{"uid":"cap_ia3ni2ZRfqj_tzTqDviOG","slug":"domain-intel-mx-mail-policy-lookup-halowerk-3549f0c3","name":"Domain Intel — MX/Mail Policy Lookup (Halowerk)","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-hetzner?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_a0q1g97-yKmENayxhERsf","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, DNS records, mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomains, with optional MX baseline comparison — paid per call in USDC via x402.","exampleAgentPrompt":"Pull the full domain intel for example.com — I need the WHOIS, DNS records, MX setup, SPF/DMARC policy, TLS certificate, and any subdomains you can find, and compare the MX records against this baseline: [{\"exchange\":\"mail.example.com\",\"priority\":10}] observed at 2024-01-15T00:00:00Z.","exampleUseCases":[{"title":"Email deliverability audit for a domain","prompt":"Check example.com's full mail policy — I need to see its MX records, SPF, DKIM, and DMARC configuration so I can tell whether emails from it are likely to land in inboxes or get flagged as spam."},{"title":"MX change detection against a saved baseline","prompt":"Look up the current MX records for acme-corp.io and compare them against my saved baseline: exchange mail.acme-corp.io at priority 10, last observed 2024-06-01T12:00:00Z — flag anything that's changed."},{"title":"Domain ownership and infrastructure investigation","prompt":"I need a full intelligence report on suspicious-domain.net — who owns it according to WHOIS, what DNS records it has, what subdomains exist, and whether its TLS certificate looks legitimate."}],"resultDescription":"Returns a structured report for the queried domain including WHOIS registration data, DNS records, MX exchange records, mail policy details (SPF, DKIM, DMARC), TLS certificate metadata, discovered subdomains, and optionally a diff against a provided MX baseline.","failureModes":["Invalid or malformed domain name returns a validation error","Domain not found or unregistered returns empty or null WHOIS data","Baseline schema validation failure if provided baseline records are malformed","USDC payment failure or insufficient funds blocks the call under x402","Rate limiting or network timeouts from upstream DNS/WHOIS resolvers may delay or fail the response","Private WHOIS registrations return redacted registrant data"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-faceted domain intelligence lookup — combining WHOIS, DNS, MX/mail policy, TLS, and subdomains in a single pay-per-call request with no API key or subscription required. Prefer it over separate WHOIS or DNS tools when you want all domain signals in one shot, or when you need MX baseline comparison to detect configuration drift. Best for on-demand, low-frequency lookups billed directly in USDC via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:28.784Z","isFirstParty":false,"canonicalSlug":"domain-intel-mx-mail-policy-lookup-halowerk-3549f0c3"}