Is it possible to discover additional Cloud specific attributes provided by CSPs?

Yes: Exivity - Your Universal Solution for Metering and Billing Across All Clouds and Providers.

Exivity is capable of acquiring cloud-specific attributes, which are subsequently normalized to align with a cloud-agnostic data schema within Exivity. This approach is applicable across various cloud environments, including public, private, and hybrid models. It encompasses, but is not limited to, platforms such as AWS, Azure (EA/CSP), GCP, Oracle, IBM, VMware, OpenStack, Kubernetes, and others.