{"uid":"cap__Ps5wC_rYtUGjIfvKivJf","slug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-9353973c","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/spf-dmarc-auditor)","url":"https://alpha-stream.agentdiet.dev/v1/spf-dmarc-auditor?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_8G4EMUT2l3AmsZHTJZTH7","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 checks.","exampleAgentPrompt":"Can you check if john.doe@example.com is a real, deliverable email address — make sure it's not from a disposable provider and that the domain has valid MX, SPF, and DMARC records?","exampleUseCases":[{"title":"Lead list email hygiene check","prompt":"Before we import this lead into our CRM, can you verify that sales@acmecorp.com is a legitimate, deliverable email and not a burner address — and confirm the domain has proper MX and DMARC records set up?"},{"title":"Signup fraud detection","prompt":"A new user just registered with temp-mail123@guerrillamail.com — can you check if that's a disposable or throwaway email address so I know whether to flag the account?"},{"title":"Email security posture audit","prompt":"We're about to send a cold outreach campaign to marketing@bigclient.io — can you first validate that email, check whether the domain has SPF and DMARC configured, and tell me if there are any deliverability red flags?"}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the domain belongs to a known disposable/burner provider, whether it is a role account (e.g. admin@, info@), live DNS MX record presence and values, SPF record existence and content, and DMARC policy status — giving a complete deliverability and security posture assessment for the address.","failureModes":["Malformed or empty email input returns a validation error","DNS lookup timeout for domains with non-responsive nameservers","Unknown or newly registered domains may have incomplete MX/SPF/DMARC records returned","Payment failure via x402 if USDC balance is insufficient","Rate limiting if too many requests are sent without idempotency keys"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email deliverability and DNS security check in a single call — covering syntax, disposable detection, role account flags, and live MX/SPF/DMARC lookups. Prefer it over simple regex validators when you need live DNS validation, or over domain-only tools when you need per-address disposable and role account intelligence. Well-suited for agent workflows handling lead enrichment, signup validation, or outreach campaign preparation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T06:31:00.823Z","isFirstParty":false,"canonicalSlug":"alpha-stream-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-73a4bb6a"}