ogulcan

If you ever used WP Rest API, you should have noticed that there are lots of fields that even your client does not need. It makes no sense to load all fields for simple list or even single post view.
This plugin aims to remove redundant fields on Rest API. For now, it’s only available for posts.
<h4>Features</h4>
There are two endpoints: “compact” and “detailed.
<ul>
<li>“Compact” is useful for listing posts and Detailed is better for single post view.</li>
<li>First image of featured media will be added as ‘image’ on detailed and compact.</li>
<li>Modified was used as default date.</li>
<li>Requires at least WordPress 4.7</li>
</ul>

Filter WP Api

A wordpress plugin that clears huge fields of WP Rest API.

redcastor

Speed up wordpress rest api by filter loaded plugin for every route. 
On each rest api request wordpress load every plugins, this is a bottleneck and the rest api slow down. 
This plugin install a must use plugin for filter plugins before load to set only desired plugins load by route. 
The must use plugin is uninstall on desactivate the rest-manager plugin.
Features:
<ul>
<li>Disbale selected rest route.</li>
<li>Filter plugins load by rest route.</li>
</ul>

Rest Manager

Manage all rest api route. Disable or filter plugins loaded on request rest api.

Filter WP Api vs Rest Manager