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If I want to create a client only, C# desktop application, what are my options for working with Bitcoin?

  • I could try to port BitcoinJ, which seems like a lot of overhead in terms of initial effort and keeping the project up to date.
  • I could try to create a local Bitcoin process which runs a tiny BitcoinJ-based server, and talk to it from C#.

Neither of these seem appealing.

  • I could use the Blockchain API.
  • I could set up my own server and run the wallets on the server.

Neither of these seem appealing either.

Anyone know of an easier way to run a Bitcoin client without a full blockchain using C#? I would ideally like users to retain control over their wallets, with the client code finding incoming payments and facilitating the sending of coins.

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    Why is it important that it be written in C#? – Nate Eldredge Apr 2 '14 at 12:56
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    For LoB desktop apps, C#/WPF is the weapon of choice. You would need a reason to deviate from that. Java sucks for desktop apps, C++ is hopelessly unproductive for desktop apps. HTML5+JS might be an option, but that would be a bit limiting. – Avram Apr 3 '14 at 0:41
  • Well, having a bunch of existing code in another language would seem like a pretty good reason to me. But what do I know? – Nate Eldredge Apr 3 '14 at 0:43
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    Possibly, but it would be a little bit like the tail wagging the dog. – Avram Apr 3 '14 at 0:44
  • @Avram as the author of BitcoinLib (github.com/GeorgeKimionis/BitcoinLib) I was contacted by another C# developer who wants to do exactly the same thing as you, you will find my e-mail in my GitHub profile page so please drop me a line there, I can bring you guys in touch and maybe you could team up and build this thing together. – George Kimionis Apr 8 '14 at 22:25
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Have you guys see this recent GitHub? I too have been poking around looking for a standalone library.

https://github.com/TangibleCryptography/BitSharper

I have it downloaded, just trying to fix dependencies so I can compile. Looks promising.

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NBitcoin supports connection to the bitcoin network.

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 ignore the ScanState part)

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