Is there a way to automatically create Versions? E.g. via command line?

I am trying to migrate a project from redmine to OpenProject, using the REST API v3. According to the documentation there is no way yet to create Versions using the API.

Is that correct?

Is there another way to automatically create Versions? E.g. by using the command line or automatically creating entries in the database?

I am using the debian based installation, OpenProject 7.2.3 (Mysql2)