{"uid":"cap_bGVgwL3GDLYvaerzr4guf","slug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-a0c91555","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-check)","url":"https://serp-extract.agentdiet.dev/v1/email-check?utm_source=zero.xyz","method":"POST","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_uKf2aMIU6p_1ci2hAbHGI","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 — specifically whether it has valid MX records, passes SPF and DMARC checks, and isn't from a disposable or burner provider?","exampleUseCases":[{"title":"Validate leads before CRM import","prompt":"Before I import this batch of sign-up emails into our CRM, can you run john.doe@tempmail.com through a full deliverability check — syntax, MX records, SPF, DMARC — and flag it if it's a throwaway address?"},{"title":"Block disposable emails at sign-up","prompt":"A user just tried to register with dropmail123@guerrillamail.com — can you verify if that's a disposable or burner email address and whether the domain actually has working MX records?"},{"title":"Audit outreach list for bounces","prompt":"I'm about to send a cold outreach campaign. Can you verify that contact@acmecorp.io has valid MX records and a proper DMARC policy so I know it won't hard-bounce or get flagged as spam?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain belongs to a known disposable/burner provider, whether the account appears to be a role address (e.g. info@, support@), and live DNS check results for MX, SPF, and DMARC records.","failureModes":["Malformed or empty email input returns a validation error","DNS lookup timeout if the domain's nameservers are slow or unreachable","Unknown or very new domains may have incomplete DNS records, leading to inconclusive results","Payment failure (x402) if USDC balance is insufficient for the $0.005 per-call fee","Rate limiting if too many requests are sent in a short window"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email health check covering syntax, disposability, role account detection, and live DNS (MX/SPF/DMARC) rather than just syntax validation. It is especially useful before sending transactional or marketing emails, importing leads into a CRM, or gating sign-up flows against throwaway addresses. Prefer it over generic SMTP ping tools when you also need DNS security record verification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:16.024Z","isFirstParty":false,"canonicalSlug":"serp-extract-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18768445"}