Cloud providers nowadays usually have some sort of CLI clients. OpenStack comes with a full suite[1]. Google rolled out their own for Google Cloud[2]. And if th

Cloud providers nowadays usually have some sort of CLI clients. OpenStack comes with a full suite[1]. Google rolled out their own for Google Cloud[2]. And if there's nothing official, there are often tools built by users available for interacting with the API. Authentication is based on some sort of shared secret rather than keys though, yes. [1] http://docs.openstack.org/user-guide/content/ch_cli.html http://docs.openstack.org/user-guide/content/ch_cli.html [2] https://cloud.google.com/sdk/gcloud/ https://cloud.google.com/sdk/gcloud/