{"uid":"cap_yNsA6Tyb1QUKAQhRJMF1O","slug":"mailferret-email-verification-d917f7c4","name":"MailFerret Email Verification","description":"Email verification / email validation / bounce check before sending: verify one email address: syntax, MX records, mail provider (Google Workspace, Microsoft 365, ...), catch-all detection, role/free/disposable flags and a live SMTP RCPT check. Returns deliverable, undeliverable, catch_all or no_mx. Inconclusive results (greylisting) return 503 and are not charged.","url":"https://mailferret.appin60.com/verify?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["email"],"properties":{"email":{"type":"string","minLength":3,"description":"Email address to verify"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"mx":["aspmx.l.google.com"],"email":"zeno.rocha@resend.com","status":"deliverable","provider":"google_workspace","catch_all":false,"disposable":false,"deliverable":true,"role_account":false,"free_provider":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YKyxme4Bpu0Nn1DWGAz-0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies whether a given email address is deliverable using live SMTP checks, returning deliverability status, provider, and spam/catch-all signals","exampleAgentPrompt":"Can you verify whether zeno.rocha@resend.com is a real, deliverable work email — I need to know if it's valid, catch-all, or disposable before I send outreach?","exampleUseCases":[{"title":"Sales lead email validation","prompt":"Before I add these prospects to my outreach campaign, can you check if alex.johnson@techcorp.io is a real, deliverable email and not a catch-all or disposable address?"},{"title":"Preventing bounce on signup","prompt":"A user just signed up with sarah.miller@bigcompany.com — can you verify that email is actually deliverable and not a fake or role account like info@ or support@?"},{"title":"Enriching CRM contact record","prompt":"I have a contact at marcus.lee@startupxyz.com — can you verify that email is valid and tell me what email provider they use so I can decide if it's a real work address?"}],"resultDescription":"Returns a JSON object with: deliverable (bool), status string (e.g. 'deliverable'), MX records array, email provider name (e.g. 'google_workspace'), catch_all (bool), disposable (bool), role_account (bool), and free_provider (bool). Charged $0.01 only on successful verification.","failureModes":["Invalid or malformed email address returns an error or non-deliverable status","SMTP timeout or temporary server unavailability may cause inconclusive results","Catch-all servers may respond positively to any address, limiting accuracy","Payment failure via x402/USDC may prevent the request from completing","Rate limiting or network issues may cause intermittent failures"],"whenToPreferThis":"Choose MailFerret when you need real-time, live SMTP verification of individual email addresses with no API key setup — ideal for pay-per-use agent workflows where you only pay on success. Prefer this over bulk verification services when checking one email at a time in an automated pipeline, or when you need detailed signals like catch-all, disposable, and role-account flags alongside deliverability status.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T13:37:17.278Z","isFirstParty":false,"canonicalSlug":"mailferret-email-verification-d917f7c4"}