{"uid":"cap_44DKnQp2OVSge4i0N95RG","slug":"hn-pulse-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-30d5b97f","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://hn-pulse.agentdiet.dev/v1/email-check)","url":"https://hn-pulse.agentdiet.dev/v1/email-check?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"}}},"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_ILr8EGwJNZqcR4KnI_eIn","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"hn-pulse.agentdiet.dev","brandSlug":"hn-pulse-agentdiet-dev-mpp","brandBaseUrl":"https://hn-pulse.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 — specifically whether it passes syntax checks, isn't a disposable or burner address, and has valid MX, SPF, and DMARC DNS records?","exampleUseCases":[{"title":"Screening sign-ups for fake emails","prompt":"Before activating this new user account, can you verify that signup@mailinator.com is a legitimate deliverable email address and not a disposable or burner provider?"},{"title":"B2B lead list email hygiene","prompt":"I have a sales lead with the email contact@acmecorp.io — can you check if it's a real deliverable address, not a role account, and whether the domain has proper MX and SPF records configured?"},{"title":"Email domain DNS health audit","prompt":"Can you verify whether support@startup.dev has working MX records and a DMARC policy set up, so I know if emails sent there would actually be delivered?"}],"resultDescription":"Returns a structured object indicating whether the email passes syntax validation, whether the domain uses a known disposable or burner email provider, whether it is a role account (e.g. admin@, noreply@), and the live DNS status of MX, SPF, and DMARC records for the email's domain — giving an overall deliverability assessment.","failureModes":["Missing or empty email parameter returns a 400 validation error","Malformed email string may return a syntax-invalid result without DNS lookup","DNS lookup timeout for domains with slow or unresponsive nameservers","Payment required (HTTP 402) if x402 USDC payment header is absent or invalid","Unknown or newly registered domains may lack MX/SPF/DMARC records, returning not-configured status"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, live email validation that goes beyond simple regex checks — specifically when you need real-time DNS MX/SPF/DMARC verification combined with disposable provider and role account detection in a single call. Prefer it for agent-native B2A workflows that support HTTP 402 micropayment billing per lookup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:22:57.112Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-c670a243"}