The JudoPay iOS Swift Sample Code by JudoPay presents API interaction to integrate payments. Available a getting started guide with setup and test sandbox payments.
Ripple provides blockchain payment technologies for banks, giving them more reliability, cost efficiency, and speed (transaction completion and recognition) that are infamous challenges within the banking industry. Its solutions enable banks to handle inter-bank transactions, liquidity and payments.
Handshake, sales order processing platform, offers the Handshake API that allows developers to integrate Handshake with third party applications and services. Handshake allows users to write, accept, and sync orders across any device or server running the Handshake platform. Additionally, Handshake supports barcode scanning for more streamlined order processing.