Awesome Bitcoin
===============
A curated list of bitcoin services and tools for software developers
!Awesome (https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg) (https://github.com/sindresorhus/awesome)

List of content

- Utilities (#utilities)
- Blockchain API and Web services (#blockchain-api-and-web-services)
- Wallets API (#wallets-api)
- Open Source wallets (#open-source-wallets)
- Blockchain Explorers (#blockchain-explorers)
- C Libraries (#c-libraries)
- C++ Libraries (#c-libraries-1)
- JavaScript Libraries (#javascript-libraries)
- PHP Libraries (#php-libraries)
- Ruby Libraries (#ruby-libraries)
- Python Libraries (#python-libraries)
- Java Libraries (#java-libraries)
- Scala Libraries (#scala-libraries)
- Swift Libraries (#swift-libraries)
- .Net Libraries (#net-libraries)
- Haskell Libraries (#haskell-libraries)
- Playgrounds (#playgrounds)
- Blockchain dump (#blockchain-dump)
- Full nodes (#full-nodes)
- Read (#read)
- Course (#course)
- Additional Resources (#additional-resources)


Utilities
⟡ Nigiri (https://github.com/vulpemventures/nigiri/) - CLI to quickly fire up a a Bitcoin regtest box along with Electrs and Esplora. Includes faucet and push commands.
⟡ hal (https://github.com/stevenroose/hal) - Bitcoin CLI swiss-army-knife (based on rust-bitcoin).
⟡ BitKey (https://bitkey.io) - Live USB for airgapped transactions and Bitcoin swiss army knife.
⟡ Pycoin (https://github.com/richardkiss/pycoin) - Python-based Bitcoin and alt-coin utility library.
⟡ bx (https://github.com/libbitcoin/libbitcoin-explorer) - Bitcoin Command Line Tool.
⟡ txwatcher (https://github.com/tsileo/txwatcher) - A little Python utility that lets you monitor Bitcoin addresses through Blockchain Websocket API and perform custom callbacks.
⟡ hellobitcoin
 (https://github.com/prettymuchbryce/hellobitcoin) - A collection of simple programs which can generate bitcoin wallets, create and sign transactions, and send transactions over the bitcoin network.
⟡ Mining visualization (http://www.yogh.io/#mine:last)
⟡ HD Wallet Scanner (https://github.com/alexk111/HD-Wallet-Scanner) - Find all used addresses in your Bitcoin HD wallets bypassing gap limits.
⟡  web component.

Blockchain API and Web services
⟡ 3xpl.com (https://3xpl.com/) - Fastest ad-free universal block explorer.
⟡ Bitquery.io (https://bitquery.io/) - Bitquery provides blockchain data, offering real-time streaming APIs for 40+ chains, NFT APIs, and a money flow investigation tool.
⟡ block.io (https://block.io)
⟡ blockchair.com (https://blockchair.com/) - Universal blockchain explorer and search engine.
⟡ BlockCypher (https://www.blockcypher.com)
⟡ Esplora (https://github.com/Blockstream/esplora) - Self-hosted blockchain explorer.
⟡ Insight (https://insight.is)
⟡ Chain.com (https://chain.com)
⟡ Coinbase Wallet (https://wallet.coinbase.com/)
⟡ Chainradar API (https://github.com/yasaricli/chainradar-api) - Blockchain Explorer API for Chainradar.
⟡ One-Time Address (https://github.com/alexk111/One-Time-Address) A better way to share your Bitcoin address.
⟡ Cryptocurrency Alerting (https://cryptocurrencyalerting.com/blockchain-alerts.html) - Bitcoin wallet monitoring and blockchain alerts.
⟡ BTC Connect (https://developers.particle.network/reference/introduction-to-btc-connect) - Unified Bitcoin Layer-1 and Layer-2 wallet connection and account abstraction.

Market Data API
⟡ CoinMetrics.io (https://docs.coinmetrics.io/api/v2/) JSON REST API (free as well as paid) with access to market data. Also CSV data file download available.
⟡ Messari.io (https://messari.io/api) JSON REST API (free as well as paid) with access to market data, news, metrics, profile, etc. 

Wallets API
⟡ BitGo (https://bitgo.github.io/bitgo-docs/)
⟡ Coinbase (https://developers.coinbase.com)
⟡ Blockchain.com (https://www.blockchain.com/api)
⟡ BIP32 (http://bip32.org)
⟡ walletOS (https://www.pinestreetlabs.com/walletos/)

Open Source Wallets
⟡ CoPay by BitPay (https://copay.io/)
⟡ Coinb.in (https://coinb.in)
⟡ Electrum (https://electrum.org/)

Blockchain Explorers
⟡ 3xpl.com (https://3xpl.com/bitcoin) - Fastest ad-free universal block explorer.
⟡ Chain.so (http://chain.so)
⟡ Blockchain.com (https://blockchain.com)
⟡ Blockchair.com (https://blockchair.com/bitcoin) - Universal blockchain explorer and search engine.
⟡ Blockstream.info (https://blockstream.info) - Blockchain explorer with API (mainnet, testnet and Liquid).
⟡ BlockTrail (https://www.blocktrail.com/BTC) 
⟡ Bitcoin Transaction Explorer (https://github.com/JornC/bitcoin-transaction-explorer)
⟡ Blockexplorer.com (https://blockexplorer.com)
⟡ Smartbit (https://www.smartbit.com.au)
⟡ Bitkit (https://bitkit.live) - Real time transaction updates.

C Libraries
⟡ libsecp256k1 (https://github.com/bitcoin-core/secp256k1)

C++ Libraries
⟡ Libbitcoin (https://libbitcoin.org/)
⟡ libwally-core (https://github.com/ElementsProject/libwally-core)

JavaScript Libraries
⟡ Awesome CryptoCoinJS (https://github.com/cryptocoinjs/awesome-cryptocoinjs)
⟡ Bitcore Library (https://github.com/bitpay/bitcore/tree/v8.0.0/packages/bitcore-lib)
⟡ Bitcoinjs-lib (https://github.com/bitcoinjs/bitcoinjs-lib)
⟡ Cryptocoin (http://cryptocoinjs.com/#modules)
⟡ BlockTrail SDK NodeJS (https://github.com/blocktrail/blocktrail-sdk-nodejs)
⟡ bcoin (https://github.com/bcoin-org/bcoin) - Javascript bitcoin library for node.js and browsers.
⟡ Libauth (https://libauth.org/) – A lightweight, zero-dependency, JavaScript/TypeScript bitcoin library.
⟡ noble-curves (https://github.com/paulmillr/noble-curves) — audited implementation of secp256k1 + schnorr in pure typescript
⟡ noble-secp256k1 (https://github.com/paulmillr/noble-secp256k1) — alternative implementation of secp256k1: size is only 4KB gzipped; lots of comments, very valuable for learning how algorithms work
⟡ scure-btc-signer (https://github.com/paulmillr/scure-btc-signer) — audited & minimal library for creating, signing & decoding Bitcoin transactions. With Schnorr, Taproot, UTXO & PSBT.

PHP Libraries
⟡ PHP-OP_RETURN (https://github.com/coinspark/php-OP_RETURN)
⟡ BlockTrail PHP SDK (https://github.com/blocktrail/blocktrail-sdk-php)

Ruby Libraries
⟡ Bitcoin-ruby (https://github.com/lian/bitcoin-ruby)
⟡ bitcoinrb (https://github.com/chaintope/bitcoinrb) - Ruby bitcoin library including script interpreter.
⟡ bech32rb (https://github.com/azuchi/bech32rb) - Bech32 and Bech32m encode/decode library.
⟡ bip-schnorrrb (https://github.com/chaintope/bip-schnorrrb) - Schnorr signature library for Bitcoin.

Python Libraries
⟡ BlockTrail SDK Python (https://github.com/blocktrail/blocktrail-sdk-python)
⟡ btctxstore (https://github.com/F483/btctxstore) - Simple library to store/retrieve information in bitcoin transactions using OP_RETURN.
⟡ pybitcointools (https://github.com/vbuterin/pybitcointools) - Python library for Bitcoin signatures and transactions from Vitalik Buterin. Project discontinued.
⟡ pycoin (https://github.com/richardkiss/pycoin) - Python library for Bitcoin keys, signatures, transactions. Includes full VM implementation and tools for manipulating keys (ku) and transactions (tx).
⟡ bitcoin_tools (https://github.com/sr-gi/bitcoin_tools) - Python library for building and analyzing transactions and scripts (both standard and custom). Comes along with a UTXO set analysis tool. Includes 
several examples and exhaustive documentation.
⟡ oogway (https://github.com/merwane/oogway) - A secure Bitcoin utility library for Python.

Java Libraries
▐ Note that you can also use Scala libraries (#scala-libraries) in Java.
⟡ BitcoinJ (https://bitcoinj.github.io)
⟡ XChange (https://github.com/knowm/XChange) - Library that provides a simple and consistent API for interacting with 50+ Bitcoin currency exchanges.
⟡ Bitcoin Spring Boot Starter (https://github.com/theborakompanioni/bitcoin-spring-boot-starter) - Bitcoin integration for Spring Boot applications.

Scala libraries
▐ Note that you can also use Java libraries (#java-libraries) in Scala.
⟡ Bitcoin-S (https://bitcoin-s.org) - Scala/JVM toolkit for Bitcoin applications, includes Bitcoin data structures, transaction signing, strongly typed bitcoind/Eclair RPC clients, and more.

Swift libraries
⟡ secp256k1.swift (https://github.com/GigaBitcoin/secp256k1.swift) - Swift package for secp256k1 applications, includes Elliptic Curve operations, Schnorr, ZKP and more for Bitcoin.

.Net Libraries
⟡ NBitcoin (https://github.com/MetacoSA/NBitcoin) - Comprehensive Bitcoin library for the .NET framework.
⟡ BitcoinLib (https://github.com/cryptean/bitcoinlib) - The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#.

Haskell Libraries
⟡ Haskoin-core (https://github.com/haskoin/haskoin-core) - Haskoin Core is a library of Bitcoin and Bitcoin Cash functions written in Haskell.

Playgrounds
⟡ Script Playground (https://www.crmarsh.com/script-playground/)
⟡ Bitcoin IDE (https://github.com/siminchen/bitcoinIDE) - Bitcoin Script for dummies.
⟡ Script Debugger (https://github.com/kallewoof/btcdeb)
⟡ Bitcore Playground (https://bitcore.io/playground/)
⟡ Mnemonic Code generator (https://iancoleman.io/bip39/)
⟡ blockchain-demo (https://github.com/anders94/blockchain-demo/) - A web-based demonstration of blockchain concepts.
⟡ Bitcoin Script Debugger (https://github.com/liuhongchao/bitcoin4s) - Visualize Bitcoin script execution for real transactions.
⟡ Bitauth IDE (https://ide.bitauth.com/) – An interactive development environment for Bitcoin contracts.
⟡ ChainQuery Bitcoin RPC (https://chainquery.com) - Run select bitcoin RPC API calls and read full RPC docs in your browser.

Blockchain dump
⟡ WebBTC (http://dumps.webbtc.com/bitcoin/) - These are postgres database dumps of the bitcoin-ruby-blockchain database generated by webbtc.com.
⟡ BitcoinDatabaseGenerator
 (https://github.com/ladimolnar/BitcoinDatabaseGenerator) - A high performance data transfer tool that can be used to copy data from Bitcoin Core blockchain files to a SQL Server database.
⟡ Blockparser+SQL (https://github.com/mcdee/blockparser) - Fast, quick and dirty bitcoin blockchain parser.
⟡ BitcoinABE (https://github.com/bitcoin-abe/bitcoin-abe) - Abe: block browser for Bitcoin and similar currencies.
⟡ Chaingraph (https://github.com/bitauth/chaingraph/) – A multi-node blockchain indexer and GraphQL API.

Full nodes
⟡ btcd (https://github.com/btcsuite/btcd/) - Go-based full node since 2013.
⟡ Bitcoin-ruby-node (https://github.com/mhanne/bitcoin-ruby-node) - bitcoin node based on bitcoin-ruby-blockchain.
⟡ Fullnode (https://github.com/moneybutton/yours-bitcoin) - Javascript implementation of bitcoin.
⟡ Bitcore Node (https://github.com/bitpay/bitcore-node) - bitcoind linked to node.js by BitPay.
⟡ Bitcore (https://github.com/bitpay/bitcore) - Formerly just a Nodejs library, now a full node.

Read
⟡ A Gentle Introduction to Bitcoin Core Development (https://medium.com/bitcoin-tech-talk/a-gentle-introduction-to-bitcoin-core-development-fdc95eaee6b8)
⟡ Mastering Bitcoin (https://github.com/bitcoinbook/bitcoinbook)
⟡ Grokking Bitcoin (https://www.manning.com/books/grokking-bitcoin) - An in-depth technical book with rich illustrations.
⟡ Bitcoin Stackexchange (https://bitcoin.stackexchange.com)
⟡ Elliptic Curve Cryptography A Gentle Introduction (https://andrea.corbellini.name/2015/05/17/elliptic-curve-cryptography-a-gentle-introduction/).
⟡ Bitcoin Programming with BitcoinJS and Bitcoin Core CLI (https://github.com/bitcoin-studio/Bitcoin-Programming-with-BitcoinJS).
⟡ Bitcoin Protocol Development Curriculum - Chaincode Labs (https://github.com/chaincodelabs/bitcoin-curriculum).
⟡ Lightning Network Protocol Development Curriculum - Chaincode Labs (https://github.com/chaincodelabs/lightning-curriculum).
⟡ btcinformation.org / Developer Documentation (https://btcinformation.org/en/developer-documentation) - Find useful resources, guides and reference material for developers.

Course
⟡ Bitcoin & Cryptocurrency (http://bitcoinbook.cs.princeton.edu/).

Additional Resources
⟡ @lopp / Bitcoin Developers (https://twitter.com/lopp/lists/bitcoin-developers) - Software developers who have experience working on Bitcoin implementations or applications.
⟡ @lopp / Lightning Developers (https://twitter.com/i/lists/981976067551490048) - Software developers with experience working on LN implementations / applications.
⟡ Practical Bitcoin Info - Google Sheets (https://docs.google.com/spreadsheets/d/1Z3Ofa4P8097VWV70Z_bMqIMladngvm-Ck24ot9TDNmw/).
⟡ A brief history of Bitcoin development... (https://www.youtube.com/watch?v=ZfFNce6CVsE)
⟡ bitcoin-resources.com (https://bitcoin-resources.com/) Meta-list of Bitcoin resources, from books, articles, to podcasts.
⟡ Jameson Lopp Bitcoin Resource List (https://www.lopp.net/bitcoin-information.html) Very detailed curated Bitcoin resource list and meta-list by J. Lopp
⟡ River Learn (https://river.com/learn) A collection of educational resources to learn about Bitcoin basics, investing, technology, and more.
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Inspired by the awesome (https://github.com/sindresorhus/awesome) list thing.
Created by BlockchainU fellows.

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License

!CC0 (https://i.creativecommons.org/p/zero/1.0/88x31.png) (https://creativecommons.org/publicdomain/zero/1.0/)

To the extent possible under law, Igor Barinov (https://github.com/igorbarinov/) has waived all copyright and related or neighboring rights to this work.