Autodesk VAULT access through API

Looking into retrieving from Autodesk vault information through an API, but cannot find any good documentation to do this.
And when I read this reply (Interconnecting autodesk forge and Vault api) there is no webservice API, like the forge. But that reply was years ago, so hopefully this is outdated.

I browsed through a lot of Autodesk documentation and github code, but where Forge is pretty well documented I cannot find the same level of documentation for Vault.

Concrete question is how to connect to the Vault through means of an webservice API client?