I think that anyone with access to edit games in a group should also be able to access the API services. I don’t see why this is not currently the case, as someone having edit permissions for a group’s games already has a lot of power.
It is very inconvenient for development, as not having API access will lead to critical errors when doing certain things, such as: HTTP 400 and 403 request errors when using group and DataStore APIs in a Local Server only
If you can’t outright disable it for everyone, please add in some way for this limiting behaviour to be disabled manually.