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AgentShelf CSS Role Extractor
x402
AgentShelf CSS Role 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 CSS [role] attribute values from a public webpage or raw HTML string, with SSRF protection.
Price / call$0.008
Success—
StatusUnknown
How this service works
Call when an agent needs role values via [role] from a public page or HTML (SSRF-safe). Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/css-role first.
Output
Returns the extracted [role] attribute values found in the provided URL or raw HTML content, enabling agents to inspect ARIA/CSS role usage on a page.
Example use cases
Accessibility audit of a live page
“Check https://myapp.io/home and pull out all the role attribute values so I can audit whether the page uses proper ARIA roles.”
Role extraction from pasted HTML
“Here's some HTML I copied from a site — can you extract all the [role] values from it and list them for me?”
Automated role inventory for QA pipeline
“Scan https://staging.myproduct.com/checkout and give me every CSS role attribute you find in the page, so I can verify our QA checklist.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/css-role?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to extract CSS [role] attribute values from a public web page or raw HTML and want SSRF-safe fetching built in. Prefer the free sandbox POST /v1/sandbox/css-role when available; fall back to this paid endpoint ($0.008 USDC) when the sandbox is unavailable or rate-limited.
Side effects
- URL is unreachable or returns non-200 status — fetch fails
- URL points to an internal/private IP (SSRF block) — request rejected
- HTML input exceeds 200,000 character limit — validation error
- No role attributes found in the document — empty result
- Malformed URL or HTML input — parsing error
- Payment not provided or insufficient — 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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