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ARIA Explicit Concrete Role Token Fallback Detector
x402
ARIA Explicit Concrete Role Token Fallback Detector is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-01).
Given a URL, determines which concrete ARIA source role survives the normative fallback order after removing explicit compatibility role tokens from a web page.
Price / call$0.003
Success—
StatusUnknown
How this service works
Before removing compatibility role tokens, a website migration agent needs which concrete source role survives the normative fallback order.
Output
Returns the concrete ARIA source role that survives the normative fallback order for the given URL after explicit compatibility role tokens are removed, allowing migration agents and accessibility engineers to confirm safe role token removal without breaking assistive technology support.
Example use cases
Pre-migration ARIA role audit
“I'm about to migrate my website and want to remove all the explicit ARIA compatibility role tokens — can you tell me which concrete source role would survive the normative fallback order for https://mysite.com/nav-section?”
Accessibility regression check
“Before we deploy our redesign, check https://staging.example.com/dashboard and tell me what concrete ARIA role an element falls back to after we strip the explicit compatibility role tokens, so we know nothing breaks for screen reader users.”
ARIA token cleanup validation
“We're cleaning up legacy ARIA markup on https://app.example.com/sidebar — can you determine which source role survives the normative fallback order once we remove the explicit role tokens, so our accessibility team can approve the change?”
Technical details
Endpoint
POSThttps://detect.halowerk.com/u/aria-explicit-concrete-role-token-fallback?utm_source=zero.xyzWhen to prefer
Use this endpoint when you are planning a website migration that involves removing explicit ARIA compatibility role tokens and need to know in advance which concrete source role will survive the normative WAI-ARIA fallback order. Prefer this over general accessibility checkers when you specifically need the role fallback resolution logic rather than a broad audit.
Side effects
- URL is unreachable or returns non-200 status — endpoint may return an error or empty result
- Page has no explicit ARIA role tokens — no fallback resolution needed, result may be null or indicate N/A
- URL points to a page with dynamic JavaScript-rendered ARIA roles that cannot be statically resolved
- Malformed or excessively long URL exceeds the 2048 character limit
- Page uses non-standard or proprietary ARIA extensions not covered by normative fallback rules
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string |
Tags
x402
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