{"uid":"cap_av7OLGymk4LKuTCfTm12K","slug":"fiatdock-email-deliverability-check-d1a0a173","name":"FiatDock Email Deliverability Check","description":"Pay-per-call: Email Deliverability","url":"https://fiatdock.com/s/svc_2b5f41de-170a-4a11-a45c-2bd46e445d18?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UmwYfNYgbBXFEXHtUF_bB","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks the deliverability of an email address by analyzing syntax, DNS/MX records, and inbox-level signals","exampleAgentPrompt":"Can you check whether the email address john.doe@example.com is actually deliverable — like does the domain have valid MX records and will the inbox accept messages?","exampleUseCases":[{"title":"CRM lead email validation","prompt":"Before we import this list of leads into our CRM, can you check if the email address sarah.jones@acmecorp.io is deliverable and likely to accept mail without bouncing?"},{"title":"Reduce bounce rate before campaign","prompt":"We're about to send a marketing email to newsletter@techstartup.co — can you verify that email address is deliverable and the domain actually has working mail servers set up?"},{"title":"Detect fake signup email","prompt":"A user just signed up with the email dropbox123@mailinator.com — can you check if that's a real deliverable inbox or a throwaway/disposable address?"}],"resultDescription":"Returns deliverability assessment for the given email address, including syntax validity, MX record presence, domain mail configuration, inbox-level reachability signals, and any risk flags such as disposable or catch-all domains.","failureModes":["Missing or malformed email address argument returns argument error (call is still billed)","Domain has no MX records — reported as undeliverable","Catch-all domains may show as deliverable even if specific inbox does not exist","Temporary DNS lookup failures may cause inconclusive results","Rate limits or timeouts on MX probing may reduce accuracy"],"whenToPreferThis":"Use this endpoint when you need a deeper deliverability signal beyond basic syntax checking — it goes beyond format validation to probe DNS/MX infrastructure and inbox-level signals. Prefer it over the sibling 'Email syntax + MX check' endpoint when you need a fuller deliverability score including risk classification. Best for pre-send validation, lead qualification, or signup fraud detection at $0.01 per check.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:40:32.280Z","isFirstParty":false,"canonicalSlug":"fiatdock-email-deliverability-check-d1a0a173"}