Hi, the licence of addon “Nuxeo Edge Cache”, registered on Nuxeo Marketplace, is “Copyright 2015-2016 Nuxeo SA”, but I can't found more information about it, its a paid component? Can I use it without paying an Nuxeo subscription? Thanks

https://connect.nuxeo.com/nuxeo/site/marketplace/package/nuxeo-edge-cache?version=1.0.0