ACF to WP-API is a useful utility for WordPress users that integrates Advanced Custom Fields (ACF) with the WordPress REST API. This plugin ensures that all ACF fields from various content types—such as posts, pages, custom post types, comments, attachments, and taxonomy terms—are included in the API output. It adds these fields under the ‘acf’ key, facilitating easier access to custom data in a structured format.

Additionally, the plugin creates a new '/option' endpoint, which is beneficial for developers utilizing the ACF Options Page plugin. This feature allows for seamless retrieval of option fields, enhancing the functionality of the WordPress site. With its straightforward integration and free license, ACF to WP-API is an essential tool for developers looking to extend the capabilities of the WordPress REST API.