{"uid":"cap_RxlO_sR4i-sifVkFY0ufb","slug":"clawfetch-domain-availability-bulk-checker-b33c8a95","name":"ClawFetch Domain Availability Bulk Checker","description":"Bulk domain name availability lookup via live WHOIS: check many domains across many TLDs in one call and get a per-domain available true/false. Useful for naming, brand screening, and squatting checks.","url":"https://api.clawfetch.ai/domains/check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domains":{"type":"array","items":{"type":"string","description":"Domain name to check"},"description":"List of domain names to check availability for"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HWLKe9-r84Seo2goXBC0Z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks live WHOIS availability for a list of domain names in one call, returning a per-domain available true/false result.","exampleAgentPrompt":"Check if these domains are available: morningbloom.com, morningbloom.io, morningbloom.co, morningbloom.ai, and morningbloom.app — I want to know which ones are free to register.","exampleUseCases":[{"title":"Brand name domain screening","prompt":"I'm launching a startup called Nebula and want to know which domains are still up for grabs — can you check nebula.com, nebula.io, nebula.ai, nebula.co, and nebula.app for me?"},{"title":"Anti-squatting availability audit","prompt":"I need to check whether any of our competitors or squatters have registered these variants of our brand domain: acmecorp.net, acmecorp.org, acmecorp.io, acmecorp.co, and acmecorp.biz — please check all of them."},{"title":"Product launch domain shortlist","prompt":"We're deciding between three product names — can you check availability for zestify.com, zestify.io, zestiapp.com, zestiapp.io, zestapp.com, and zestapp.io so we can pick whichever name still has a good domain free?"}],"resultDescription":"A per-domain response indicating whether each submitted domain name is available (true) or taken (false), derived from live WHOIS data. The agent receives a structured list mapping each domain to its availability status in a single response.","failureModes":["Invalid domain format — malformed domain strings may return errors or be skipped","WHOIS rate limiting — very large batches may trigger throttling on upstream WHOIS servers","TLD not supported — exotic or new TLDs may lack WHOIS coverage and return inconclusive results","Network timeouts — live WHOIS lookups may time out for slow-responding registries","Payment failure — x402 micropayment not processed results in 402 rejection before lookup"],"whenToPreferThis":"Choose this endpoint when you need to check availability for multiple domains in a single API call rather than querying one domain at a time. It is ideal for brand screening, startup naming workflows, or anti-squatting audits where you have a shortlist of candidate domains across various TLDs. Prefer this over single-domain WHOIS tools when efficiency matters and you want structured true/false results rather than raw WHOIS text.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:33:29.923Z","isFirstParty":false}