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PennyRail URL Encoder
x402
PennyRail URL Encoder is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
URL-encodes a string, percent-encoding special characters for safe use in URLs
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns a JSON object with an 'operation' field indicating 'url-encode' and a 'result' field containing the percent-encoded version of the input string, where spaces become %20, ampersands become %26, and other special characters are similarly escaped.
Example use cases
Encoding query parameter values
“I need to URL-encode this search query before appending it to a URL: 'coffee shops near me & open late'”
Sanitizing user input for HTTP request
“Take this user-submitted text and URL-encode it so I can safely include it as a path segment: 'John's report #42 / final draft'”
Preparing webhook callback URL
“URL-encode this string so I can embed it as a parameter in a redirect URL: 'https://mysite.com/callback?ref=home&user=abc'”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/f/encoding.url-encodeWhen to prefer
Choose this endpoint when you need a simple, reliable, pay-per-call URL encoding utility without setting up a local library or dependency — particularly useful in serverless agent pipelines or environments where string utility functions are not available natively.
Side effects
- Missing 'input' field returns a validation error
- Very long strings may be truncated or rejected
- Non-string input types may cause a 400 error
- Network or payment gateway errors may return 402 or 5xx responses
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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