Make

This plugin enhances WordPress REST API v2 responses about metadata.

REST API Custom Fields

This plugin enhances Wordpress REST API v2 responses about metadata

Eric Stout

A WordPress plugin that serves up slimmer WP Rest API endpoints, with some great 
enhancements like ACF fields, WordPress menu endpoints, and more. You can 
view the full documentation and features <a href="https://github.com/factor1/better-rest-endpoints" rel="nofollow ugc">here</a>.

Better Rest Endpoints

A WordPress plugin that serves up slimmer WP Rest API endpoints.

REST API Custom Fields vs Better Rest Endpoints