Does the sage Api work for south African Sage?

I need to integrate sage for a client into their web system. However I am extremely confused by how to set it up in a way that his clients can connect to sage through the system as the Api integration guide tells me to make a trial account and only a hand full of countries show up as an option.

We are based in south africa. I assume v3 of the api is not supported then but I hope i am wrong.

We would like to use the accounting api's to get stuff like

Chart of accounts

Trial balance


Any assistance would be appreciated