{"uid":"cap_AKna7NW4sU8zjrvXIWQxJ","slug":"onchain-risk-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-18fac897","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://onchain-risk.agentdiet.dev/v1/email)","url":"https://onchain-risk.agentdiet.dev/v1/email?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_aEQtCNnxv8QoWPqn4X2-A","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"onchain-risk.agentdiet.dev","brandSlug":"onchain-risk-agentdiet-dev-mpp","brandBaseUrl":"https://onchain-risk.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 verify whether john.doe@tempmail.com is a real, deliverable email address — check if it's a disposable provider, a role account, and whether the domain has valid MX, SPF, and DMARC records?","exampleUseCases":[{"title":"Signup fraud prevention screening","prompt":"Before I create an account for this new user, can you check whether their email address support@guerrillamail.com is from a disposable provider, a role account, or missing proper DNS records? I want to block fake signups."},{"title":"Pre-send email list hygiene","prompt":"I'm about to send a marketing campaign and need to validate this lead's email: ceo@acmecorp.io — can you confirm it has working MX records, passes SPF and DMARC checks, and isn't a role or throwaway address?"},{"title":"B2B lead quality assessment","prompt":"I just scraped a contact email from a company website: info@startupxyz.com — can you tell me if it's actually deliverable, whether it's a generic role account, and if the domain has email authentication set up properly?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the address belongs to a known disposable or burner email provider, whether it is a role account (e.g. info@, admin@, noreply@), and live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and trustworthiness assessment.","failureModes":["Malformed or missing email field returns a validation error","DNS lookup timeout for domains with slow or unresponsive nameservers","False negatives on very new disposable providers not yet in the known list","Role account detection may miss custom or unconventional role-like addresses","DMARC/SPF parsing may fail on complex or malformed DNS record formats"],"whenToPreferThis":"Choose this endpoint when you need a multi-dimensional email validation that goes beyond simple syntax checking — specifically when you need to combine disposable provider detection, role account identification, and live DNS MX/SPF/DMARC verification in a single call. It is ideal for fraud prevention workflows, lead quality scoring, and pre-send list hygiene where false signups or undeliverable addresses carry business risk.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:30:34.649Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-fcf933df"}