{"uid":"cap_mubytOgbI1v1iW_lsPhJP","slug":"whale-momentum-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-216882cb","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://whale-momentum.agentdiet.dev/v1/spf-dmarc-auditor)","url":"https://whale-momentum.agentdiet.dev/v1/spf-dmarc-auditor?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_yD0X1FD_7jej5XkK-EqYa","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"whale-momentum.agentdiet.dev","brandSlug":"whale-momentum-agentdiet-dev-mpp","brandBaseUrl":"https://whale-momentum.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 whether john.doe@example.com is a real deliverable address — specifically verify the MX records exist, whether it's from a disposable provider, and if the domain has proper SPF and DMARC records set up?","exampleUseCases":[{"title":"Lead email screening before outreach","prompt":"Before I add this lead to my CRM campaign, check if sarah.jones@tempmail.io is a real deliverable email or a throwaway — I need to know if the MX records exist and if it's flagged as a burner provider."},{"title":"Email authentication audit for a domain","prompt":"Can you check user@acmecorp.com to see if their domain has SPF and DMARC DNS records properly configured? I'm assessing their email security posture."},{"title":"Sign-up form spam detection","prompt":"A new user just registered with the email admin@guerrillamail.com — can you tell me if that's a role account or disposable/burner address before I approve their account?"}],"resultDescription":"Returns a structured object indicating whether the email address passes syntax validation, whether the domain has live MX records (confirming deliverability), whether the address belongs to a known disposable or burner email provider, whether it is a role-based account (e.g. info@, support@), and whether the domain's DNS includes valid SPF and DMARC records.","failureModes":["Missing or invalid email parameter returns a 400-level error","DNS lookup timeout if the domain's nameservers are slow or unreachable","False negatives on newer disposable providers not yet in the blocklist","Role account detection may miss uncommon role prefixes","DMARC/SPF records may be stale if DNS TTL is high","HTTP 402 payment required if x402 micropayment is not properly attached"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive single-call check combining syntax validation, live DNS MX lookup, SPF/DMARC authentication record auditing, and disposable/role account detection — rather than using separate tools for each concern. Ideal for B2B lead enrichment pipelines, sign-up fraud prevention, or pre-send email list hygiene where both deliverability and security posture matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:19:52.235Z","isFirstParty":false,"canonicalSlug":"whale-momentum-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-44657b70"}