
Pay-by-bank payments APIs
stronghold.co (opens in a new tab)Stronghold provides developer APIs for embedded payments and financial services, centred on pay-by-bank rather than card rails. Its SHx token forms part of the surrounding ecosystem, supporting merchant rewards, DeFi-based financing and governance, which ties the incentive layer to the payment infrastructure rather than bolting it on. Its purpose is to make financial services fast, secure and accessible to everyone, and works as a data-driven team with compliance and scalability treated as constraints on how fast it can move, which is the usual tension for anyone building payment rails outside the card networks.