Jason Judge

Allows access to custom meta fields on products through the API. 
In short, installing this plugin on your WooCommerce site, will extend the 
WooCommerce API so that custom metadata can be passed back and forth through 
that API.
See the main documentation here: https://github.com/judgej/wc-api-custom-meta

WC API Custom Meta

Awesome!

Allows access to custom meta fields on products through the API.

Sébastien Dumont

Sebs Studio

<blockquote>
Required to Work 
 This plugin requires the use of <a href="http://www.woothemes.com/products/software-add-on/" rel="nofollow ugc">WooCommerce Software Add-on</a>
</blockquote>
WooCommerce My Licences is a simple shortcode plugin that allows you to display the end-users licence keys in a table.
With WooCommerce Software Add-on, each software product the customer has purchased, a licence key is given but only via email when the order is completed. You also don’t have the option to deactivate your licence key. With this plugin, not only does the customer see all licence keys purchased but also lists which site or instant the licence has be activated on.
To use this shortcode, simply place the shortcode on page and any software your customers have purchased will have access to the licence keys once logged in on their account.
<h4>Features</h4>
<ul>
<li>Table listing all product licence keys. [ Product Name | Licence Key | Software Version | Activations | Licence Type ]</li>
<li>Each licence key will list activated sites or instants along with a deactivation button.</li>
<li>See how many activations the licence key has left.</li>
</ul>
<h4>Contributing and reporting bugs</h4>
You can contribute code to this plugin via GitHub: https://github.com/Sebs-Studio/WooCommerce-My-Licences and localizations via Transifex: https://www.transifex.com/projects/p/woocommerce-my-licences/
<h4>Support</h4>
Use the WordPress.org forums for <a href="https://wordpress.org/support/plugin/woocommerce-my-licences" rel="ugc">community support</a>. If you spot a bug, you can of course log it on <a href="https://github.com/Sebs-Studio/WooCommerce-My-Licences/issues" rel="nofollow ugc">Github</a> instead where I can act upon it more efficiently.
If you need help with customization. Please consider <a href="http://www.sebastiendumont.com/hire-me/" rel="nofollow ugc">hiring me</a> to apply your website’s customizations for this plugin.
Please also consider making a <a href="http://www.sebastiendumont.com/donation/" rel="nofollow ugc">donation</a> or <a href="https://wordpress.org/support/view/plugin-reviews/woocommerce-my-licences?rate=5#postform" rel="ugc">write a review</a>.
More information
<ul>
<li>Other <a href="https://profiles.wordpress.org/sebsstudio/" rel="nofollow ugc">WordPress plugins</a> by <a href="http://www.sebs-studio.com/" rel="nofollow ugc">Sebs Studio</a></li>
<li>Contact Sebastien on Twitter: <a href="http://twitter.com/sebsstudio" rel="nofollow ugc">@sebsstudio</a></li>
<li>If you’re a developer yourself, follow or contribute to the <a href="https://github.com/Sebs-Studio/WooCommerce-My-Licences" rel="nofollow ugc">WooCommerce My Licences plugin on GitHub</a></li>
</ul>

WooCommerce My Licences

Not working anymore, but I solved the problem and added my updated plugin woo-admin-licenses

Not working anymore

WooCommerce My Licences is a simple shortcode plugin that allows you to display the end-users licence keys in a table.

WC API Custom Meta vs WooCommerce My Licences