Okamoto Hidetaka

This is simple Widget Plugin using WP REST API. You can use following Widgets.
<ul>
<li>Comment form if comment is closed, this widget is hidden.</li>
<li>Comment List if comment is closed, this widget is hidden.</li>
<li>Post List Default: recentry 10 posts.</li>
</ul>

Rest API Widgets

jcdev518

This plugin adds “routes” or “endpoints” to WP REST API that allows for retrieval of 
menu data as JSON.
Updated port of “WP-REST-API V2 Menus” by Claudio La Barbera (http://www.claudiolabarbera.com)
Usage
Get all registered menus:
<pre><code>GET /wp-menus/v1/menus
https://yourwpsite.com/wp-json/wp-menus/v1/menus
</code></pre>
Get menu data as JSON from menu slug:
<pre><code>GET /wp-menus/v1/menus/{slug}
https://yourwpsite.com/wp-json/wp-menus/v1/menus/{slug}
</code></pre>
Gets the contents of a registered menu by its “slug”.
When assigning a menu a location in /wp-admin/nav-menus.php?action=locations 
the slug is the name of the menu in lowercase and without any spaces like a post slug.
If your menu name is Main Menu: 
https://yourwpsite.com/wp-json/menus/v1/wp-menus/main-menu

Rest API Widgets vs WP-REST-API Menus