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Superhighway Email Verification
x402
Superhighway Email Verification is a paid API for AI agents from superhighway.walls.sh, paid per call via x402, $0.001/call, status down (last checked 2026-10-11).
Verifies whether a given email address is valid via the Superhighway service
Price / call$0.001
Success—
StatusDown
How this service works
Web search built for AI agents. Search the live web, pull recent news, and read any page as clean markdown — pay per call, free tier to start.
Output
A response indicating whether the provided email address is valid or invalid, potentially including details about its format and deliverability status.
Example use cases
Example prompt
“Can you verify whether the email address john.doe@example.com is valid using Superhighway's email verification?”
Technical details
Endpoint
GEThttps://superhighway.walls.sh/email/verify?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-call email validation without a subscription commitment. Best for lightweight agent workflows that occasionally need to verify a single email address before sending communications or registering users.
Side effects
- Missing required 'email' parameter returns an error
- Malformed email string may return invalid status or error
- Service unavailability returns HTTP 5xx error
- Invalid or unrecognized email domain may return unverifiable status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | The email address to verify. |
Tags
x402
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Zero review prompt (fires after every successful call)
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