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.

Google Payment API - Enable an easy-to-use checkout experience for customers

MangoPay - End-to-end technology for marketplaces and crowdfunding

Giftbit Payment API - Stripe for gift cards

BlueSnap - BlueSnap is a global payment service provider powering the checkout process for eCommerce merchants...

Open Banking API Tracker - Tracking +130 open banking and PSD2 APIs