Indicates that the resource is compatible with the referenced accessibility API.


Example 1 — EPUB 3
<meta property="schema:accessibilityAPI">ARIA</meta>
Example 2 — EPUB 2
<meta name="schema:accessibilityAPI" content="ARIA"/>
Example 3 — Audiobooks
"accessibilityAPI": ["ARIA"]
Example 4 — HTML with RDFa
<meta property="accessibilityAPI" content="ARIA"/>
Example 5 — HTML with microdata
<meta itemprop="accessibilityAPI" content="ARIA"/>


This property is generally not applicable to digital publications as the means by which information is conveyed to accessibility APIs is a reading system concern.

Only the following value is recommended for this property:



Possible switching of this value to an accessibility feature is currenty under discussion. See issue 14 for more information.

The ARIA value is used to indicate that ARIA roles, states and properties have been used to make scripted content accessible.

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