{"uid":"cap_WA4y3WZCXmWBOzkuJoijx","slug":"domain-intel-whois-dns-tls-subdomain-lookup-via-x402-cde5ccbb","name":"Domain Intel — WHOIS, DNS, TLS & Subdomain Lookup via x402","description":"Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.","url":"https://dns.halowerk.com/domain/articles/mx-united-domains?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","maxLength":253},"baseline":{"type":"object","required":["domain","observed_at","records"],"properties":{"domain":{"type":"string","maxLength":253},"records":{"type":"array","items":{"type":"object","required":["exchange","priority"],"properties":{"exchange":{"type":"string","maxLength":254},"priority":{"type":"integer","maximum":65535,"minimum":0}},"additionalProperties":false},"maxItems":50},"observed_at":{"type":"string","maxLength":40}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.009","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":"$0.009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_sgl0ofcGQX4FmEeqSwan3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Given a domain name, returns WHOIS registration data, full DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomain enumeration — paid per call in USDC over x402 with no signup required.","exampleAgentPrompt":"Can you pull up the full domain intelligence report for stripe.com — WHOIS, DNS records, mail policy, TLS certificate, and any subdomains you can find?","exampleUseCases":[{"title":"Security audit of a vendor domain","prompt":"I need to audit the domain security posture of acmecorp.io — can you check their WHOIS registration, DNS setup, SPF/DKIM/DMARC mail policy, TLS cert, and enumerate any subdomains?"},{"title":"Detecting MX record drift","prompt":"Our baseline MX records for payments.example.com had exchange mail.example.com at priority 10 as of 2024-12-01. Can you check if those MX records have changed since then?"},{"title":"Domain ownership due diligence","prompt":"Before we acquire the domain techstartup.io, can you look up who currently owns it, when it expires, and what DNS infrastructure it's running on?"}],"resultDescription":"Returns a structured report containing: WHOIS registration data (registrar, registrant, expiry dates), all DNS record types (A, AAAA, MX, NS, TXT, CAA, SOA), email authentication policies (SPF, DKIM, DMARC), TLS certificate metadata (issuer, validity, SANs), and discovered subdomains. If a baseline is provided, drift from observed MX records is flagged.","failureModes":["Domain not found or invalid — malformed domain string exceeding 253 characters or non-existent TLD returns an error","WHOIS throttling — some registries rate-limit WHOIS queries, resulting in partial or missing registration data","TLS lookup failure — if the domain has no HTTPS service, certificate data will be absent","Subdomain enumeration may be incomplete — passive enumeration only, does not guarantee full coverage","Payment failure — x402 USDC payment not accepted results in 402 response with no data returned","Baseline mismatch validation only covers MX records, not full DNS diff"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-faceted domain intelligence report in a single call — covering WHOIS, DNS, mail policy, TLS, and subdomains simultaneously — without any registration, API key, or subscription. Ideal for agents that need one-off or low-frequency domain investigations and can pay per call in USDC via x402. Prefer this over raw DNS resolvers when you need ownership data (WHOIS) and security posture (mail policy, TLS) alongside DNS records in one response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:44:11.749Z","isFirstParty":false,"canonicalSlug":"domain-intel-whois-dns-tls-subdomain-lookup-via-x402-323ca60a"}