Utilizing MindBody with Member Areas

My client uses MindBody with Wix for her transactions, specifically with access to a video subscription. We want to switch to Squarespace, but can MindBody be used instead of Squarespace's transactions when customers buy access to a member area?

I have a similar question, as to whether it's possible to have customers pay and their subscription managed in another platform such as Clickfunnels, but then given access to the member's area in Squarespace. Would it require a Zapier connection?