Jeremy Pry

Allow Links from the Link Manager to be manipulated and retrieved using the REST API.
This plugin makes the following endpoints available:
<ul>
<li><code>/wp-json/wp/v2/links</code> – List details for all links, or create a new link.</li>
<li><code>/wp-json/wp/v2/links/<id></code> – List details for a particular link ID, update a link, or delete a link.</li>
</ul>
For more information about the REST API as a whole, refer to the <a href="https://wordpress.org/plugins/rest-api/" rel="ugc">REST API plugin</a>.
Note: This plugin requires the <a href="https://wordpress.org/plugins/rest-api/" rel="ugc">REST API plugin</a>.

REST API Link Manager

Enable REST API endpoints for Links in the Link Manager.

Sound Strategies

This plugin provides complete LinkMgr functionality including link listing, link submission, webmaster contact, and all other features supported by the Sound Strategies LinkMgr.net application
This plugin is intended ONLY for use with the Sound Strategies LinkMgr application (see http://linkmgr.net).
<h3>Advanced</h3>
This plugin can also generate the sitemap entries for the pages generated by LinkMgr. The tag <code></code> must be placed on the page where the site map needs to appear.

Soundst LinkMgr

Displays category and link information from the Sound Strategies LinkMgr application as on-page embedded content and as a widget.

REST API Link Manager vs Soundst LinkMgr