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AgentShelf XPath-Mark Extractor
x402
AgentShelf XPath-Mark Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.007/call, status unknown (last checked 2026-10-02).
Extracts text content from a public web page or raw HTML using XPath //mark selectors, with SSRF protection.
Price / call$0.007
Success—
StatusUnknown
How this service works
Call when an agent needs text of //mark via //mark from a public page or HTML (SSRF-safe). Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/xpath-mark first.
Output
Returns the text content extracted from //mark XPath-matched elements found within the provided URL's page or the supplied HTML string.
Example use cases
Extract highlighted terms from article
“Go to https://docs.example.com/guide and pull out all the text that's highlighted — the stuff inside mark tags — I want to see what the authors emphasized.”
Parse mark annotations from raw HTML
“I have some raw HTML from a report — here it is — can you extract all the text that's wrapped in mark elements so I can see the annotated sections?”
Identify emphasized text for summarization
“Fetch https://research.example.org/paper and give me only the marked or highlighted text passages so I can quickly get the key takeaways without reading the whole thing.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/xpath-mark?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to extract specifically the content of HTML mark elements (highlighted/annotated text) from a public URL or raw HTML blob, and you want SSRF-safe fetching. Prefer the free sandbox endpoint /v1/sandbox/xpath-mark first for testing; switch to this paid endpoint ($0.007 USDC) for production or rate-limited scenarios.
Side effects
- URL is not publicly accessible or returns non-200 status
- HTML input exceeds 200,000 character limit
- URL flagged as SSRF risk (private/internal addresses blocked)
- No mark elements found in the document (empty result)
- Malformed HTML that cannot be parsed
- URL string too short (under 8 characters) or too long (over 2048 characters)
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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