Step - Step is an open-source two-dimensional physics simulation engine (KDE).
TrueLayer - Simple Bank APIs to access real-time financial data
N26 - The Mobile Bank
Plaid - Infrastructure that powers financial technology by enabling applications to connect with users' bank accounts.
Monese Business - Current accounts for freelancers & businesses 💳
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.