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gateway.apiosk.com Email Verification
x402
gateway.apiosk.com Email Verification is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.13/call, status unknown (last checked 2026-09-14).
Validates an email address by checking format, DNS/MX records, SMTP deliverability, disposable domain status, and role-account classification, returning a confidence score.
Price / call$0.13
Success—
StatusUnknown
How this service works
Validate a single email address: format, MX, SMTP mailbox check, and disposable/role/free classification with a deliverability score.
Output
Returns a JSON object with: overall confidence score (0–1), format validity flag, domain, MX record found flag, SMTP check result, disposable email flag, role account flag, free email provider flag, extracted username, and a 'did you mean' suggestion if a typo is detected.
Example use cases
Example prompt
“Can you verify whether support@apple.com is a real, deliverable email address — I want to know if it passes format checks, has valid MX records, and whether the mailbox actually responds to SMTP, and tell me if it's a role account or disposable address?”
Technical details
Endpoint
GEThttps://gateway.apiosk.com/email-verification/checkWhen to prefer
Use this endpoint when you need a comprehensive, multi-layered email validation that goes beyond simple format checking — especially when you need SMTP-level deliverability verification, disposable email detection, and role-account classification in a single call. Prefer it over simple regex validators when data quality for outreach, registration, or CRM enrichment is critical.
Side effects
- Invalid or missing email parameter returns an error response
- SMTP check may time out or be blocked by the mail server, returning null for smtp_check
- catch_all field returns null when the server's catch-all behavior cannot be determined
- Disposable domain database may not cover very new throwaway providers
- Rate limiting or payment failure results in a 402 response requiring x402 payment
Tags
x402
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