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Textarea Attribute Presence Check
x402
Textarea 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 2026-10-11).
Checks whether a specific HTML attribute (optionally with a given value) is present on textarea elements matching a search term in a web page or supplied HTML.
Price / call$0.01
Success—
StatusUnknown
How this service works
Textarea defaults — Attribute presence check: Attribute presence check for Textarea defaults. 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 a specific attribute value) is present on textarea elements matching the given search term, parsed statically from the provided URL or HTML without JavaScript rendering.
Example use cases
Accessibility attribute audit on contact form
“Can you check if the textarea on https://mysite.com/contact has an 'aria-label' attribute? The textarea is related to the term 'message' — I need to know if that accessibility attribute is present.”
Verify custom data attribute in supplied HTML
“I have this HTML snippet with a textarea that should have a 'data-kind' attribute set to 'feedback'. Can you check if that attribute and value are actually present on the textarea tagged with the term 'feedback'?”
QA check for textarea id attribute before deployment
“Before we deploy, can you parse https://staging.app.com/form and confirm that the textarea associated with 'comment' actually has an 'id' attribute with the value 'comment-box'?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-bx-web-textareas-attribute-presence?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, low-cost static check to confirm whether a specific HTML attribute exists (or has a specific value) on a textarea element in a public page or known HTML snippet, without needing full JavaScript rendering or dynamic content. Ideal for accessibility audits, form QA pipelines, and CI checks where you only need a boolean presence result rather than full DOM traversal.
Side effects
- URL is unreachable or returns a non-200 HTTP status
- HTML exceeds 100,000 character limit
- Attribute name fails the pattern validation (must start with a letter, max 50 chars)
- No textarea elements found matching the search term
- Term is empty or missing (minLength 1 required)
- Malformed HTML provided that cannot be statically parsed
- Both url and html are empty or omitted
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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