Cryptocurrency GitHub Repositories (2026) · Open Source Tools

⚡ The official implementation of the MultiversX blockchain protocol, written in golang.

Decred daemon in Go (golang).

The "backend" library for Status Apps

The Python BitcoinLib provides developers with a wide range of tools to work with Bitcoin: manage wallets, private keys and addresses. Interact with the blockchain. And create complex transactions and scripts.

Main Stellar client library for the JavaScript language.

C#/.NET client library for the Binance.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.

Core wallet and protocol manager for WDK (Wallet Development Kit) by Tether.

Metamask Desktop client and Web3 dApp browser for Windows, macOS, and Linux. Built with EVM and Solana support.

A secure Decred wallet daemon written in Go (golang).

High performance multithreaded task execution and optimization engine for agents and dweb apps

An Experimental Non-Blockchain Cryptocurrency for Fast Micro Payments

Bitcoin Research Kit's monorepo

Execution client for Seismic

Core for OPEX exchange, Open Source Cryptocurrency Exchange

Stellar SDK for iOS & macOS - Swift, Stellar, Horizon, Soneso

C#/.NET client library for the Bybit.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.

A corridor-integrity monitor for the Stellar network. Prices stablecoin→fiat-token corridors, scores routes against independent reference rates, and refuses to recommend when all options are unusable. Features wallet integration (Freighter/Albedo) and on-chain attestations via Soroban smart contracts.

XDAGJ is an implementation of XDAG in Java. https://xdag.io

C#/.NET client library for the Kucoin.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.

C#/.NET client library for the Kraken.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.