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A curated list of bitcoin services and tools for software developers
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Dec 23, 2025
Rust Libraries
- Bithoven (⭐22) - A High-Level, Imperative Language for Bitcoin Smart Contracts, featuring an LR(1) parser with static analysis for compile-time safety.
Playgrounds
- Bithoven IDE - Web IDE for Bithoven, A High-Level, Imperative Language for Bitcoin Smart Contracts.
Jun 16, 2025
Additional Resources
- Learn me a Bitcoin - Greg Walker - extensive learning resource for bitcoin developers
Apr 21, 2025
Utilities
- BTC Tooling (⭐30) - Bitcoin dashboard with real-time price data, a chart, orderbook, market summary, Twitter/X insights, and halving countdown data. Live Demo
Mar 26, 2025
Blockchain API and Web services
- Maestro - A high-performance Bitcoin RPC and UTXO indexer API that powers applications with real-time blockchain data, mempool monitoring, and event notifications.
Jan 08, 2025
Utilities
- Nigiri (⭐320) - CLI to quickly fire up a a Bitcoin regtest box along with Electrs and Esplora. Includes faucet and push commands.
- hal (⭐211) - Bitcoin CLI swiss-army-knife (based on rust-bitcoin).
- BitKey - Live USB for airgapped transactions and Bitcoin swiss army knife.
- Pycoin (⭐1.4k) - Python-based Bitcoin and alt-coin utility library.
- bx (⭐631) - Bitcoin Command Line Tool.
- txwatcher (⭐50) - A little Python utility that lets you monitor Bitcoin addresses through Blockchain Websocket API and perform custom callbacks.
- hellobitcoin (⭐255) - A collection of simple programs which can generate bitcoin wallets, create and sign transactions, and send transactions over the bitcoin network.
- HD Wallet Scanner (⭐35) - Find all used addresses in your Bitcoin HD wallets bypassing gap limits.
<qr-code>– A no-framework, no-dependencies, customizable, animate-able, SVG-based<qr-code>web component.
Blockchain API and Web services
- 3xpl.com - Fastest ad-free universal block explorer.
- Bitquery.io - Bitquery provides blockchain data, offering real-time streaming APIs for 40+ chains, NFT APIs, and a money flow investigation tool.
- blockchair.com - Universal blockchain explorer and search engine.
- Esplora (⭐1.2k) - Self-hosted blockchain explorer.
- Chainradar API (⭐4) - Blockchain Explorer API for Chainradar.
- One-Time Address (⭐82) A better way to share your Bitcoin address.
- Cryptocurrency Alerting - Bitcoin wallet monitoring and blockchain alerts.
- BTC Connect - Unified Bitcoin Layer-1 and Layer-2 wallet connection and account abstraction.
- Tatum - The blockchain development platform to build Web3 application. The go-to blockchain data API for Web3 developers.
- mempool.space - Open source and self hostable REST, WebSocket and Electrum RPC API
- kibō.money - An open source Bitcoin Core data extractor and visualizer (aka FOSS Glassnode)
Market Data API
- CoinMetrics.io JSON REST API (free as well as paid) with access to market data. Also CSV data file download available.
- Messari.io JSON REST API (free as well as paid) with access to market data, news, metrics, profile, etc.
Wallets API
Open Source Wallets
Privacy projects
- Joinmarket (⭐814) - Decentralized CoinJoin implementation
- Jam - User friendly frontend for Joinmarket
Blockchain Explorers
- 3xpl.com - Fastest ad-free universal block explorer.
- Blockchair.com - Universal blockchain explorer and search engine.
- Blockstream.info - Blockchain explorer with API (mainnet, testnet and Liquid).
- Bitkit - Real time transaction updates.
- mempool.space - Open source, self hostable blockchain, mempool and lightning network explorer
C Libraries
C++ Libraries
JavaScript Libraries
- bcoin (⭐3.1k) - Javascript bitcoin library for node.js and browsers.
- Libauth – A lightweight, zero-dependency, JavaScript/TypeScript bitcoin library.
- noble-curves (⭐869) — audited implementation of secp256k1 + schnorr in pure typescript
- noble-secp256k1 (⭐858) — alternative implementation of secp256k1: size is only 4KB gzipped; lots of comments, very valuable for learning how algorithms work
- scure-btc-signer (⭐230) — audited & minimal library for creating, signing & decoding Bitcoin transactions. With Schnorr, Taproot, UTXO & PSBT.
- bitcoin-sdk-js (⭐39) — Bitcoin TypeScript/JavaScript Library for NodeJS, Browser and Mobile. Segwit & Taproot support.
PHP Libraries
Ruby Libraries
- bitcoinrb (⭐66) - Ruby bitcoin library including script interpreter.
- bech32rb (⭐22) - Bech32 and Bech32m encode/decode library.
- bip-schnorrrb (⭐8) - Schnorr signature library for Bitcoin.
Rust Libraries
- Bitcoin Dev Kit (BDK) - With BDK, you can seamlessly build cross platform mobile wallets
- Rust Bitcoin (⭐2.5k) - support for de/serialization, parsing and executing on data-structures and network messages.
- Lightning Dev Kit (LDK) - Complete Lightning implementation packaged as an SDK
Python Libraries
- btctxstore (⭐11) - Simple library to store/retrieve information in bitcoin transactions using OP_RETURN.
- pybitcointools (⭐1.3k) - Python library for Bitcoin signatures and transactions from Vitalik Buterin. Project discontinued.
- pycoin (⭐1.4k) - Python library for Bitcoin keys, signatures, transactions. Includes full VM implementation and tools for manipulating keys (ku) and transactions (tx).
- bitcoin_tools (⭐311) - 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 - A secure Bitcoin utility library for Python.
- pybtc (⭐11) - Python BTC is an experimental project that aims to provide human-friendly interfaces for common BTC operations.
Java Libraries
- XChange (⭐4k) - Library that provides a simple and consistent API for interacting with 50+ Bitcoin currency exchanges.
- Bitcoin Spring Boot Starter (⭐80) - Bitcoin integration for Spring Boot applications.
Scala libraries
- Bitcoin-S - Scala/JVM toolkit for Bitcoin applications, includes Bitcoin data structures, transaction signing, strongly typed
bitcoind/Eclair RPC clients, and more.
Swift libraries
- secp256k1.swift (⭐144) - Swift package for secp256k1 applications, includes Elliptic Curve operations, Schnorr, ZKP and more for Bitcoin.
.Net Libraries
- NBitcoin (⭐1.9k) - Comprehensive Bitcoin library for the .NET framework.
- BitcoinLib (⭐417) - The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#.
Haskell Libraries
- Haskoin-core (⭐531) - Haskoin Core is a library of Bitcoin and Bitcoin Cash functions written in Haskell.
Playgrounds
- Bitcoin IDE (⭐220) - Bitcoin Script for dummies.
- blockchain-demo (⭐5.6k) - A web-based demonstration of blockchain concepts.
- Bitcoin Script Debugger (⭐57) - Visualize Bitcoin script execution for real transactions.
- Bitauth IDE – An interactive development environment for Bitcoin contracts.
- ChainQuery Bitcoin RPC - Run select bitcoin RPC API calls and read full RPC docs in your browser.
Blockchain dump
- WebBTC - These are postgres database dumps of the bitcoin-ruby-blockchain database generated by webbtc.com.
- BitcoinDatabaseGenerator (⭐126) - 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 (⭐58) - Fast, quick and dirty bitcoin blockchain parser.
- BitcoinABE (⭐980) - Abe: block browser for Bitcoin and similar currencies.
- Chaingraph (⭐58) – A multi-node blockchain indexer and GraphQL API.
Full nodes
- btcd (⭐6.6k) - Go-based full node since 2013.
- Bitcoin-ruby-node (⭐26) - bitcoin node based on bitcoin-ruby-blockchain.
- Fullnode (⭐196) - Javascript implementation of bitcoin.
- Bitcore Node (⭐355) - bitcoind linked to node.js by BitPay.
- Bitcore (⭐5k) - Formerly just a Nodejs library, now a full node.
- Bitcoin Core - direct descendant of the original Bitcoin implementation in C++
Read
- Grokking Bitcoin - An in-depth technical book with rich illustrations.
- btcinformation.org / Developer Documentation - Find useful resources, guides and reference material for developers.
Course
Additional Resources
- @lopp / Bitcoin Developers - Software developers who have experience working on Bitcoin implementations or applications.
- @lopp / Lightning Developers - Software developers with experience working on LN implementations / applications.
- bitcoin-resources.com Meta-list of Bitcoin resources, from books, articles, to podcasts.
- Jameson Lopp Bitcoin Resource List Very detailed curated Bitcoin resource list and meta-list by J. Lopp
- Svrgnty.com: Everything Bitcoin A curated list of the best Bitcoin resources.
- River Learn A collection of educational resources to learn about Bitcoin basics, investing, technology, and more.