Podia is very much an all-in-one solution, including tools for building websites, selling courses/products, and hosting communities.
You can accept payments via Stripe and PayPal. Apple Pay and Google Pay are also accepted via Stripe:
How to accept payments in Podia
Buy button info:
Embeddable Buy Button for Selling Online Courses, Memberships, and Downloads
API info (only available on Earthquaker plan):
Advanced JavaScript tracking API
Payment plan info: