Amos Lee（一刀）

<h4>For English user</h4>
Display sub-pages or of current parent page; display sub-terms of current taxonomy terms belongs to the same post type in sidebar。
Note：This plugin require php 5.4+, recommend use php 5.6
<ul>
<li>在侧边栏显示某个页面子页面，或同一个父级页面的同级页面列表</li>
<li>或隶属于某个文章类型下面的自定义分类项目列表。</li>
</ul>
注意：插件需要需要 PHP 5.4 以上的版本才能运行，建议使用 PHP 5.6

Wizhi Submenus

Display page`s subpage and taxonomy terms belongs to a post type in sidebar，在侧边栏显示某个页面的子页面列表或隶属于某个文章类型下面的自定义分类项目列表。

Fulvio Notarstefano

Austin

This plugin extends the <a href="https://wordpress.org/plugins/json-rest-api/" rel="ugc">WordPress JSON REST API</a> with new routes for WordPress registered menus
The new routes available will be:
<ul>
<li><code>/menus</code> list of every registered menu.</li>
<li><code>/menus/<id></code> data for a specific menu.</li>
<li><code>/menu-locations</code> list of all registered theme locations.</li>
<li><code>/menu-locations/<location></code> data for menu in specified menu in theme location.</li>
</ul>
Currently, the <code>menu-locations/<location></code> route for individual menus will return a tree with full menu hierarchy, with correct menu item order and listing children for each menu item. The <code>menus/<id></code> route will output menu details and a flat array of menu items. Item order or if each item has a parent will be indicated in each item attributes, but this route won’t output items as a tree.
You can alter the data arrangement of each individual menu items and children using the filter hook <code>json_menus_format_menu_item</code>.
An important note on WP API V2:
In V1 the routes are located by default at <code>wp-json/menus/</code> etc.
In V2 the routes by default are at <code>wp-json/wp-api-menus/v2/</code> (e.g. <code>wp-json/wp-api-menus/v2/menus/</code>, etc.) since V2 encourages prefixing and version namespacing.

WP API Menus

It Does!

Extends WordPress WP REST API with new routes pointing to WordPress menus.

Wizhi Submenus vs WP API Menus