{"uid":"cap_CO9lkyBTB94JhI2qc0GvZ","slug":"arch-tools-domain-check-83345a8e","name":"Arch Tools Domain Check","description":"Check if a domain is available or registered via RDAP (no key needed). Pay per call with USDC (x402) or credits - archtools.dev","url":"https://archtools.dev/v1/tools/domain-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","description":"Domain name (e.g. example.com)"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9UWynJCldAZz3pUpRDWYq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the availability and registration status of a domain name","exampleAgentPrompt":"Can you check if coolstartup.io is available to register?","exampleUseCases":[{"title":"Pre-launch domain availability check","prompt":"I'm about to launch my new SaaS product — can you check if launchpadly.com is available to register?"},{"title":"Brand name domain research","prompt":"We're brainstorming brand names and want to know if 'novacore.dev' is already taken."},{"title":"Competitor domain monitoring","prompt":"Can you look up whether rivalapp.com is currently registered, and find out any details about it?"}],"resultDescription":"A JSON object indicating whether the given domain is available or already registered, along with relevant domain metadata such as registration status and potentially registrant or expiry details.","failureModes":["Invalid or malformed domain string returns an error response","Domain TLD not supported may return an error or empty result","Network timeout or upstream DNS/WHOIS service unavailability","Rate limiting if too many requests are made in quick succession"],"whenToPreferThis":"Use this endpoint when you need a quick, pay-per-call domain availability or registration status check without setting up a full domain registrar API integration. Particularly useful for agents doing ad-hoc domain research, brand name validation, or pre-purchase checks on individual domains.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:32:59.046Z","isFirstParty":false}