# agentshelf.syntexa.ch XPath aria-label Extractor

> agentshelf.syntexa.ch XPath aria-label Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-02).

Extracts the text content of all elements with aria-label attributes from a public web page or raw HTML using the XPath expression //*[@aria-label]

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/xpath-aria-label?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-xpath-aria-label-extractor-9ed3412f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W3OAa9YU7GD1yYOB7ADNx

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-syntexa-ch-xpath-aria-label-extractor-9ed3412f -d '<json body>'
```

Example prompt: Can you pull out all the aria-label texts from https://example.com — I want to see every element that has an aria-label attribute on that page.

## When to prefer this

Use this endpoint when you specifically need to extract the text of aria-label attributes from a page or HTML fragment via XPath. It is SSRF-safe for public URLs and accepts raw HTML input, making it suitable for both live page scraping and offline HTML analysis. Prefer the free sandbox endpoint /v1/sandbox/xpath-aria-label first; use this paid endpoint when the sandbox is unavailable or rate-limited.

## Known failure modes

- URL is not publicly accessible or returns a non-200 status — extraction fails
- URL points to an internal/private host blocked by SSRF protection — request rejected
- HTML input exceeds 200,000 character limit — request rejected
- No elements with aria-label attributes found — returns empty result
- Malformed HTML that cannot be parsed — may return empty or partial results
- 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 aria-label via //*[@aria-label] from a public page or HTML (SSRF-safe). Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/xpath-aria-label first.

## Output

A list of text values (and/or element context) for every DOM element matching //*[@aria-label] found in the provided URL's page or supplied HTML, effectively extracting all accessibility label text present in the document.

## 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-syntexa-ch-xpath-aria-label-extractor-9ed3412f/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)