{"uid":"cap_70No2E8o_9VmT3M9cT6CU","slug":"agentsvc-io-domain-check-eb0946e0","name":"agentsvc.io Domain Check","description":"86 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.","url":"https://agentsvc.io/api/v1/proxy/domain-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","description":"Domain name, e.g. example.com"}}},"responseSchema":{"type":"json","example":{"data":{"dns":{"a":["140.82.121.3"],"mx":[{"exchange":"github-com.mail.protection.outlook.com","priority":0}],"caa":[{"issue":"digicert.com","critical":0}],"dnssec":false,"nameservers":["dns1.p08.nsone.net"]},"domain":"github.com","checked_at":"2026-10-06T14:30:56.904Z","registration":{"method":"rdap","status":["client delete prohibited"],"created":"2007-10-09","expires":"2028-10-09","updated":"2026-09-07","registrar":"MarkMonitor Inc.","registered":true,"nameservers":["dns1.p08.nsone.net"],"likely_available":false},"email_security":{"spf":"v=spf1 ip4:192.30.252.0/22 include:spf.protection.outlook.com include:_netblo...","dmarc":"v=DMARC1; p=quarantine; sp=reject; pct=100; rua=mailto:dmarc@github.com; ruf=...","grade":"A","score":95,"findings":["DNSSEC not enabled"],"dmarc_policy":"quarantine","dkim_selectors_found":["google"]}},"success":true}},"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_cbZlyhjZaC2HLAU0KvWrd","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":"Checks a domain's DNS records, WHOIS/RDAP registration details, and email security posture (SPF, DMARC, DKIM) in a single call","exampleAgentPrompt":"Can you check github.com for me — I want to see its DNS records, who registered it and when it expires, and how its email security (SPF, DMARC, DKIM) looks?","exampleUseCases":[{"title":"Vetting a supplier's domain legitimacy","prompt":"Before we wire payment to this vendor, can you check their domain acme-supplies.com — is it properly registered, who owns it, and does it have solid email security like DMARC and SPF set up?"},{"title":"Pre-launch email deliverability audit","prompt":"We're about to launch our newsletter from startupname.io — can you check whether our SPF, DMARC, and DKIM records are correctly configured so our emails won't land in spam?"},{"title":"Researching a competitor's infrastructure","prompt":"Can you pull up the DNS and registration details for competitor.com? I want to know their nameservers, MX provider, when the domain expires, and what their email security grade is."}],"resultDescription":"Returns a JSON object with: DNS records (A, MX, CAA, nameservers, DNSSEC status), registration details (registrar, created/expires/updated dates, registration status flags, availability likelihood), and email security data (SPF record, DMARC policy, DKIM selectors found, overall grade A–F, numeric score 0–100, and specific findings like missing DNSSEC).","failureModes":["Domain not found or malformed input returns empty or error response","RDAP/WHOIS lookup may be rate-limited or unavailable for some TLDs","DKIM selector detection is heuristic and may miss custom selectors","Payment failure (insufficient USDC balance) blocks the call","Very new domains may not yet have propagated DNS or registration data"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive single-call domain health report combining DNS, registration, and email security data — especially useful for due diligence, pre-send email audits, or domain availability research. It's paid per-call with no account setup required, making it ideal for ad-hoc or agent-driven lookups. Prefer it over manual WHOIS or separate DNS tools when you want a structured JSON response covering all three domains of information at once.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T12:42:15.376Z","isFirstParty":false,"canonicalSlug":"agentsvc-io-domain-check-eb0946e0"}