GCP Private Access Methods

[needlestack]

Hi Folks,

I was going through many docs on Google site about the private access methods available to connect to multiple API and services inside GCP and I found the following question to be valid based on what I read and found:

1) Do we have a single place that shows the services supported with each access method ? Just one place that says for example to connect to CloudSQL you can use the following options ?

2) The DOCs refer to Google API and Services in many places ? What is the real difference like for SQL we have CloudSQL service and we have CloudSQL admin API. For Storage we have Cloud Storage API and Cloud Storage Service.

Thanks.