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PennyRail UUID Validation
x402
PennyRail UUID Validation is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-27).
Validates whether a given string is a properly formatted UUID
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object containing an 'operation' field (a string naming the operation performed, e.g. 'validation.uuid') and a 'result' field indicating whether the input string is a valid UUID, along with any additional metadata about the validation outcome.
Example use cases
Validate user-submitted record ID
“A user submitted the ID '123e4567-e89b-12d3-a456-426614174000' as their record reference — can you verify it's a properly formatted UUID before I store it in the database?”
Sanitize API input before processing
“Before I pass this identifier to the downstream service, check if 'not-a-uuid-at-all' is a valid UUID so I can reject bad inputs early.”
Debug malformed identifier in pipeline
“My data pipeline is throwing errors on this ID: 'g550e840-e29b-41d4-a716-44665544000z' — can you validate whether it's a well-formed UUID?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/f/validation.uuid?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call UUID format validation without standing up your own validation logic. Useful in agent pipelines where untrusted user input must be sanitized before being used as a database key or API parameter. At $0.001 USDC per call it is cost-effective for low-to-medium volume spot checks.
Side effects
- Missing 'input' field in request body returns a validation error
- Non-string input type may cause schema rejection
- Payment failure (402) if USDC balance is insufficient
- Network timeout if Vercel cold start is slow
- Ambiguous or empty string input may return false/invalid result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| resultrequired | — | |
| operationrequired | string |
Tags
x402
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