# PennyRail URL Normalizer

> PennyRail URL Normalizer 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).

Normalizes a URL string into a canonical, cleaned form by resolving inconsistencies in formatting, encoding, and structure

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/url.normalize--normalize-url
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-url-normalizer-b61dda7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6qXidMZOzVjU5tK4AgIPT

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability pennyrail-url-normalizer-b61dda7c -d '<json body>'
```

Example prompt: Can you normalize this URL for me — 'HTTP://Example.Com/foo/../bar?a=1&a=1#section' — and give me back the clean canonical version?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call URL normalization service without setting up your own parsing library. It is especially useful in agentic pipelines where URLs arrive from untrusted or inconsistent sources and need to be canonicalized before storage, comparison, or deduplication.

## Known failure modes

- Invalid or unparseable input string returns an error response
- Empty input string may return a validation error
- Non-URL strings passed as input may fail parsing
- Relative URLs without a base may not resolve correctly

## How this service works

Machine-readable settlement service

## Output

Returns a JSON object containing the normalized, canonical form of the input URL with encoding fixed, redundant components removed, and structure standardized.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-url-normalizer-b61dda7c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)