{"uid":"cap_r9PYIWx2eZ8mRoXwnVUlT","slug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-81e9a233","name":"B2A Email Deliverability, MX, SPF & DMARC Verifier","description":"Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://serp-extract.agentdiet.dev/v1/spf-dmarc-auditor)","url":"https://serp-extract.agentdiet.dev/v1/spf-dmarc-auditor?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["email"],"properties":{"email":{"type":"string","minLength":1,"description":"Email address to validate for syntax, MX deliverability, and disposable risk"},"limit":{"type":"integer","default":20,"maximum":100,"minimum":1,"description":"Maximum number of items to return per page (1-100)"},"cursor":{"type":"string","description":"Opaque pagination cursor for fetching the next page"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.005","displayCostAsset":"USD","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":"$0.005/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oJyzk7HVhqDI4LaU_roqb","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"serp-extract.agentdiet.dev","brandSlug":"serp-extract-agentdiet-dev-mpp","brandBaseUrl":"https://serp-extract.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record health.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email — verify its MX records, whether the domain has SPF and DMARC set up, and flag it if it's a disposable or role-based address?","exampleUseCases":[{"title":"Lead form email screening","prompt":"Before I add this signup to my CRM, check if the email address they submitted — user123@mailinator.com — is from a disposable provider and whether the domain actually has MX records set up so I know if it's worth following up."},{"title":"Email authentication compliance audit","prompt":"I'm about to start a cold outreach campaign to contacts at acme.com — can you verify that the domain behind this email address sales@acme.com has valid SPF and DMARC DNS records so my emails won't get rejected?"},{"title":"User registration fraud prevention","prompt":"A new user just signed up with the email noreply@tempmail.org — can you tell me if that's a role account or a burner email address, and whether it's actually deliverable?"}],"resultDescription":"Returns a structured object containing: email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), live DNS MX record presence and details, SPF record status, and DMARC policy record status — giving a comprehensive deliverability and authenticity assessment.","failureModes":["Invalid or malformed email string returns a syntax error or invalid flag","Domain with no MX records returns MX lookup failure or undeliverable status","DNS timeout or unreachable nameserver may cause lookup errors","Newly registered domains may lack SPF/DMARC records, returning absent/missing flags","Edge-case TLDs or internationalized domain names may not be fully supported","Rate limiting or payment failure (HTTP 402) if USDC micropayment is not processed"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, live DNS-backed email validation that covers syntax, disposable provider detection, role account identification, and full SPF/DMARC authentication record auditing in a single call — particularly in B2B lead enrichment, user onboarding fraud prevention, or pre-campaign deliverability checks. Prefer this over simple regex or syntax-only validators when you need real-time DNS verification and email authentication compliance data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:22:15.692Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18768445"}