1.btcpayserver / btcpayserverAccept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor. bitcoinbitcoin-payment-gatewaylightning-networkpayment-gatewaybitcoin-payment-processorcrowdfunding+2 moreC#MIT7.9K total2.1K forks+228 starsfrom 7,662 · score 5.43
2.WalletWasabi / WalletWasabiOpen-source, non-custodial, privacy preserving Bitcoin wallet for Windows, Linux, and Mac.bitcoin-walletprivacybitcoindotnetnbitcoincross-platform+7 moreC#MIT2.6K total574 forks+59 starsfrom 2,577 · score 4.09
3.NethermindEth / nethermindA robust, high-performance execution client for Ethereum node operators.ethereumblockchainevmethereum-clientethC#GPL-3.01.6K total760 forks+47 starsfrom 1,580 · score 3.87
4.neo-project / neoNEO Smart EconomyneoblockchainC#MIT3.5K total1K forks+11 starsfrom 3,530 · score 2.48
6.MetacoSA / NBitcoinComprehensive Bitcoin library for the .NET framework.C#MIT1.9K total869 forks+3 starsfrom 1,934 · score 1.39