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Apiosk Gateway – Email Verification
x402
Apiosk Gateway – Email Verification is a paid API for AI agents from gateway.apiosk.com, paid per call via x402, $0.13/call, status unknown (last checked 2026-09-14).
Verifies whether an email address is valid, deliverable, and non-disposable via a pay-per-call x402 gateway endpoint.
Price / call$0.13
Success—
StatusUnknown
How this service works
Pay-per-call API gateway on the x402 protocol (HTTP 402 + USDC on Base). This document covers the gateway's discovery and execution meta-endpoints. Individual provider APIs are reachable at /{api_slug}/{path} and described by GET /{api_slug}/metadata.
Output
Returns a JSON object with a status field indicating success or failure, a result field containing the upstream verification response (validity, deliverability, disposable flags, etc.), the operation performed, upstream HTTP status code, latency in milliseconds, and cost of the call in USDC.
Example use cases
Signup form email gating
“Before we create this account, verify that 'newuser@tempmail.org' is a real, non-disposable email address that can actually receive messages.”
Bulk CRM list hygiene
“I have a lead email 'sales.contact@somebiz.net' — can you validate it to make sure it's deliverable and not going to bounce before we add it to our outreach campaign?”
Fraud prevention at checkout
“A customer just entered 'buyer123@fakeinbox.com' during checkout — can you check if that email is legitimate or looks like a throwaway address?”
Technical details
Endpoint
POSThttps://gateway.apiosk.com/email-verification/executeWhen to prefer
Choose this endpoint when you need real-time, per-call email validation paid via crypto (USDC on Base) without a subscription, especially in agent workflows where micropayment-based access is preferred over API key management. Ideal for low-volume or on-demand checks where pay-per-use pricing at $0.13/call is acceptable.
Side effects
- Invalid or malformed email input returns an error status from upstream
- Upstream provider unavailable causes non-200 upstream_status with degraded result
- Missing or malformed operation selector causes gateway-level rejection
- Insufficient USDC balance or failed x402 payment prevents execution
- Rate limiting or quota exhaustion from upstream provider
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | JSON payload forwarded to the selected operation. |
| operation | string | Operation id, /path, or METHOD /path selector. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| api | string | |
| cost | string | |
| resultrequired | — | Upstream response body. |
| statusrequired | string | |
| latency | number | |
| operation | string | |
| upstream_status | integer |
Tags
x402
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