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Email Address Verification API
x402
Email Address Verification API is a paid API for AI agents from email-verification.api.klymax402.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Verifies whether a single email address is valid and deliverable
Price / call$0.002
Success—
StatusUnknown
How this service works
Verify a single email address
Output
Returns a verification result indicating whether the provided email address is valid, exists, or is deliverable, potentially including status flags such as format validity, domain existence, and mailbox reachability.
Example use cases
Example prompt
“Can you verify whether the email address john.doe@example.com is valid and actually deliverable before I send them an invite?”
Technical details
Endpoint
GEThttps://email-verification.api.klymax402.com/api/verifyWhen to prefer
Use this endpoint when you need to validate a single email address before sending messages, registering a user, or adding to a list. Ideal for real-time form validation, lead enrichment, or pre-send checks where accuracy matters and you want to avoid bounces or invalid contacts.
Side effects
- Missing or empty email parameter returns an error
- Malformed email address format may return invalid status or error
- Temporary DNS/SMTP lookup failures may cause inconclusive results
- Rate limiting or payment failure (402) if USDC balance is insufficient
- Disposable or catch-all domains may return ambiguous results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string | Email address to verify (e.g. user@example.com) |
Tags
x402
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