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AgentShelf XPath Main Content Extractor
x402
AgentShelf XPath Main Content Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-29).
Extracts the text content of the main element (//main) from a public web page or provided HTML using XPath, with SSRF protection.
Price / call$0.005
Success—
StatusUnknown
How this service works
Call when an agent needs text of //main via //main from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/xpath-main first.
Output
Returns the extracted text content of the //main element found on the target page or within the provided HTML. If the page was fetched via URL, the response reflects the final resolved URL after any redirects.
Example use cases
Article body extraction for summarization
“Pull out the main content text from https://news.example.com/2024/top-story so I can summarize it.”
Main content from local HTML snippet
“I have some HTML I scraped earlier — can you extract just the text inside the main element from it?”
Content quality check on a landing page
“Fetch the main section text from https://mysite.com/landing-page so I can check what content visitors actually see.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/xpath-main?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need the text content of the semantic <main> HTML element from a page, rather than a full markdown conversion or all link/href attributes. It is ideal when you want structured XPath-based extraction that is predictable and SSRF-safe, and when you have either a public URL or a raw HTML string to parse. Prefer the free sandbox POST /v1/sandbox/xpath-main first to test; use this paid endpoint for production use.
Side effects
- No //main element found in the HTML — returns empty or null result
- URL is unreachable or returns non-200 status — fetch error
- SSRF-blocked URL (private IP range, localhost) — rejected for safety
- HTML input exceeds 200,000 character limit — validation error
- URL shorter than 8 characters or longer than 2048 characters — validation error
- Payment of $0.005 USDC not provided — 402 Payment Required
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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