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AgentShelf CSS Link Href Extractor
x402
AgentShelf CSS Link Href Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-09-28).
Extracts all href attributes from <link> elements in a public web page or provided HTML, with SSRF protection.
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs link hrefs via link[href] from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/css-link-href first.
Output
A list of href attribute values from all <link> elements found in the fetched page or provided HTML, such as stylesheet URLs, preload hints, icon paths, and other linked resources.
Example use cases
Discover CSS stylesheets on a competitor site
“Go to https://stripe.com and pull out all the href values from its <link> elements — I want to see every CSS file and external resource they're loading.”
Audit linked resources in pasted HTML
“Here's some HTML I exported from our CMS — can you extract all the link[href] attributes from it so I can audit what stylesheets and resources it references?”
Check what fonts and icons a page loads
“Fetch https://fonts.google.com and extract all link hrefs so I can see which font and icon resources the page links to in its <head>.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/css-link-href?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need href values from <link> elements (stylesheets, preloads, icons, canonical URLs) rather than anchor hrefs or other page content. Prefer the free sandbox POST /v1/sandbox/css-link-href first if available; pay this endpoint only when the sandbox is unavailable or rate-limited. Choose this over anchor href extractors when you need linked resources rather than navigation links.
Side effects
- URL is private/internal (SSRF-blocked) — returns an error rejecting non-public addresses
- HTML string exceeds 200,000 character limit — request rejected
- URL string shorter than 8 characters or malformed — validation error
- Target page returns non-HTML content — may return empty list
- Page loads links dynamically via JavaScript — statically parsed hrefs only, dynamic links may be missed
- Payment of $0.009 USDC not provided — payment required error
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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