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M0 Email Verification
x402
M0 Email Verification is a paid API for AI agents from m0.aiverall.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Verifies an email address by checking syntax validity, domain resolution, and mailbox existence before enriching or contacting a lead
Price / call$0.005
Success—
StatusUnknown
How this service works
Machine-native capabilities for agents. Primary: URL Extraction -- fetch a public URL, get back clean text, no third-party dependency. Also available: pre-flight lead-quality signals before spending money enriching, contacting, or storing a lead.
Output
Returns a JSON object with: the domain extracted from the email, a versioned identifier (m0-email-verify-v1), a boolean for valid syntax, a boolean indicating whether the domain resolves (MX/DNS check), and a boolean for whether the mailbox was confirmed as existing.
Example use cases
Pre-outreach lead email screening
“I have a new lead with the email sarah.johnson@startup.io — before I spend time enriching her profile or sending a cold email, can you check if the address is valid, the domain resolves, and the mailbox is confirmed?”
CRM data hygiene check
“We're about to import 500 contacts into our CRM — can you verify the email address mark.taylor@bigclient.com as a test to see if it passes syntax, domain, and mailbox checks before we bulk-upload the rest?”
Campaign budget protection
“Before I pay to enrich this lead and add them to our email campaign, verify that prospects@newco.com is a legitimate email — I need to know if the syntax is clean, the domain is live, and whether the mailbox is confirmed.”
Technical details
Endpoint
POSThttps://m0.aiverall.com/v1/verify-emailWhen to prefer
Choose this endpoint when you need a lightweight, no-third-party pre-flight check on an email address before spending resources on enrichment, outreach, or CRM storage. Ideal for agents managing lead pipelines that need to gate on email quality without integrating a heavyweight email validation SaaS. Best when cost-per-check matters ($0.005 USDC) and you want a machine-native, pay-per-use model with no subscription overhead.
Side effects
- Invalid or malformed email input returns syntax error or valid_syntax: false
- Unresolvable domain returns domain_resolves: false with mailbox_confirmed: false
- Catch-all mail servers may prevent definitive mailbox_confirmed determination (returns false even for valid boxes)
- Temporary DNS or SMTP timeout may return inconclusive result
- Rate limiting or payment failure returns 402 or 429 error
Output
Schema · Response
{
"type": "object",
"format": "json",
"example": {
"domain": "example.com",
"version": "m0-email-verify-v1",
"valid_syntax": true,
"domain_resolves": true,
"mailbox_confirmed": false
}
}Tags
x402
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