{"uid":"cap_QWHdjqqx7tASE23GRlluQ","slug":"json-repair-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-c5febe5f","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://json-repair.agentdiet.dev/v1/mx-check)","url":"https://json-repair.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_Jz_LupG3qJaJbK8e6kPLT","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"json-repair.agentdiet.dev","brandSlug":"json-repair-agentdiet-dev-mpp","brandBaseUrl":"https://json-repair.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Validates an email address for syntax correctness, disposable/burner provider detection, role account identification, and live DNS MX/SPF/DMARC record lookup to confirm deliverability.","exampleAgentPrompt":"Can you check if john.doe@example.com is a real, deliverable email address — I want to know if the syntax is valid, whether the domain has proper MX records, and whether it looks like a disposable or role-based account?","exampleUseCases":[{"title":"Pre-send email list hygiene","prompt":"Before I launch this email campaign, check whether marketing@bigcorp.io is actually deliverable — validate the syntax, confirm MX records exist, and flag it if it's a role account or comes from a burner provider."},{"title":"User signup fraud detection","prompt":"A new user just signed up with the address temp.user99@mailnull.com — can you verify whether this is a disposable or burner email and check if the domain has valid MX records before I allow the account?"},{"title":"B2B lead email verification","prompt":"I've got a lead with the contact email ceo@startupxyz.co — run a full deliverability check on it: syntax, MX records, SPF, and DMARC, so I know if it's safe to reach out."}],"resultDescription":"Returns a structured object indicating email syntax validity, whether the provider is a known disposable/burner service, whether the address is role-based (e.g. admin@, info@), and live DNS lookup results for MX, SPF, and DMARC records — giving a complete picture of whether the address is likely to receive email.","failureModes":["Invalid or missing email parameter returns an error","DNS timeout or unreachable nameserver may result in inconclusive MX/SPF/DMARC results","Newly registered domains may not yet have propagated DNS records, causing false negatives","Disposable provider database may lag behind newly created burner services","Payment failure (HTTP 402) if USDC balance is insufficient"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, real-time email deliverability check that combines syntax validation, disposable/burner detection, role account flagging, and live DNS MX/SPF/DMARC lookup in a single call — especially useful for agent workflows handling user signups, B2B lead enrichment, or pre-campaign email list cleaning where deliverability and fraud risk both matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:34.335Z","isFirstParty":false,"canonicalSlug":"json-repair-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-be2e6dc4"}