{"uid":"cap_ie94XSh8mp9Pz5S-O3KK8","slug":"x402-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-6c34d568","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://x402-audit.agentdiet.dev/v1/email-check)","url":"https://x402-audit.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_ippf6NmLrUL-pIIO3ITsU","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"x402-audit.agentdiet.dev","brandSlug":"x402-audit-agentdiet-dev-mpp","brandBaseUrl":"https://x402-audit.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 presence.","exampleAgentPrompt":"Can you check if john.doe@example.com is a real, deliverable email — specifically whether it has valid MX records, passes SPF and DMARC, and isn't from a disposable or burner service?","exampleUseCases":[{"title":"Signup fraud prevention for SaaS","prompt":"Before I activate this new user account, check if the email they signed up with — temp9283@mailinator.com — is from a disposable or burner provider and whether it has working MX records."},{"title":"Pre-send outreach list cleanup","prompt":"I'm about to send a cold outreach campaign. Can you validate info@acmecorp.io to make sure it has live MX records, isn't a role account, and the domain has SPF and DMARC configured?"},{"title":"CRM data quality audit","prompt":"We have a suspicious lead in our CRM with the email noreply@freetempemail.net — can you verify whether it's deliverable, check its DNS records, and flag if it's a disposable or role address?"}],"resultDescription":"Returns a structured object indicating whether the email address passes syntax checks, whether the domain has live MX records (confirming it can receive mail), SPF and DMARC record presence/validity, whether the provider is a known disposable/burner service, and whether the address appears to be a role account (e.g. info@, admin@, support@).","failureModes":["Invalid or malformed email string returns a syntax validation error","DNS lookup timeout if the domain's nameservers are slow or unreachable","Unknown or newly registered domains may lack MX/SPF/DMARC records resulting in missing-record flags","Payment failure via x402 if insufficient USDC balance, blocking the request","Rate limiting if too many requests are sent in rapid succession"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-signal email check in a single call — combining syntax, disposable-provider detection, role-account identification, and live DNS MX/SPF/DMARC lookup — rather than a simple format-only validator. Particularly useful for SaaS signup flows, B2B lead enrichment, pre-send email list hygiene, or anti-fraud pipelines where knowing whether an email domain is actually configured to receive mail is critical.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:43.059Z","isFirstParty":false,"canonicalSlug":"x402-audit-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-verifier-bdea972c"}