The offical AWSEM-MD code is residing at the following GitHub repository: https://github.com/adavtyan/awsemmd.
It is implemented as an add-on package for LAMMPS Molecular Dynamics Simulator and distributed under GNU General Public License v3.0. Please see here for more information on the license terms.
An alternative implementation of AWSEM-MD in OpenMM can be found here: here.
Note that this implementation does not include the Helix term (helical hydrogen bonding potential) and is still being tested.