{"uid":"cap_T1eD4oHn2_MaXo2P7ckgH","slug":"foundry-domain-availability-check-1fd049d6","name":"Foundry Domain Availability Check","description":"Domain availability check via RDAP: is a domain registered or free. Input: a domain.","url":"https://minty-sprout.onrender.com/v1/domain-availability?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"string","maxLength":8000,"description":"A domain"}}},"responseSchema":{"type":"json","example":{"note":"No registration record found; confirm with a registrar before buying.","domain":"example-unregistered-name-123.com","source":"RDAP","available":true,"registered":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5Ht8SyLdCYXdjrecgnMad","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","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 or available using RDAP protocol","exampleAgentPrompt":"Can you check if coolstartupname.io is available to register, or is it already taken?","exampleUseCases":[{"title":"Startup domain name research","prompt":"I'm starting a company called NovaSpark — can you check if novaspark.com is available to register?"},{"title":"Pre-purchase domain validation","prompt":"Before I reach out to a domain broker, can you tell me whether quantumleap.ai is currently registered or still free?"},{"title":"Bulk idea screening for new brand","prompt":"I have a few domain ideas for my new app — can you check if pitchperfect.io is available?"}],"resultDescription":"Returns a JSON object indicating whether the domain is available (true/false), whether it is registered (true/false), the domain queried, the data source (RDAP), and an optional note — for example, 'No registration record found; confirm with a registrar before buying.' when the domain appears unregistered.","failureModes":["Domain format invalid — malformed input may return an error or unexpected result","RDAP registry unavailable for certain TLDs — some obscure TLDs may not have RDAP support, leading to inconclusive results","Network timeout — the RDAP query may time out for slow registries","False negatives — a domain may appear available via RDAP but actually be reserved or pending deletion at the registrar level"],"whenToPreferThis":"Use this endpoint when you need a quick, programmatic check of whether a specific domain is registered or free, without needing full WHOIS data. It's ideal for pre-purchase screening, startup name validation, or agent workflows that need to filter domain candidates. Prefer it over full WHOIS lookups when you only need availability status and want a clean boolean result. For deeper DNS record inspection, use the sibling DNS lookup endpoint instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T06:50:57.849Z","isFirstParty":false,"canonicalSlug":"foundry-domain-availability-check-1fd049d6"}