{"uid":"cap_AHFIspSfZ1mRBOVGyT7Zh","slug":"northline-webkit-whois-rdap-domain-lookup-61490f76","name":"Northline WebKit – WHOIS/RDAP Domain Lookup","description":"Pay-per-call web and domain utilities for AI agents: URL to Markdown, link preview metadata, links, uptime/redirect check, DNS, email-domain check, WHOIS/RDAP, robots.txt and a one-call domain report. x402 (USDC on Base), no API key, no signup.","url":"https://northline-webkit.northline-c86.workers.dev/v1/domain/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"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","minLength":3,"description":"Domain name, e.g. example.com"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"example.com","ageDays":11400,"created":"1995-08-14T04:00:00Z","registrar":"RESERVED-Internet Assigned Numbers Authority","registered":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rCQ_MvHD1I0tP7XWWZJOa","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns WHOIS/RDAP registration data for a domain, including creation date, registrar, age, and registration status.","exampleAgentPrompt":"Can you look up the WHOIS registration info for stripe.com — I want to know when it was registered, who the registrar is, and how old the domain is?","exampleUseCases":[{"title":"Verify domain legitimacy before outreach","prompt":"Before I send a partnership proposal to the email on their website, can you pull up WHOIS data for acmecorp.io so I can see when it was registered and who the registrar is? I want to make sure it's not a freshly spun-up domain."},{"title":"Research competitor domain age","prompt":"I'm doing competitive research — can you check the WHOIS record for shopify.com and tell me when it was first registered and how many days old it is?"},{"title":"Detect suspicious newly registered domains","prompt":"We got an email from someone claiming to be from payments-secure-banking.com — can you run a WHOIS lookup on that domain and tell me its creation date, registrar, and whether it's even registered?"}],"resultDescription":"Returns a JSON object with the domain name, number of days since registration (ageDays), ISO 8601 creation date (created), registrar name, and a boolean indicating whether the domain is registered.","failureModes":["Domain not found or unregistered: may return registered=false with minimal data","Invalid domain format: schema requires minLength of 3 characters","RDAP/WHOIS registry unreachable: upstream timeout or error","Rate limiting or payment failure via x402 protocol"],"whenToPreferThis":"Choose this endpoint when you need quick, structured WHOIS/RDAP data (registrar, creation date, domain age) without an API key or signup, and are comfortable paying $0.002 USDC per call via x402 on Base. Ideal for AI agents doing automated domain vetting, fraud detection, or competitive research at low cost per query.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:39:35.587Z","isFirstParty":false,"canonicalSlug":"northline-webkit-whois-rdap-domain-lookup-61490f76"}