Validate an email address
Check whether an email address is deliverable: syntax, domain MX records and, where the offer supports it, an SMTP mailbox probe plus disposable/role classification.
price-ascending: candidates are ordered by the listed price of the operation, with no managed-first preference applied. Unlike /v1/apis, this surface does not rank Apiosk-settled listings above federated ones — a comparison that reorders on commercial grounds is not a comparison. Pass sort=managed_first for the catalog's ordering.
| Provider | Operation | Price | Settlement | Notes |
|---|---|---|---|---|
| WebberSites x402 Data API | GET /api/email/verify | $0.0020 | direct to provider | Federated: pay the provider directly, not through the gateway. |
| Email Verification | GET /check | $0.13 | via Apiosk | Includes an SMTP mailbox probe plus disposable/role/free classification. |
Compared: listed price, settlement rail and input compatibility. Not measured yet: latency, reliability, result quality, and provider terms such as rate limits, jurisdiction and licensing.