At the center level, XML API and JSON API are there for the cloud storage on Google Cloud Platform. Yet, alongside these, there are following choices furnished by Google to collaborate with the cloud storage.
Google Cloud Platform Console, which performs fundamental tasks on objects and buckets
Cloud Storage Client Libraries, which give programming backing to different languages including Java, Ruby, and Python
GustilCommand-line Tool, which gives a command-line interface to the cloud storage.
There are numerous external libraries and tools, for example, Boto Library.
Hope it works!!
If you want to become a professional Google Cloud Architect, Its recommended to go for the certification course first.