{"uid":"cap_J4UKxIJVor0bYQxzRdbJp","slug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-a7dc2637","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/email-validator)","url":"https://serp-extract.agentdiet.dev/v1/email-validator?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_692gf0WBWUbpPXHCOpzTj","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 checks.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — specifically whether the domain has valid MX records, isn't a disposable provider, and passes SPF and DMARC checks?","exampleUseCases":[{"title":"Screen signups for throwaway emails","prompt":"Before I add this new user to my database, can you verify that their signup email address no-reply-test@mailnull.com isn't from a burner or disposable provider, and that it has working MX records so messages will actually deliver?"},{"title":"Pre-send deliverability audit for sales outreach","prompt":"I'm about to send a cold outreach campaign — can you check if ceo@prospectcorp.io is a deliverable address with valid MX, SPF, and DMARC records so I don't hurt my sender reputation?"},{"title":"Flag role accounts in lead list","prompt":"I have a lead email address info@bigcompany.com — can you tell me if it's a role account, whether the domain has real mail infrastructure, and if it's safe to email?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain uses a disposable/burner email provider, whether the address appears to be a role account (e.g. admin@, info@), live MX record presence and details, SPF record existence and content, and DMARC policy record status — together forming a deliverability verdict.","failureModes":["Invalid or malformed email string returns a syntax error flag","Domain with no MX records returns deliverability failure","DNS lookup timeout for slow or unreachable domains may cause delayed or partial results","Disposable provider lists may not cover brand-new burner services","Rate limiting or payment failure (HTTP 402) if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time multi-signal email validation that goes beyond simple regex — specifically when you need live DNS MX, SPF, and DMARC checks combined with disposable provider and role account detection in a single call. Prefer it over basic syntax validators for lead qualification, signup fraud prevention, or pre-send deliverability auditing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:22.759Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18768445"}