{"uid":"cap_egV05WpbrpitD-y82FqG1","slug":"domain-intel-pay-per-call-domain-intelligence-x402-5746f7b6","name":"Domain Intel — Pay-Per-Call Domain Intelligence (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/ns-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":"string","maxLength":254},"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_JFPN_ieJfKqRD9fAIIdrY","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":"Returns WHOIS, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate, and subdomain data for a given domain, billed per call in USDC via x402.","exampleAgentPrompt":"Pull a full domain intelligence report for github.com — I want WHOIS, all DNS records, mail policy, TLS certificate info, and any subdomains you can find.","exampleUseCases":[{"title":"Email security audit for a vendor","prompt":"Check the mail security posture of acme-vendor.com — I need their SPF, DKIM, and DMARC records to know if I can trust email coming from them."},{"title":"Domain ownership investigation","prompt":"I need to find out who registered phishing-lookalike.com — pull the WHOIS data and DNS records so I can see when it was registered and where it's pointing."},{"title":"Monitor DNS drift from baseline","prompt":"Here's the DNS snapshot I took of mycompany.io last week — can you re-query it now and compare so I can see if any records have changed?"}],"resultDescription":"A structured report containing WHOIS registration details (registrar, dates, registrant), full DNS record set (A, AAAA, MX, NS, TXT, CNAME, etc.), email authentication policy records (SPF, DKIM, DMARC), active TLS certificate metadata (issuer, validity, SANs), and a list of discovered subdomains. When a baseline is provided, the response can be used to detect drift from a prior observed state.","failureModes":["Domain not found or unregistered — returns empty or partial result","Invalid domain format — returns validation error","WHOIS privacy protection — registrant details may be redacted","Rate limiting or upstream resolver failures — transient error","x402 payment failure — call blocked if USDC payment is rejected","TLS certificate absent — returns null cert data for HTTP-only domains"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, all-in-one domain intelligence profile without managing API keys or subscriptions. It is ideal for one-off investigations, security audits, phishing detection, or DNS monitoring workflows where pay-per-call economics are preferable to a monthly plan. Prefer it over dedicated WHOIS-only or DNS-only APIs when you need multiple data types (WHOIS + DNS + TLS + mail policy + subdomains) in a single call. The optional baseline parameter makes it especially useful for change-detection scenarios.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:31.766Z","isFirstParty":false,"canonicalSlug":"domain-intel-pay-per-call-domain-intelligence-x402-5746f7b6"}