Some European alternatives you might be able to find/negotiate better fees with: - mollie (Netherlands) - adyen (Netherlands) - Klarna (Sweden) - Paylike (Denmark) - Mangopay (Luxembourg) - Quickpay (Denmark) (added in edit) The ones I've tried of those, have an OK development experience, maybe not as polished as Stripe, but much better than the alternatives that were around before Stripe (huge hassle back then). Ide…
Aren't there open source libraries available that abstract away the payment processor?
From memory they have legal obligation to open an API and give access, but no real penalty if it doesn't work or is utterly garbage or impractical.