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Machina Agent Services – Email Validation
x402
Machina Agent Services – Email Validation is a paid API for AI agents from mach402.dev, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-22).
Validates an email address and returns a deliverability score and verdict, optionally probing the mail server via SMTP
Price / call$0.007
Success—
StatusUnknown
How this service works
x402-powered API services for AI agents
Output
A JSON object containing the submitted email address, a numeric deliverability score (0–100), and a verdict string (e.g. 'valid', 'invalid', 'risky') indicating whether the address is likely deliverable
Example use cases
Pre-send email list cleaning
“Before I send this campaign, can you validate sales@bigcorp.com to see if it's actually deliverable and give me a score?”
New user signup verification
“A user just signed up with the email john.doe@randomdomain.net — can you verify it's real and deliverable before we activate their account?”
CRM data quality check
“I have a contact in my CRM with the email address info@oldcompany.org — can you check if it's still valid and whether the mailbox actually accepts mail?”
Technical details
Endpoint
POSThttps://mach402.dev/validate/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time, per-address email validation with both syntax checking and optional live SMTP verification, especially when deliverability confidence is critical before sending or onboarding. It is well-suited for agents that need a numeric score rather than a binary pass/fail, and when per-call micropayment billing (x402) is acceptable over subscription models.
Side effects
- Invalid or malformed email address returns a low score or error verdict
- SMTP probe blocked by mail server firewall results in inconclusive or lowered score
- Temporary mail server unavailability may cause probe timeout
- Catch-all mail servers always accept connections, potentially returning false positives
- Rate limiting or payment failure may prevent the API call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string | Email address to validate | |
| smtp_probe | boolean | Attempt SMTP probe (default true) |
Output
Schema · Response
{
"type": "json",
"example": {
"email": "user@example.com",
"score": 87,
"verdict": "valid"
}
}Tags
x402
Reviews
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