Top 20 NuGet forex Packages

UDP Dumper. Console version
Transform financial market price data into technical analysis indicators such as MACD, Stochastic RSI, Average True Range, Parabolic SAR, and more.
QuantConnect LEAN Engine: Configuration Project - The Config and argument parser implementation
Trading and algorithmic trading platform (stock markets, forex, bitcoins and options). .NET API for InteractiveBrokers, GainCapital, OANDA, FIX/FAST, Binance etc. More info on web site https://stocksharp.com/products/api/
BitMax.Net is a .Net wrapper for the BitMax API. It includes all features the API provides, REST API and Websocket, using clear and readable objects including but not limited to Reading market info, placing and managing orders and reading balances and funds
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/
OEC API library encapsulates network communication between client application and OEC Servers and provided object-oriented access to OEC functionality through exposed components (objects), their properties, methods and events.
Library for Forex, Stock, etc trading. It has things like Fibonacci, PivotPoints...
Manage multiple brokers accounts from a single application. Implement reliable, legal and robust interface to any supported forex broker.
Manage account between friends
Official C# binding for mForex API
Official F# binding for mForex API
Official TypeScript binding for mForex API
.net port for ta4j; https://github.com/ta4j/ta4j providing technical analysis
StockSharp sample history data