{"uid":"cap_cSueYPs_rfs3vza3jYA_Y","slug":"mcp-security-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-53851a2a","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://mcp-security.agentdiet.dev/v1/disposable-email)","url":"https://mcp-security.agentdiet.dev/v1/disposable-email?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_RIfH6zQmap_u5uhqyAlpK","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"mcp-security.agentdiet.dev","brandSlug":"mcp-security-agentdiet-dev-mpp","brandBaseUrl":"https://mcp-security.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 checks to assess deliverability and legitimacy.","exampleAgentPrompt":"Can you check if john.doe@tempmail.io is a real, deliverable email address — specifically whether it's a disposable or burner provider, and whether the domain has valid MX, SPF, and DMARC records set up?","exampleUseCases":[{"title":"Screening signups for fake emails","prompt":"We're getting a lot of signups with throwaway emails — can you check if support@guerrillamail.com is a disposable or burner address and whether its domain even has working mail servers?"},{"title":"B2B lead email validation before outreach","prompt":"Before I add jane.smith@prospectcorp.com to our outreach sequence, can you verify it's a real deliverable address, not a role account, and that the domain has SPF and DMARC records?"},{"title":"Email hygiene audit for a single contact","prompt":"I want to know if noreply@randomstartup.io is actually deliverable — check the syntax, whether it's a role-based address, and look up the MX and SPF records for that domain."}],"resultDescription":"Returns a structured object indicating whether the email passes syntax validation, whether the domain is a known disposable/burner provider, whether the address is a role account, and the live DNS status of MX, SPF, and DMARC records for the domain.","failureModes":["Missing or malformed email parameter returns a 400/422 error","DNS lookup timeout if the domain's nameservers are slow or unresponsive","Unknown or newly registered domains may lack MX/SPF/DMARC records, returning empty DNS fields","Payment not fulfilled triggers an HTTP 402 response requiring x402 USDC payment","Rate limiting may occur for high-frequency queries without proper payment"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, multi-signal email check combining syntax validation, disposable provider detection, role-account flagging, and live DNS MX/SPF/DMARC lookups in a single call. Prefer it over simple regex-only validators when deliverability and anti-fraud signals matter, such as gating user signups, qualifying B2B leads, or auditing contact lists before email campaigns.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:20:57.053Z","isFirstParty":false,"canonicalSlug":"mcp-security-agentdiet-dev-b2a-email-deliverability-mx-spf-dmarc-87cfc270"}