ACF attachment custom field in rest response

Check out ACF to REST API – https://github.com/airesvsg/acf-to-rest-api You can optionally turn on/off which fields you want to enable. // Enable the option show in rest add_filter( ‘acf/rest_api/field_settings/show_in_rest’, ‘__return_true’ ); // Enable the option edit in rest add_filter( ‘acf/rest_api/field_settings/edit_in_rest’, ‘__return_true’ );