Top 20 NuGet bitcoin Packages

The C# Bitcoin Library
The C# Bitcoin Library
Library for querying data indexed by NBitcoin.Indexer on Azure Storage
Braintree Client Library
Base16, Base32, Base58, Base85 encoding/decoding library
A .NET implementation for the Coinbase API for online payments. The Coinbase API is a way to seamlessly pay for goods or services online utilizing Coinbase and Bitcoins for low-cost payment processing.
Client for Bitfinex and Ethfinex websocket API version 2.0
Client for Bitmex websocket API
An async-based CryptoCompare API client library for .NET and .NET Core
A cross platform library for communicating with the Satoshi Labs' Trezor Hardware Wallet Supports Android, UWP, .NET Core and .NET Framework with Hid.Net. Support for other platforms can be added with Hid.Net dependency injection
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/
The most complete, up-to-date, battle-tested library and RPC wrapper for Bitcoin, Litecoin, Dogecoin and other Bitcoin clones in .NET.
ExchangeSharp is a C# API for working with various cryptocurrency exchanges. Web sockets are also supported for some exchanges.
A .NET implementation of the Coinbase Commerce API for cryptocurrency payments. Coinbase Commerce is the easiest and safest way for a business to start accepting digital currency payments. Works with Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), and Bitcoin Cash (BCH)!
Client library for lightning network implementations to build Lightning Network Apps in C#.
A .NET implementation for the Coinbase Pro API for online trading. Supports REST API and Websocket Feed API. All crypto currencies including Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), 0x (ZRX), and many more!
Client API for the minimalist HD Wallet Tracker NBXplorer
A cross platform C# library for the Ledger hardwarewallet. To see the samples, please clone the repo at the project Url.
Non official .NET Bitpay API compatible client
Client library for LND to build Lightning Network Apps in C#.