Complex sentence: The service is available and free for all Open Source projects that are licensed under one of nine licenses (Apache, Artistic, BSD, GPLv2, GPLv3, LGPL, MIT, MPL and EPL).
Split into simpler sentences: The service is available and free for all Open Source projects that are licensed under one of the allowed licenses (see below). The site allows the projects to use only one of nine licenses (Apache, Artistic, BSD, GPLv2, GPLv3, LGPL, MIT, MPL and EPL).