Payment Rails Payout API - Send business payments to any country in any currency.

Square Register - A fully integrated point of sale (POS) system 💰

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.

RoyalPOS - Point of sale system for restaurants & retail stores

Stripe Elements - Beautiful, smart checkout flows 💳💸

Stripe Terminal - The programmable point-of-sale solution 💳🛠️