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OneShotAgent Email Deliverability Verifier
x402
OneShotAgent Email Deliverability Verifier is a paid API for AI agents from win.oneshotagent.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30, last successful call 2026-09-25).
Verifies whether an email address is deliverable and valid
Price / call$0.001
Success100%
StatusUnknown
How this service works
Email deliverability verification
Output
Returns a deliverability status for the submitted email address, indicating whether the email is valid and likely to be successfully delivered rather than bounced or rejected.
Example use cases
Example prompt
“Can you verify whether john.smith@acme.com is a real, deliverable email address before I add it to my outreach list?”
Technical details
Endpoint
POSThttps://win.oneshotagent.com/v1/tools/verify/email?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify individual email addresses for deliverability before sending outreach or adding to a mailing list, especially when paired with the sibling profile enrichment and email sending endpoints on the same platform for an end-to-end outreach workflow.
Side effects
- Invalid email format returns a validation error
- Unresolvable domain returns undeliverable status
- Catch-all mail servers may return ambiguous results
- Temporary DNS lookup failures may produce inconclusive results
- Payment failure or insufficient USDC balance blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string |
Output
Schema · Response
{
"type": "json",
"example": {
"risk": "low",
"mx_valid": true,
"deliverable": true
}
}Tags
x402
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