What if you just need a page (the page can be external to your own site) that accepts payment and emails you a receipt, and you don't want to write any server-side code? Can Stripe do that the way PayPal can?
Alternatively you have always solutions like https://gumroad.com/ or https://simplegoods.co/ of which you can see a real world implementation here: http://foundersgrid.com/sponsor (No affiliation with any of these, just found it the other day.)