# AgentShelf XPath PRE Text Extractor

> AgentShelf XPath PRE Text Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-09-29).

Extracts text content from <pre> elements via XPath on a public URL or raw HTML, SSRF-safe, for $0.009 USDC per call.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-pre?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-xpath-pre-text-extractor-2aea97ff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mxoQqdBUipZXrI1ZvLeyL

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 agentshelf-xpath-pre-text-extractor-2aea97ff -d '<json body>'
```

Example prompt: Can you extract all the preformatted text blocks (the <pre> tag contents) from this public page: https://example.com/docs/config?

## When to prefer this

Use this endpoint when you need to extract text specifically from <pre> HTML elements (code blocks, terminal output, configuration snippets) from a public URL or raw HTML string. Prefer the free sandbox version (/v1/sandbox/xpath-pre) for testing; use this paid endpoint when the sandbox is unavailable or production reliability is needed. Prefer over general-purpose scrapers when you specifically need preformatted text blocks.

## Known failure modes

- URL is not publicly accessible or returns a non-2xx status
- SSRF protection blocks private/internal IP ranges
- HTML input exceeds 200,000 character limit
- No <pre> elements found on the page (empty result)
- Malformed or unparseable HTML
- URL string shorter than 8 characters or longer than 2048 characters

## How this service works

Call when an agent needs text of //pre via //pre from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/xpath-pre first.

## Output

Returns the text content extracted from <pre> elements on the target page or HTML, as selected by XPath. The response contains the concatenated or structured text found within those preformatted blocks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 8,
   "description": "Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html."
  },
  "html": {
   "type": "string",
   "examples": [
    "<!doctype html><html lang=\"en\"><head><title>Hello</title>\n<meta name=\"description\" content=\"Desc\"><meta property=\"og:title\" content=\"OG\">\n<link rel=\"canonical\" href=\"https://example.com/\"><link rel=\"icon\" href=\"/favicon.ico\">\n</head><body><h1>Hello</h1><a href=\"https://example.com/a\">A</a></body></html>"
   ],
   "maxLength": 200000,
   "minLength": 1,
   "description": "HTML to extract from locally. Provide html or url. When both are set, html is used."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-xpath-pre-text-extractor-2aea97ff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)