# PennyRail URL Extractor

> PennyRail URL Extractor 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).

Extracts and finds all URLs present within a given text string

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/text.extract-urls--find-urls
- 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-extractor-435300da
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BRF1D2BMwBkSuaqpdRxs6

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-extractor-435300da -d '<json body>'
```

Example prompt: Can you pull out all the URLs from this text for me: 'Check out our blog at https://example.com/blog and follow us on Twitter at https://twitter.com/example — also see the full report at https://reports.example.org/2024'?

## When to prefer this

Use this endpoint when you need a lightweight, pay-per-call URL extraction service that works on raw text without requiring a browser or HTML parser. Ideal for agents processing unstructured text, user-generated content, emails, or documents where links need to be identified programmatically at low cost.

## Known failure modes

- Input field missing or empty — request rejected with validation error
- No URLs present in the text — returns empty list
- Malformed or extremely long input may cause processing errors
- Service unavailable or payment not settled — 402 or 5xx response

## How this service works

Machine-readable settlement service

## Output

Returns a structured object containing the list of URLs found within the input text, extracted as discrete string values.

## 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-extractor-435300da/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)