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AgentShelf XPath Label Extractor
x402
AgentShelf XPath Label Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Extracts text content of elements matched by an XPath //label selector from a public URL or raw HTML, with SSRF protection.
Price / call$0.001
Success—
StatusUnknown
How this service works
Call when an agent needs text of //label via //label from a public page or HTML (SSRF-safe). Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/xpath-label first.
Output
Returns the text content of all elements matching the XPath //label selector found in the provided URL's page or raw HTML string, SSRF-safe.
Example use cases
Extract form field labels from signup page
“Pull out all the label texts from https://example.com/register so I can see what fields the form is asking for.”
Parse labels from raw HTML snippet
“Here's some HTML I copied from a website — can you extract all the label element texts from it using XPath?”
Audit accessibility labels on a public page
“Grab all the label elements from https://shop.example.com/checkout so I can check whether all form inputs have descriptive labels.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/xpath-label?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to specifically extract //label elements from a public webpage or raw HTML snippet, especially when you need SSRF protection built in. Prefer the free sandbox POST /v1/sandbox/xpath-label endpoint first if available; use this paid endpoint when the sandbox is unavailable or rate-limited.
Side effects
- URL is not publicly accessible or returns non-200 response
- URL points to a non-HTML resource (e.g. PDF, image)
- HTML input exceeds 200,000 character limit
- No //label elements found in the document (empty result)
- SSRF protection blocks internal/private IP addresses
- Malformed URL rejected due to minLength/maxLength constraints
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html. |
| html | string | HTML to extract from locally. Provide html or url. When both are set, html is used. |
Tags
x402
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