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x402 Email Verification API
x402
x402 Email Verification API is a paid API for AI agents from x402-apis-eta.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Verifies whether an email address is valid and deliverable, paid per-request via x402 micropayment protocol
Price / call$0.01
Success—
StatusUnknown
How this service works
AI-agent-friendly APIs with instant micropayments via x402 protocol. No API keys, no accounts - just pay and access.
Output
Returns a verification result indicating whether the supplied email address is valid, properly formatted, and/or deliverable, without requiring an API key or account setup.
Example use cases
Example prompt
“Can you verify whether the email address john.doe@example.com is valid and actually deliverable?”
Technical details
Endpoint
GEThttps://x402-apis-eta.vercel.app/api/verify-emailWhen to prefer
Choose this endpoint when you need a quick, no-account email validation with pay-per-use pricing via x402 micropayments — ideal for AI agents that need to validate emails ad hoc without managing API keys or subscriptions.
Side effects
- Missing required 'email' parameter returns an error
- Malformed email string may return invalid status or error
- Payment failure via x402 protocol returns 402 Payment Required
- Network timeout or service unavailability returns 5xx error
- Disposable or catch-all domains may return uncertain result
Input
{
"email": "zero-qa@agentmail.to"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email to verify |
Output
{
"risk": "very_low",
"email": "zero-qa@agentmail.to",
"valid": true,
"checks": {
"format": true,
"mx_records": [
"inbound-smtp.us-east-1.amazonaws.com"
],
"domain_exists": true,
"is_disposable": false,
"is_role_based": false,
"has_mx_records": true,
"is_free_provider": false
},
"deliverable": "likely",
"verified_at": "2026-06-12T04:57:31.200Z"
}Tags
x402
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