Wirize - Payment checkout for freelancers
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.
Atom Pay - Atom is the easiest way to get paid for what you do.
PayPal.Me - Request money using your own personalized URL.
Bonsai - One platform to streamline your entire business
Payzo - Accept credit cards with zero coding (for freelancers)