This PHP SDK provides integration access to the Gateway v2.2 API for PayU's payment service. It presents various methods of implementing online payments in e-shops via different PayU services including; notifications, cancelations, order data, and more. PayU is a Naspers-owned online and mobile payments company.
Stronghold has released a set of APIs that developers can use to add to apps a variety of payment instruments including Bitcoin, Ethereum, and Lumens. The APIs also allow apps to leverage Stronghold platform capabilities such as generate quotes, trade cryptocurrencies, and get available venues.