{"uid":"cap_Vb4Hb9ptXrZvLyduQmTdw","slug":"onchain-risk-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-5604a0ea","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/disposable-email)","url":"https://onchain-risk.agentdiet.dev/v1/disposable-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_FBv81CJl3OhGUONv0_MQi","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/DMARC record presence.","exampleAgentPrompt":"Can you check whether john.doe@tempmail.com is a real, deliverable email address — specifically whether it's from a disposable provider, whether the domain has valid MX records, and whether SPF and DMARC are configured?","exampleUseCases":[{"title":"Signup fraud screening","prompt":"Before I create an account for user@guerrillamail.com, can you check if that email is from a disposable or burner provider and whether it's actually deliverable?"},{"title":"Marketing list hygiene","prompt":"I'm about to send a campaign to noreply@acme.corp — can you verify if that's a role-based address and whether the domain has working MX, SPF, and DMARC records so I know if it's worth including?"},{"title":"B2B lead email validation","prompt":"I have a sales lead with the email contact@startup.io — can you check if the email is syntactically valid, the domain accepts mail, and has proper SPF and DMARC records set up?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain belongs to a known disposable/burner provider list, whether the address is a role account (e.g. admin@, info@), and live DNS lookup results for MX, SPF, and DMARC records — giving a comprehensive deliverability and risk assessment.","failureModes":["Malformed or empty email input returns a validation error","DNS timeouts may cause MX/SPF/DMARC checks to fail or return incomplete results","Unknown or very new domains may not be in disposable provider lists even if they are burners","Payment failure via x402 returns HTTP 402 before any validation is performed","Idempotency-Key collision with a prior request may return a cached prior result"],"whenToPreferThis":"Choose this endpoint when you need a single-call, comprehensive email hygiene check that combines syntax validation, disposable-domain detection, role-account flagging, and live DNS MX/SPF/DMARC verification — especially in B2B lead enrichment, user registration fraud prevention, or email campaign list cleaning workflows where multiple signals are needed simultaneously rather than querying separate services.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:37:25.628Z","isFirstParty":false,"canonicalSlug":"onchain-risk-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-fcf933df"}