Our team (me and other 2 engineers) bootstrapped the next generation on boarding APIs for PayPal for Partners: https://www.paypal.com/us/webapps/mpp/paypal-for-partners
With a single integration, PayPal for Partners provides a global, integrated payment solution with built-in Risk and Compliance compatibility to help merchants accepting credit cards, debit cards and PayPal on their websites and apps.
The platform is engineered to offer a seamless and flexible onboarding experience that allows merchants to get up and running in no time. From one setup, partners have control over their connected merchants and can easily add currencies, payment methods, and advanced features.