{"uid":"cap_XnhDUQe3Wr1vMyYfa1POX","slug":"startup-domain-check-86e96f0f","name":"Startup Domain Check","description":"Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.","url":"https://anibalb.duckdns.org/x402/startup-domain-check?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"myapp.com","registrar":"Namecheap","expiration":"2027-10-01","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_KAxrEn2Ayx8y6gv1E2dly","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":"Checks whether a domain name is registered, retrieves its registrar, and returns its expiration date — useful for validating startup or product domain availability and ownership.","exampleAgentPrompt":"Can you check if myapp.com is registered, who the registrar is, and when it expires?","exampleUseCases":[{"title":"Startup name domain availability check","prompt":"I'm thinking of naming my startup 'Lumen' — can you check if lumen.io is already registered and who owns it?"},{"title":"Domain expiry monitoring for portfolio","prompt":"Check when techventures.com expires and which registrar holds it — I want to know if it's coming up for renewal soon."},{"title":"Competitive research on rival domain","prompt":"Can you look up whether rivalstartup.com is registered and tell me the registrar and expiration date?"}],"resultDescription":"Returns a JSON object with the domain name, whether it is registered (boolean), the registrar company name, and the expiration date in ISO format (e.g. 2027-10-01).","failureModes":["Domain not found or invalid TLD — may return registered: false or an error","Network timeout if WHOIS upstream is slow","Unsupported TLD where WHOIS data is unavailable","Payment failure via x402 if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-account-required lookup of domain registration status, registrar identity, and expiration date — especially in startup or product-naming workflows where you want to verify availability or ownership without signing up for a WHOIS service. Ideal for AI agents that pay per call in USDC via x402 and need lightweight domain intelligence.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:03.965Z","isFirstParty":false,"canonicalSlug":"startup-domain-check-86e96f0f"}