Shawn

This plugin integrates JWT authentication and automates user creation. The plugin is written for AAF Rapid Connect, but can be used for other providers too.
Here is how this plugin works:
<ol>
<li>Generate a secrete key with command: tr -dc ‘[[:alnum:][:punct:]]’ < /dev/urandom | head -c32 ;echo</li>
<li>Register the key and call back URL http://yoursite.com/wp-json/jwt-auth/v1/callback with your authentication provider.</li>
<li>Specify authentication and user creation parameters. Those marked with * are required.</li>
</ol>

JWT Authenticator

This plugin integrates JWT authentication and automates user creation.

egany

An awesome WordPress plugin to extend the WordPress APIs like Menu, Featured/Thumb Images, JWT Authentication & caching…
All the API is tested and used in the apps of EGANY, you can take a look at 
* <a href="https://codecanyon.net/user/egany_com/portfolio" title="EGANY.COM" rel="nofollow ugc">EGANY apps</a> 
* <a href="https://codecanyon.net/item/gikapp-react-native-full-application/19465924" title="gikApp - React Native Mobile App For WordPress" rel="nofollow ugc">gikApp – React Native Mobile App For WordPress</a> 
* <a href="https://codecanyon.net/item/qribto-the-react-native-app-for-crypto-currency-news-site/22462364" title="Qribto - The React Native App For Crypto Currency News Site" rel="nofollow ugc">Qribto – The React Native App For Crypto Currency News Site</a>
FEATURES:
<ul>
<li>Menus WP API: Adding menus endpoints on WP REST API / Extends WordPress WP REST API with new routes pointing to WordPress menus.</li>
<li>Better REST API Featured Images: Adds a top-level field with featured image data including available sizes and URLs to the post object returned by the REST API.</li>
<li>User WP API: Adding user endpoints on WP REST API. If you wish to Register User or Retrieve Password using REST API, without exposing Administrator credentials to the Front End application, you are at the right place. Since WordPress 4.7, REST API was natively included in WordPress.</li>
<li>Caching WP API: FileStorage, MemoryStorage</li>
<li>Authentication: auth by account and by JWT</li>
</ul>

Ultimate WP REST API

Very useful

An awesome WordPress plugin to extend the WordPress APIs like Menu, Featured/Thumb Images, JWT Authentication & caching...

JWT Authenticator vs Ultimate WP REST API