The WooCommerce Legacy REST API plugin provides essential functionality for users of WooCommerce version 9.0 and later, reinstating the full capabilities of the previously removed Legacy REST API. This plugin ensures that all endpoints function as intended, allowing existing user keys to remain operational. It acts as a bridge for those transitioning from earlier versions, maintaining seamless integration with WooCommerce’s shopping features.

Additionally, the plugin is designed to coexist safely with WooCommerce 8.9 and older versions, automatically disabling itself to prevent conflicts. Users should be aware that the Legacy REST API does not work with High-Performance Order Storage, and it is advisable to upgrade any dependent code to leverage the current WooCommerce REST API for enhanced performance and compatibility.