Can you sync the Appointments & Calendar for 2 sites

Hey there, I’m intrested is it possible to create 2 sites and sync the calendar on both sites to work from the same amazing Google Calendar.

Then clients could reserve time from these both websites and it would work from the same calendar.

Let’s say you have 2 separate sites.

1. For telling about you and your services and there is a “Book an appointment” option.

2. Another one witch offers example e-store stuff and there is an appointment option also.

Please share your thoughts about this.. I would be really intrested.. The usage case would be have 20 providers in a “directory” site then they could also use the same plugin on their site and handle the booking from the same calendar.

Is it possible to get the API to work separetly from 2 or more sites?