{"uid":"cap_8i62HKor4odH3Cz0MT1EY","slug":"domainsignal-domain-classification-dns-intelligence-f1742971","name":"DomainSignal Domain Classification & DNS Intelligence","description":"Pay-per-result domain qualification, DNS security audits, and website intelligence over x402.","url":"https://api.servocenter.com/api/v1/domain/classify","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","description":"Domain name, URL, or email address"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["domain","classification","has_dns","website_dns_present","mail_configured","mx_provider","spf_configured","disposable","free_email_provider","confidence","observed_at"],"properties":{"domain":{"type":"string"},"has_dns":{"type":"boolean"},"confidence":{"type":"number","maximum":1,"minimum":0},"disposable":{"type":"boolean"},"mx_provider":{"anyOf":[{"type":"string"},{"type":"null"}]},"observed_at":{"type":"string","format":"date-time"},"classification":{"enum":["disposable_email","free_email_provider","custom_domain","unresolved"],"type":"string"},"spf_configured":{"type":"boolean"},"mail_configured":{"type":"boolean"},"free_email_provider":{"type":"boolean"},"website_dns_present":{"type":"boolean"}},"additionalProperties":false}}}}},"responseSchema":{"type":"json","example":{"domain":"example.com","confidence":0.93,"classification":"custom_domain","mail_configured":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_wb0ntoB-po_Dw-VamQc9S","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Classifies a domain (or email/URL) as disposable, free provider, custom, or unresolved, and audits its DNS/mail security configuration including SPF, MX, and website DNS presence.","exampleAgentPrompt":"Can you check whether 'mailinator.com' is a disposable email domain, see if it has SPF and MX records configured, and tell me how confident you are in the classification?","exampleUseCases":[{"title":"Screen signups for throwaway emails","prompt":"A user just signed up with the email address 'user@guerrillamail.com' — can you check if that domain is disposable or a known free provider, and whether it has real mail infrastructure configured?"},{"title":"Qualify B2B lead domain","prompt":"I have a sales lead from 'contact@acmecorp.io' — can you check if that's a legitimate custom business domain with DNS and mail properly set up, or just a free email provider?"},{"title":"Audit outbound email domain security","prompt":"Before we start our email campaign, can you audit 'ourdomain.com' to confirm it has SPF records configured and mail properly set up so we don't get flagged as spam?"}],"resultDescription":"Returns a JSON object with the queried domain, a classification label (disposable_email, free_email_provider, custom_domain, or unresolved), boolean flags for has_dns, website_dns_present, mail_configured, spf_configured, disposable, and free_email_provider, the detected MX provider (or null), a confidence score between 0 and 1, and an observed_at timestamp.","failureModes":["Domain not found or unresolvable — classification returns 'unresolved' with low confidence","Invalid input format (non-domain string) — may return error or low-confidence result","Transient DNS lookup failures — may produce stale or incomplete DNS audit data","Edge-case TLDs or very new domains may have lower confidence scores"],"whenToPreferThis":"Choose this endpoint when you need to qualify or screen a domain or email address for legitimacy, detect disposable or free email providers at signup, audit DNS and mail security posture (SPF, MX), or enrich lead data with domain intelligence — especially in automated pipelines where per-call pay-as-you-go pricing (via x402) is preferred over subscription APIs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T16:29:01.493Z","isFirstParty":false}