{"uid":"cap_kOHUhLdrjR-D_5kUWxhEb","slug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-8f44e13c","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://alpha-stream.agentdiet.dev/v1/mx-check)","url":"https://alpha-stream.agentdiet.dev/v1/mx-check?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_T92dmeZ52ZMUCu0VR1vYK","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"alpha-stream.agentdiet.dev","brandSlug":"alpha-stream-agentdiet-dev-mpp","brandBaseUrl":"https://alpha-stream.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider detection, role account flags, and live DNS MX, SPF, and DMARC record checks.","exampleAgentPrompt":"Can you check whether john.doe@tempmail.org is a valid, deliverable email address — specifically whether the domain has working MX records, and whether it's a disposable or role-based account?","exampleUseCases":[{"title":"Pre-send list hygiene check","prompt":"Before I send this marketing campaign, can you verify that contact@acmecorp.com is a real deliverable address — check the MX records, SPF, DMARC, and make sure it's not a throwaway or role account?"},{"title":"Catch fake signups at registration","prompt":"A new user just signed up with the email signup123@guerrillamail.com — can you tell me if that's a disposable burner email so I can decide whether to let them through?"},{"title":"B2B lead email validation","prompt":"I've got a prospective lead at jane.smith@partnerdomain.io — can you verify the email is syntactically valid, the domain has live MX records, and the address isn't a generic role account before I reach out?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain is a known disposable/burner provider, whether the address is a role account (e.g. info@, admin@), and the live DNS status of MX, SPF, and DMARC records for the domain.","failureModes":["Missing or malformed email parameter returns a validation error","DNS lookup timeout if the domain's nameservers are slow or unresponsive","False negatives on newly created disposable domains not yet in blocklists","Role account detection may miss uncommon role prefixes","Payment failure via x402 if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond syntax checking — specifically when you need live DNS MX, SPF, and DMARC record verification combined with disposable-provider and role-account detection in a single call. Prefer it over basic regex validators when onboarding users, qualifying B2B leads, or scrubbing mailing lists to reduce bounce rates and spam complaints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:51:24.900Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-73a4bb6a"}