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AgentShelf XPath Query Extractor
x402
AgentShelf XPath Query 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 from a public web page or raw HTML using an XPath query, with SSRF protection.
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs text of //q via //q from a public page or HTML (SSRF-safe). Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/xpath-q first.
Output
Returns the text content matched by the XPath query applied to either the fetched public URL or the provided raw HTML string. The response contains the extracted text node(s) matching the XPath expression.
Example use cases
Extract product price from retailer page
“Grab the price text from https://shop.example.com/product/widget-pro using the XPath //span[@id='product-price'] — just the raw text value.”
Pull event date from conference site
“From https://conference.example.org/schedule, use XPath //div[@class='event-date'] to get me the text of the first event date listed.”
Scrape author name from blog post
“I have this HTML from a blog post — can you run XPath //span[@class='author-name'] on it and return the author's name text?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/xpath-q?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract a specific piece of text from a public web page or raw HTML using a precise XPath selector, and you want SSRF-safe server-side fetching without managing a browser or HTTP client. Prefer the free sandbox endpoint /v1/sandbox/xpath-q first for testing; use this paid endpoint for production queries. Ideal when you already know the XPath pattern targeting the data you need.
Side effects
- Invalid or unreachable URL returns an error response
- XPath expression matches no nodes — returns empty result
- Malformed XPath syntax causes a parsing error
- HTML too large (over 200,000 characters) is rejected
- URL is blocked by SSRF protection (private/internal IPs rejected)
- Payment of exactly $0.006 USDC not provided results in 402 response
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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