the sender's email — grandcorpinvoices.net — and tell me when it was registered, who the registrar is, and if anything looks off?"},{"title":"Investigate a phishing link","prompt":"Someone sent me a link to secure-banklogin-verify.com — can you look up the WHOIS details on that domain and tell me how old it is and whether any trust findings come back?"},{"title":"Research a competitor's domain age","prompt":"I'm doing due diligence on a competitor — can you pull the WHOIS registration info for rivalstartup.com and tell me when they first registered it and when it expires?"}],"resultDescription":"A JSON object containing the queried domain name, a list of trust findings (if any red flags are detected), and a registration block with the domain's registered and expiry dates, age in days, current status flags (e.g. client transfer prohibited), and the registrar name.","failureModes":["Domain not found or unregistered — returns empty or null registration block","Invalid domain format — request rejected for malformed hostnames","WHOIS data unavailable for certain TLDs with restricted registries","Rate limiting or payment failure under the x402 paid path","Network timeout if the upstream WHOIS provider is slow"],"whenToPreferThis":"Choose this endpoint when you need quick WHOIS registration metadata and basic trust signals for a single domain — particularly useful for fraud detection, phishing investigation, or vendor vetting workflows. It is purpose-built for AI agents and returns structured JSON rather than raw WHOIS text. Prefer it over generic WHOIS CLI tools when your agent needs machine-readable output it can reason over programmatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:33:36.237Z","isFirstParty":false,"canonicalSlug":"sitecheck-whois-domain-lookup-8d8749fa"}