https://woocommerce.com/document/woocommerce-api-manager-php-library-for-plugins-and-themes/
WooCommerce API Manager PHP Library: Plugin Licensing SDK by Kestrel Documentation - WooCommerce
Jul 31, 2025 - The WooCommerce API Manager PHP Library makes it easy to add license key authentication and software updates to your WordPress plugin or theme. Drop it into...
woocommerce api managerphp library