heidelpay Heidelpay.Payment by: heidelpay .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 14,069 total downloads last updated 8/23/2019 Latest version: 2.0.2 heidelpay payment credit cards money sdk paypal eps giropay sofort More tags The Heidelpay .NET SDK provides an easy way to integrate payment functionality on your backend .NET application server.