Ravi Shakya

Add to Menus provides a quick link in your WordPress Admin Bar to quickly add a menu item link for the post & page that you are viewing.
<h4>So you need to create a new post and a link in your menu to that post?</h4>
<blockquote>
This normally takes a lot of steps; creating the post, going back to the menu manager, creating a menu there, selecting the correct post, etc, etc.
With Add to Menus this is done easily and quickly: Simply create the post/page and save it first. Now, a new menu will be there on the admin bar, you can click on ‘Add to Menus’. Select the menu you want to link to and voila! You are done.
</blockquote>
<h4>Main Features ( Free Version )</h4>
<blockquote>
1. It supports post and pages only. 
2. Hide custom menu items based on user roles. 
3. It supports <a href="https://wpml.org/" rel="nofollow ugc">WPML</a>.
</blockquote>
<h4>Main Features ( Pro Version )</h4>
<blockquote>
Buy <a href="http://codecanyon.net/item/add-to-menus/15533312?ref=ravishakya" rel="nofollow ugc">Pro Version</a> for just $10
1. It supports post/pages/categories/custom post types. 
2. It supports <a href="https://wpml.org/" rel="nofollow ugc">WPML</a>. 
3. It supports <a href="https://wordpress.org/plugins/woocommerce/" rel="ugc">WooCommerce</a>. 
4. Integrated with <a href="http://codecanyon.net/item/ubermenu-sticky-menu-extension/3904845" rel="nofollow ugc">Ubermenu</a> and <a href="http://codecanyon.net/item/ubermenu-icons-extension/5557227" rel="nofollow ugc">Ubermenu Icons Extensions</a>. 
5. Hide custom menu items based on user roles.
</blockquote>

Add To Menus Lite

Add to Menus provides a quick link in your Wordpress Admin Bar to quickly add a menu item link for the post or page that you are viewing.

Austin

Fulvio Notarstefano

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.

Add To Menus Lite vs WP API Menus