Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Patreon - Patreon enables fans to give ongoing support to their favorite creators.
Bonsai - One platform to streamline your entire business
PayRequest - SImple Fast Payment Links
Payzo - Accept credit cards with zero coding (for freelancers)
PayRequest.me - Create your personal payment page