Top 20 NuGet bitstamp Packages
ExchangeSharp is a C# API for working with various cryptocurrency exchanges. Web sockets are also supported for some exchanges.
Trading and algorithmic trading platform (stock markets, forex, bitcoins and options). .NET wrapper for InteractiveBrokers, GainCapital, IQFeed, Oanda, FIX/FAST, QUIK etc. More info on web site https://stocksharp.com/products/api/