EnterMedia is a next generation, open source, Media Database platform. It is tailored to Web Developers and Media Teams. Full JSON API available.
The source code is available under a perpetual, transferable, LGPL license. Own your DAM unlimited customization and integration with third-party tools. Existing plug-ins for WordPress, Drupal, Joomla, Syncthing, Wowza, etc.
The JSON API provides the ability to create custom applications.