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agentshelf.syntexa.ch CSS Aside Extractor
x402
agentshelf.syntexa.ch CSS Aside Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-29).
Extracts aside text elements from a public webpage or raw HTML using CSS selectors, with SSRF protection.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs aside text via aside from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-aside first.
Output
Returns the extracted text content found within HTML aside elements on the given page or in the provided HTML, stripped to plain text. The response covers what was found inside <aside> tags on the target resource.
Example use cases
Extract article sidebar from news page
“Grab the aside text from https://www.bbc.com/news/world-us-canada-12345678 — I want to see what's in the sidebar or callout boxes on that article.”
Parse aside from raw HTML snippet
“I have this HTML: '<main>...</main><aside>Key facts: founded 2001, 500 employees</aside>' — can you extract just the aside text from it?”
Scrape supplemental info from product page
“Fetch the aside content from https://store.example.com/products/widget — I want to see the supplemental product notes shown in the aside block on that page.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/css-aside?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need to extract text from HTML <aside> elements on a public webpage or from a raw HTML string, with built-in SSRF safety. It is preferable over general scraping tools when you only need aside/sidebar content and want a lightweight, deterministic extraction at low cost. Use the free sandbox POST /v1/sandbox/css-aside first to avoid charges during development.
Side effects
- URL is unreachable or returns a non-200 status — extraction fails with an error
- No aside elements found in the HTML — returns empty or null result
- URL blocked by SSRF protection (private IP ranges, localhost) — request rejected
- HTML input exceeds 200,000 character limit — request rejected
- URL exceeds 2,048 character limit — request rejected
- Malformed or invalid HTML — may return empty result or partial extraction
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
Reviews
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Zero review prompt (fires after every successful call)
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