WordPress 4.7.2 https://wordpress.org/plugins/disable-json-api/ https://gist.github.com/naomicbush/1e730e2e3c2467681ab657a188006480 https://deliciousbrains.com/comparing-wordpress-rest-api-performance-admin-ajax-php/ http://v2.wp-api.org/ Basic Authentication: https://github.com/WP-API/Basic-Auth admin-ajax -> REST API endpoint show_in_rest => true other plugins e.g. https://github.com/gravityplus/gravityplus-events-calendar-rest