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PennyRail URL Decode
x402
PennyRail URL Decode is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Decodes a percent-encoded (URL-encoded) string back to its original plaintext form
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
A JSON object containing the decoded (percent-unescaped) version of the input string, converting sequences like %20 to spaces and other encoded characters back to their original plaintext representation.
Example use cases
Decode encoded query parameter
“I pulled a query string from a request log and it's all percent-encoded — can you decode 'search%3Dblue%20shoes%26size%3D10' back to something readable?”
Unescape encoded form submission
“This form value came in URL-encoded: 'user%40example.com%2Fprofile%3Fref%3Dhome' — what does it actually say once decoded?”
Recover readable URL from encoded path
“I have a URL path that's been encoded and I need the original text: '%2Fdocs%2Fgetting-started%2Fquick%20guide' — please decode it for me.”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/encoding.url-decode--url-decodeWhen to prefer
Use this endpoint when you need a quick, pay-per-call URL decoding operation without setting up local libraries, or when operating in a sandboxed agent environment where calling a remote utility is preferable to executing code. Ideal for one-off decodes in automated pipelines that already use the x402 payment protocol.
Side effects
- Malformed percent-encoding sequences (e.g. truncated % sequences) may return an error or partial decode
- Non-string input will fail schema validation
- Payment not received or insufficient USDC balance will result in 402 rejection
- Empty string input may return an empty result or error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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