{"uid":"cap_Uy-gjhAW-LppikuZ4b5bs","slug":"domain-intel-mx-record-intelligence-netcup-article-b7c041e9","name":"Domain Intel — MX Record Intelligence (Netcup Article)","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-netcup?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_lx8VKtVDBofiup1CqXuUa","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":"Retrieves WHOIS, DNS, mail policy (MX), TLS certificate, and subdomain intelligence for a given domain, paying per call in USDC via x402","exampleAgentPrompt":"Pull up the full domain intelligence report for halowerk.com — I want WHOIS, DNS, MX records, TLS certificate details, and any subdomains you can find, and compare the MX records against this baseline: exchange=mail.netcup.de priority=10, observed two days ago.","exampleUseCases":[{"title":"Email deliverability audit","prompt":"Check the MX and mail policy records for acmecorp.com and tell me if anything looks misconfigured or has changed since yesterday — baseline MX was exchange=mail.acmecorp.com priority=10."},{"title":"Domain infrastructure due diligence","prompt":"I'm evaluating a vendor and need a full intelligence snapshot of their domain vendorco.io — WHOIS ownership, DNS setup, TLS cert validity, and any subdomains you can surface."},{"title":"TLS certificate expiry check","prompt":"Can you look up the TLS certificate details for startup.example.com so I can see when it expires and who issued it?"}],"resultDescription":"Returns a structured intelligence report for the queried domain including WHOIS registration data, DNS record set, MX mail exchange records with priorities, mail policy (e.g. SPF/DMARC), TLS certificate metadata, and discovered subdomains. When a baseline is provided, the response may include change detection against the supplied MX snapshot.","failureModes":["Invalid or malformed domain name returns a validation error","Domain not found or unregistered returns empty or null WHOIS/DNS data","Baseline MX records schema mismatch (missing required fields) causes a 400 bad request","Payment failure via x402 protocol results in a 402 Payment Required response, blocking the lookup","Rate limiting or upstream DNS resolver timeout may return a 503 or partial data response"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-signal domain intelligence report in a single pay-per-call request without API key registration. It is especially useful for one-off domain audits, comparing current MX records against a known baseline, or when you want WHOIS + DNS + TLS + subdomains bundled together rather than querying separate specialized APIs. It suits agents operating in a trustless, no-signup context using USDC micropayments via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:21.680Z","isFirstParty":false,"canonicalSlug":"domain-intel-mx-record-intelligence-netcup-article-b7c041e9"}