# AgentShelf XPath itemprop Extractor

> AgentShelf XPath itemprop Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).

Extracts text content of all HTML elements annotated with itemprop attributes (Schema.org microdata) from a public URL or raw HTML string, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-itemprop?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-xpath-itemprop-extractor-2ad0d2a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mzGGK0Z5qyoZjhbigrwoW

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-itemprop-extractor-2ad0d2a6 -d '<json body>'
```

Example prompt: Can you extract all the itemprop values from https://example.com/product/123 — I want to see the schema.org microdata that page is publishing?

## When to prefer this

Use this endpoint when you need to extract Schema.org microdata (itemprop attributes) from a public webpage or HTML string. It is purpose-built for this specific XPath query and includes SSRF protection, making it safer than a generic XPath executor. Prefer it over general-purpose scrapers when the goal is specifically microdata/structured-data extraction. Use the unpaid POST /v1/sandbox/xpath-itemprop first to test before paying.

## Known failure modes

- URL is unreachable or returns a non-200 status — extraction fails with an error
- SSRF protection blocks requests to private/internal IP ranges or localhost
- HTML exceeds 200,000 character limit — request rejected
- Page contains no itemprop-annotated elements — returns empty result
- Malformed or non-HTML content at URL — XPath parsing fails
- URL string shorter than 8 characters or longer than 2048 characters — validation error

## How this service works

Call when an agent needs text of elements with itemprop via //*[@itemprop] from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-itemprop first.

## Output

Returns the text content of all HTML elements matched by the XPath expression //*[@itemprop], typically as a list of name-value pairs where the name is the itemprop attribute value and the value is the element's text content, representing the page's Schema.org microdata markup.

## 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-itemprop-extractor-2ad0d2a6/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)