{"uid":"cap_sN69mfS60_bWJE1_n5fno","slug":"fetchx402-whois-rdap-domain-lookup-a8ad69d1","name":"fetchx402 WHOIS / RDAP Domain Lookup","description":"Look up domain registration facts via RDAP (registrar, status, dates, nameservers, DNSSEC). Use when you need live registry data and must not guess. Unregistered names return not_found.","url":"https://api.fetchx402.com/v1/tools/whois","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","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Public fully-qualified domain name to look up, such as example.com. IPs, localhost, and internal/mDNS names are rejected."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"dnssec":true,"domain":"example.com","handle":"2336799_DOMAIN_COM-VRSN","source":"rdap","status":["client delete prohibited","client transfer prohibited","client update prohibited"],"registrar":{"name":"RESERVED-Internet Assigned Numbers Authority","iana_id":"376"},"created_at":"1995-08-14T04:00:00Z","expires_at":"2025-08-13T04:00:00Z","updated_at":"2024-08-14T07:01:39Z","nameservers":["a.iana-servers.net","b.iana-servers.net"],"rdap_server":"https://rdap.verisign.com/com/v1/"}},"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_Xuf1FN4nGZsZULYvzGsCe","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 live RDAP-based domain registration facts (registrar, status, dates, nameservers, DNSSEC) for a given fully-qualified domain name.","exampleAgentPrompt":"Can you look up the live RDAP registration details for stripe.com — I need the registrar, registration and expiry dates, nameservers, and whether DNSSEC is enabled?","exampleUseCases":[{"title":"Domain expiry monitoring for portfolio","prompt":"Check the live registry data for mybrand.io and tell me when it expires and who the registrar is — I want to make sure it doesn't lapse."},{"title":"Verifying a domain before outreach","prompt":"Before I email the owner of acmecorp.net, can you confirm it's actually registered and tell me its current status and registrar from RDAP?"},{"title":"Security audit for DNSSEC coverage","prompt":"Look up the domain registration facts for payments.example.com from the live registry — specifically whether DNSSEC is active and what nameservers it's delegated to."}],"resultDescription":"A structured RDAP record containing: registrar name, domain status flags (e.g. clientTransferProhibited), creation/updated/expiration dates, nameserver hostnames, DNSSEC delegation status, and registry identifiers. If the domain is not registered, returns a not_found result rather than guessing.","failureModes":["Domain not registered — returns not_found rather than an error","Invalid or non-public domain (IP address, localhost, mDNS name) — rejected with an error","RDAP registry unavailable for the TLD — may return a timeout or incomplete data","Malformed domain string (missing TLD, special characters) — rejected at input validation","Payment failure (x402 protocol) — call not executed, no data returned"],"whenToPreferThis":"Choose this endpoint when you need authoritative, live domain registration facts from the official RDAP registry — not cached WHOIS snapshots. It is the right choice when you must confirm registration status, expiry, registrar identity, nameserver delegation, or DNSSEC without guessing. Prefer it over DNS-only lookups when the question is about ownership and registration lifecycle rather than DNS resolution. For a single-call bundle of DNS + TLS + RDAP facts, consider the sibling all-in-one endpoint instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:42:22.561Z","isFirstParty":false}