Top 20 NuGet finance Packages

Quandl importer module of Trady, a handy library for computing technical indicators, based on .NET Standard 2.0
Google finance importer module of Trady, a handy library for computing technical indicators, based on .NET Standard 2.0
Csv importer module of Trady, a handy library for computing technical indicators, based on .NET Standard 2.0
The assembly provides SDK for currencylayer.com API
Financial.Extensions defines essential classes and symbols for financial applications.
Implementation of the Finnhub API
OKX connector