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Email Validation API
x402
Email Validation API is a paid API for AI agents from dominion-data.x402-evm-math.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Validates an email address by checking syntax, MX records, SPF/DMARC, disposable domains, and role addresses, returning a deliverability verdict without sending any mail.
Price / call$0.005
Success—
StatusUnknown
How this service works
Email validation API: verify an email address with syntax check, MX record lookup, SPF/DMARC, disposable and role address detection. Returns a deliverability verdict. No mail sent.
Output
Returns a structured deliverability verdict including: syntax validity, MX record existence and reachability, SPF/DMARC policy findings, whether the domain is a known disposable/temporary email provider, and whether the address is a role-based address (e.g. info@, support@). No actual email is sent during validation.
Example use cases
Pre-send campaign list scrubbing
“Before I send my email newsletter, can you validate this list of addresses and flag any that look fake, disposable, or likely to bounce? Start with user@tempmail.com and tell me the deliverability verdict.”
Sign-up form spam filtering
“A user just signed up with the email no-reply@guerrillamail.com — can you check if it's a real deliverable address or a disposable/role email I should reject?”
Sales lead email verification
“I have a sales lead whose email is listed as info@somestartup.io — can you verify whether it's valid, has proper MX records, and whether it's a generic role address rather than a real person?”
Technical details
Endpoint
GEThttps://dominion-data.x402-evm-math.workers.dev/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, no-send email validation that checks beyond simple syntax — specifically when MX record lookup, SPF/DMARC verification, disposable domain detection, and role-address flagging are all required in a single call. Ideal for pre-campaign scrubbing, sign-up fraud prevention, or CRM data hygiene where you cannot or should not send a verification email. Priced per-call at $0.005 USDC, making it cost-effective for moderate volumes via the x402 payment protocol.
Side effects
- Missing or malformed email address input returns a validation error
- Domain has no MX records — verdict returns as undeliverable
- Network timeout when looking up DNS records for obscure domains
- Rate limiting or payment failure when USDC balance is insufficient
- Newly registered domains may not yet have propagated MX/SPF records, causing false negatives
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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