Explore AI, agents, blockchain and crypto through official sources, concrete tasks and practical guides.
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Bitcoin Keeper is an open-source, non-custodial Bitcoin multisig wallet application for Android and iOS, with hardware-wallet support, recovery planning and inheritance-oriented wallet structures.
Guide: Set up the Bitcoin Keeper development projectBitcoin Lib is a Scala library that wraps ACINQ’s Kotlin Bitcoin library and provides Bitcoin protocol functions, including block and transaction parsing, Base58 encoding and decoding, transaction creation and validation, and script operations.
Guide: Use Bitcoin-lib's Scala console for Base58 encodingBitcoin Monitoring is an open-source Swift app for macOS that displays selected cryptocurrency prices in the menu bar using Binance’s public price API.
Guide: Run Bitcoin Monitoring from XcodeBitcoin Node Manager is a self-hosted web dashboard and control system for a Bitcoin Core node, with views of peers, blockchain activity and mempool statistics, plus tools for peer rules and ban-list management.
Guide: Set up BNM with a web serverBitcoin Ordinals Bot is a C#/.NET application described as a bot for buying Bitcoin Ordinals on Ordinalswallet.
Guide: Review the bot’s documented Ordinals trading sequenceBitcoin Php is an open-source PHP library that implements Bitcoin data structures and operations, including transaction handling, script tools, deterministic key and seed formats, and Electrum/Stratum server bindings.
Guide: Install Bitcoin Php with ComposerBitcoin Recover Privkey is a Python proof of concept that demonstrates recovering a Bitcoin private key from weak ECDSA signatures sharing the same r value.
Guide: Run the Python proof of conceptBitcoin Rs is an independent Bitcoin full-node project implemented in Rust, with node-owned indexing, JSON-RPC and typed in-process integration for Rust applications.
Guide: Build and start the quick-start nodeBitcoin S is an open-source Scala toolkit for building Bitcoin and Lightning applications on the JVM.
Guide: Add Bitcoin-S modules to a Scala projectBitcoin Safe is desktop software for managing Bitcoin cold-storage wallets, with tools for multisignature setup, hardware-signer coordination and transaction management.
Guide: Install Bitcoin Safe from its Git repository on Ubuntu or DebianBitcoin Spring Boot Starter is a Java library project that provides dependency modules for building Bitcoin-related applications with Spring Boot.
Guide: Add the JSON-RPC client starter dependencyBitcoin Stack is a Docker Compose template for running a local regtest environment with Bitcoin, Lightning implementations, Elements/Liquid and Electrs.
Guide: Start a Bitcoin regtest environment with ElectrsBitcoin Testnet Box is a Docker-capable command-line setup that launches two Bitcoin Core nodes in regtest mode, connected only to each other.
Guide: Start the two-node regtest environmentBitcoin Tools is an open-source Python library for teaching and research on Bitcoin transactions. It provides code to create and customize transactions and scripts, decode transactions from hexadecimal data, and inspect UTXO-set data.
Guide: Build and inspect a raw Bitcoin transactionBitcoin Transaction Explorer is a browser-based Bitcoin block explorer that retrieves blockchain data from Bitcoin Core over JSON-RPC or from Blockr’s API.
Guide: Build and deploy the explorerBitcoin Transactions is an open-source JavaScript library and standalone offline browser app for managing addresses and keys and creating transactions across Bitcoin-based networks.
Guide: Install the Node.js versionBitcoin Tribe is a TypeScript and React Native mobile Bitcoin wallet project described for friends and family, with Lightning and gifting features.
Guide: Set up the development environment and configure a networkBitcoin Wallet is an open-source desktop Bitcoin application designed to give new users a simpler way to manage keys and transact.
Guide: Set up and build the Bitcoin Wallet desktop application