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Aside Blocks Attribute Presence Check
x402
Aside Blocks Attribute Presence Check is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Checks whether a specified HTML attribute (optionally with a given value) is present on aside elements in a webpage or supplied HTML snippet.
Price / call$0.01
Success—
StatusUnknown
How this service works
Aside blocks — Attribute presence check: Attribute presence check for Aside blocks. One public HTTPS page or supplied HTML; static parsing, no JavaScript rendering, login or access bypass. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded attribute presence check result.
Output
Returns a bounded attribute presence check result indicating whether the specified attribute (and optionally its value) exists on aside block elements found in the parsed HTML of the given URL or supplied HTML string.
Example use cases
CMS aside tag audit
“Can you check if the aside elements on https://myblog.com/article/intro have an id attribute present? I want to verify the HTML is structured correctly.”
SEO attribute validation
“Look at this HTML snippet and tell me if any aside block has a data-kind attribute set to 'promo': <!doctype html><html><body><aside data-kind="promo">Special offer</aside></body></html>”
Accessibility compliance check
“Parse https://docs.myproduct.com/guide and check whether aside blocks carry a role attribute — I need to confirm accessibility attributes are in place on the static page.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-bx-web-asides-attribute-presence?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, static-HTML-only check for attribute presence on aside HTML elements specifically — ideal for CI/CD pipelines, CMS audits, or accessibility checks where JavaScript rendering is unnecessary and cost must be minimal ($0.01 per call).
Side effects
- URL is unreachable or returns a non-200 HTTP status
- HTML exceeds the 100,000 character maximum
- Attribute name does not match required pattern (must start with a letter, max 50 chars)
- Term is empty or exceeds 100 characters
- No aside elements found in the document
- JavaScript-rendered content not reflected (static parsing only)
- Payment not processed, endpoint returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| html | string | |
| term | string | |
| attribute | string | |
| previous_texts | array | |
| attribute_value | string |
Tags
x402
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