Andrew MAGIK

This plugin will add separate WordPress REST API (v2) endpoint, with all relations between existing post types and attached to them terms (taxonomies). 
It is very useful when you need to create some filters, when you want to know what taxonomies are attached to the current post type.
For example what can you get, using <code>wp-json/wp/v2/post-type-taxonomies</code> request (empty results not included):
<pre><code>{
 post: [
 "category",
 "post_tag",
 "post_format"
 ],
 portfolio: [
 "technologies",
 "clients",
 "work_types"
 ]
}
</code></pre>
Check my other useful rest-api plugins: <a href="https://wordpress.org/plugins/tags/andrew-magik-rest-api" rel="ugc">https://wordpress.org/plugins/tags/andrew-magik-rest-api</a>.

WP REST API – Post Type Taxonomies

Very useful to know all attached taxonomies for post types. With this information you can create separate filters for specified post types.



Very useful to know all attached taxonomies for post types

This plugin show all relations between existing post types and attached to them terms (taxonomies) in separate WordPress REST API (v2) endpoint.

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

WP REST API – Post Type Taxonomies vs WP-REST-API Menus