If it's just keeping track of the users and who has access, I built https://roleup.io to solve that problem. And I'd be super interested to know which 60 services you use.
Beyond shilling my service, I'm not sure that there is a good way to coordinate data between these services. I know from building it that even something as relatively homogeneous as user data can have an enormous variability between services. Going to the next level and trying to sync application data seems like it would be basically impossible.
On top of that, most of these services explicitly forbid the syncing of application data out of their service in their TOS. Facebook is a great example, they want to trap your data.
Beyond shilling my service, I'm not sure that there is a good way to coordinate data between these services. I know from building it that even something as relatively homogeneous as user data can have an enormous variability between services. Going to the next level and trying to sync application data seems like it would be basically impossible.
On top of that, most of these services explicitly forbid the syncing of application data out of their service in their TOS. Facebook is a great example, they want to trap your data.
Data freedom is becoming a large issue in SaaS services of all kinds. See Adversarial Interoperability for more info: https://www.eff.org/deeplinks/2019/10/adversarial-interopera...