{"uid":"cap_pD3JJ-CsZZysoqIuMajrs","slug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-4205642f","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/email-validator)","url":"https://alpha-stream.agentdiet.dev/v1/email-validator?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_qoW_NOOveAtktHASvWf44","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 status, role-account detection, and live DNS MX, SPF, and DMARC record availability.","exampleAgentPrompt":"Can you check whether john.doe@example.com is a valid, deliverable email — specifically whether it's a disposable address, a role account, and whether the domain has proper MX, SPF, and DMARC records set up?","exampleUseCases":[{"title":"Lead list email hygiene screening","prompt":"I've got a lead I want to reach out to — can you verify that sarah.jones@prospectcorp.com is a real, deliverable address and not a throwaway or role-based email before I add her to my outreach sequence?"},{"title":"User signup disposable email detection","prompt":"A new user just registered with the email temp4now@mailinator.com — can you check if this is a disposable or burner address so I can decide whether to block the signup?"},{"title":"Email domain DNS health check","prompt":"Can you check the email domain for devops@newstartup.io and tell me if their MX, SPF, and DMARC records are all properly configured so I know if emails to them will actually get delivered?"}],"resultDescription":"Returns a structured object indicating whether the email passed syntax validation, whether the domain uses a known disposable or burner provider, whether the address is a role account (e.g. admin@, info@), and whether the domain has live MX records (indicating mail can be received), along with SPF and DMARC DNS record presence and details.","failureModes":["Missing or malformed email parameter returns a 400-level error","DNS lookup timeout if the email domain is unreachable or non-existent","False negatives on disposable providers not yet in the known-list","Payment required (HTTP 402) if x402 USDC micropayment is not completed","Domain exists but has no MX records, flagging as undeliverable even if syntactically valid"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email validation that goes beyond simple syntax checking — specifically when you need live DNS MX, SPF, and DMARC verification combined with disposable provider and role-account detection in a single API call. Ideal for B2B lead enrichment pipelines, user registration flows, and outreach pre-screening. Prefer this over generic syntax-only validators when email deliverability and fraud risk signals matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:44.207Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-73a4bb6a"}