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.

Coinbase Commerce - Accept BTC, ETH & other digital currencies in your business

ACH payments with Stripe - Accept bank payments with a few lines of code.

Coinomi - Free Secure Multi-Coin Multi-Asset HD Wallet for Bitcoin and Altcoins

TrueLayer - Simple Bank APIs to access real-time financial data

BitPay - Bitcoin payment gateway. Enterprise-grade solutions, from the pioneer of bitcoin payments.