{"uid":"cap_vsBAPsJ-WO4L6q6ihtJre","slug":"email-verify-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-f4a3bb6e","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://email-verify.agentdiet.dev/a2a)","url":"https://email-verify.agentdiet.dev/a2a?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":"0.005000","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.005000/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005000","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.005000","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C_3AaXCKhyJvgSRFtX7tv","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005000","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.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 lookups to assess deliverability.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a real, deliverable email address — specifically whether it passes syntax checks, isn't from a disposable provider, and has valid MX, SPF, and DMARC DNS records?","exampleUseCases":[{"title":"Lead quality screening before outreach","prompt":"Before we send the cold email campaign, can you verify that sarah.jones@acmecorp.io is a legitimate deliverable address — not a throwaway or role account — and that the domain has MX records set up?"},{"title":"User signup fraud prevention","prompt":"A new user just registered with signup@tempmail.org — can you check if that's a disposable burner email and whether the domain has proper SPF and DMARC records before we approve the account?"},{"title":"B2B domain email hygiene audit","prompt":"We have a prospect at partnerships@bigbrand.com — can you validate that email address for deliverability, check if it's a role account, and confirm their domain's DNS email security records like SPF and DMARC are in place?"}],"resultDescription":"Returns a structured object indicating whether the email passes syntax validation, whether the provider is a known disposable or burner service, whether the address appears to be a role account (e.g. info@, admin@), and the live DNS lookup results for MX, SPF, and DMARC records — allowing the agent to assess overall deliverability and trustworthiness of the address.","failureModes":["Invalid or malformed email address provided — returns syntax error","Email domain has no MX records — flagged as undeliverable","DNS lookup timeout for MX/SPF/DMARC — may return partial results","Rate limiting or payment failure (HTTP 402) if x402 micropayment not completed","Empty or missing email parameter — returns validation error"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call email validation that combines syntax checking, disposable/burner detection, role account flagging, AND live DNS record verification (MX, SPF, DMARC) in one request. Prefer it over basic syntax validators when you need to confirm a domain is actually configured to receive email, or over simple disposable-detection tools when you also need DNS-level deliverability signals. Well-suited for lead enrichment pipelines, fraud prevention at signup, and pre-send email hygiene checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:35:52.736Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-425d30b4"}