NBitcoin

NBitcoin is the most complete Bitcoin library for the .NET platform. It implements all most relevant Bitcoin Improvement Proposals (BIPs). It also provides low level access to Bitcoin primitives so you can easily build your application on top of it. Join us in our gitter chat room. It works on Windows, Mac and Linux with Xamarin, Unity, .NET Core or CLR. (Porting to Unity should not be that hard if you need it)

The best documentation available is our eBook, and the excellent unit tests. There are also some more resources below.

You can also browse the API easily through the API reference.

How to use ?

With NuGet :

Install-Package NBitcoin

Go on the NuGet website for more information.

The packages supports:

With full features: Windows Desktop applications, Mono Desktop applications and platforms supported by .NET Standard 1.3 (.NET Core, Xamarin IOS, Xamarin Android, UWP and more).
With limited features: Platforms supported by .NET Standard 1.1 (Windows Phone, Windows 8.0 apps).

To compile it by yourself, you can git clone, open the project and hit the compile button in Visual Studio. How to get started ? Check out this article on CodeProject for some basic Bitcoin operations, or this Introduction to NBitcoin video.

How to use with Altcoins ?

Install-Package NBitcoin.Altcoins

Find more information here.

How to use with my own blockchain?

Find more information here.

How to use in Unity 3.5

In command prompt:

git clone https://github.com/MetacoSA/NBitcoin/
cd NBitcoin
git checkout unity35
build-unity.bat

Then put the two libraries NBitcoin.dll and System.Threading.Tasks.Net35.dll found in "NBitcoin\NBitcoin\bin\Release" into your asset folder.

How to use in .NET Core

If you want to use .NET Core, first install .NET Core as documented here.

Then:

mkdir MyProject
cd MyProject
dotnet new console
dotnet add package NBitcoin
dotnet restore

Then edit your Program.cs:

using System;
using NBitcoin;

namespace _125350929
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World! " + new Key().GetWif(Network.Main));
        }
    }
}

You can then run with

dotnet run

We advise you to use Visual Studio Code as the editor for your project.

Description

NBitcoin notably includes:

A TransactionBuilder supporting Stealth, Open Asset, and all standard transactions
Full script evaluation and parsing
A RPC Client
A Rest Client
A SPV Wallet implementation with sample
The parsing of standard scripts and creation of custom ones
The serialization of blocks, transactions and scripts
The signing and verification with private keys (with support for compact signatures) for proving ownership
Bloom filters and partial merkle trees
Segregated Witness (BIP 141, BIP 143, BIP 144)
Bech32 segwit address implementation with error detection BIP 173
Mnemonic code for generating deterministic keys (BIP 39), credits to Thasshiznets
Hierarchical Deterministic Wallets (BIP 32)
Payment Protocol (BIP 70)
Payment URLs (BIP 21,BIP 72)
Two-Factor keys (BIP 38)
Stealth Addresses (Also on codeproject)

NBitcoin is inspired by Bitcoin Core code but provides a simpler object oriented API (e.g., new Key().PubKey.Address.ToString() to generate a key and get the associated address). It relies on the BouncyCastle cryptography library instead of OpenSSL, yet replicates OpenSSL bugs to guarantee compatibility. NBitcoin also ports the integrality of Bitcoin Core unit tests with their original data in order to validate the compatibility of the two implementations.

NBitcoin is licensed under the MIT License and we encourage you to use it to explore, learn, debug, play, share and create software for Bitcoin and with other Metaco services.

Some OSS projects using NBitcoin

Wasabi: Privacy focused, ZeroLink compliant Bitcoin wallet.
StratisBitcoinFullNode: Bitcoin full node in C# https://stratisplatform.com
Breeze: Breeze Wallet, the first full-block SPV bitcoin wallet
BlockExplorer: A set of projects that can index and query stratis blockchains on the fullnode.
BTCPay Server: A cross platform, self-hosted server compatible with Bitpay API
NTumbleBit: TumbleBit Implementation in .NET Core
BitPoker: Decentralised peer to peer poker, using bitcoin http://www.bitpoker.io
Zen-Wallet: Node and GUI for the Zen Protocol. https://www.zenprotocol.com
Metaco-Trader: Bitcoin Wallet for advanced user based on a NBitcoin.Server
Swarmops: Admin backend for any bitcoin-native or swarm organization http://sandbox.swarmops.com/
Nako: A Bitcoin and Altcoin server api that indexes blockchain transactions and addresses
NBXplorer: A minimalist UTXO tracker for HD Wallets with bitcoin based altcoin support
UnitCurrency: UnitCoin - a hybrid scrypt PoW + PoS based cryptocurrency.
Openchain: Openchain node reference implementation. https://www.openchain.org/
BreezeProject: Breeze Masternode and Wallet with Breeze Privacy Protocol
Geewallet: a minimalistic and pragmatist lightweight wallet for people that want to hold the most important cryptocurrencies in the same application without hassle

Useful doc :

Ebook Programming The Blockchain in C#
NBitcoin Github : https://github.com/NicolasDorier/NBitcoin
NBitcoin Nuget : https://www.nuget.org/packages/NBitcoin/
Intro: http://www.codeproject.com/Articles/768412/NBitcoin-The-most-complete-Bitcoin-port-Part-Crypt
Stealth Payment, and BIP38 : http://www.codeproject.com/Articles/775226/NBitcoin-Cryptography-Part
How to build transaction : http://www.codeproject.com/Articles/835098/NBitcoin-Build-Them-All
Using the NBitcoin Indexer : http://www.codeproject.com/Articles/819567/NBitcoin-Indexer-A-scalable-and-fault-tolerant-blo
How to Scan the blockchain : http://www.codeproject.com/Articles/784519/NBitcoin-How-to-scan-the-Blockchain (You can dismiss the ScanState for that, now I concentrate on the indexer)

Please, use github issues for questions or feedback. For confidential requests or specific demands, contact us on Metaco support.

Useful link for a free IDE :

Visual Studio Community Edition : https://www.visualstudio.com/products/visual-studio-community-vs

License

aistrych/NBitcoin

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