BTCPay Server - A free and open source server for merchants wanting to accept Bitcoin for their business.
TrueLayer - Simple Bank APIs to access real-time financial data
CoinGate - CoinGate is a payment gateway for Bitcoin, XRP, Litecoin, Ethereum and 50 other cryptocurrencies.
Teller API - A single API to connect your app with any bank's account
Bitcoin Volatility - Silicon Valley's Bitcoin price alerts for everyone 🤑
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.