Product data returned now checks if product offer is eligible for Prime. This means the automatic link appended to the end of the post content will only show if the ASIN is valid and the product offer is eligible for Prime.
Developers can access the flag using the standard PHP key-value array syntax. For example:
<?php
$apai_product = zm_apai_get_product_by_asin('B00FOQR6LG');
$prime = $apai_product['isEligibleForPrime']; // will return TRUE or FALSE accordingly
?>