Track Awesome Bitcoin Updates Weekly
A curated list of bitcoin services and tools for software developers
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Mar 30 - Apr 05, 2026
Market Data API
- CoinPaprika Free crypto market data API. 12,000+ coins, 350+ exchanges, tickers, OHLCV, historical prices. No API key for free tier.
Mar 23 - Mar 29, 2026
C Libraries
- UltrafastSecp256k1 (⭐20) - High-performance
secp256k1engine with a stable C ABI, CPU, CUDA, OpenCL, embedded, and WebAssembly targets.
Mar 09 - Mar 15, 2026
Utilities
- BTC Airgap Bridge (⭐3) - 100% client-side tool for broadcasting signed Bitcoin transactions from air-gapped wallets.
- SuperScalar MCP (⭐0) - MCP server for SuperScalar Bitcoin Lightning channel factories — onboard N users in one shared UTXO, no soft fork required.
Additional Resources
- Knowing Bitcoin - Comprehensive Bitcoin education with 214+ in-depth guides on Lightning Network, wallets, security, privacy, and nodes.
Mar 02 - Mar 08, 2026
Utilities
- Bitcoin Serverless Donations (⭐4) - Self-custodial serverless donation widget with address rotation derived from an XPUB.
- Chartscout - Real-time BTC chart pattern detection and trading alerts across multiple exchanges.
Blockchain API and Web services
- Bitview - 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.
Wallets API
Open Source Wallets
C++ Libraries
Additional Resources
- Bennet.org - Interactive technical guides for bitcoiners.
Feb 02 - Feb 08, 2026
Utilities
- Deadhand Protocol - Dead man's switch for crypto using Shamir's Secret Sharing to protect seed phrases and ensure inheritance.
Dec 29 - Jan 04, 2025
Rust Libraries
- Bithoven (⭐42) - 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.
Apr 28 - May 04, 2025
Utilities
- BTC Tooling (⭐33) - Bitcoin dashboard with real-time price data, a chart, orderbook, market summary, Twitter/X insights, and halving countdown data. Live Demo
Jan 13 - Jan 19, 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.
Aug 05 - Aug 11, 2024
Privacy projects
- Joinmarket (⭐821) - Decentralized CoinJoin implementation
- Jam - User friendly frontend for Joinmarket
JavaScript Libraries
- bitcoin-sdk-js (⭐39) — Bitcoin TypeScript/JavaScript Library for NodeJS, Browser and Mobile. Segwit & Taproot support.
Jun 17 - Jun 23, 2024
Python Libraries
- pybtc (⭐13) - Python BTC is an experimental project that aims to provide human-friendly interfaces for common BTC operations.
Jun 10 - Jun 16, 2024
Blockchain API and Web services
- mempool.space - Open source and self hostable REST, WebSocket and Electrum RPC API
Open Source Wallets
Blockchain Explorers
- mempool.space - Open source, self hostable blockchain, mempool and lightning network explorer
Rust Libraries
- Bitcoin Dev Kit (BDK) - With BDK, you can seamlessly build cross platform mobile wallets
- Rust Bitcoin (⭐2.6k) - support for de/serialization, parsing and executing on data-structures and network messages.
- Lightning Dev Kit (LDK) - Complete Lightning implementation packaged as an SDK
Full nodes
- Bitcoin Core - direct descendant of the original Bitcoin implementation in C++
Additional Resources
- Learn me a Bitcoin - Greg Walker - extensive learning resource for bitcoin developers
Jun 03 - Jun 09, 2024
Additional Resources
- Svrgnty.com: Everything Bitcoin A curated list of the best Bitcoin resources.
May 27 - Jun 02, 2024
Open Source Wallets
May 06 - May 12, 2024
Blockchain API and Web services
- Tatum - The blockchain development platform to build Web3 application. The go-to blockchain data API for Web3 developers.
Mar 18 - Mar 24, 2024
Blockchain API and Web services
- Bitquery.io - Bitquery provides blockchain data, offering real-time streaming APIs for 40+ chains, NFT APIs, and a money flow investigation tool.
Haskell Libraries
- Haskoin-core (⭐533) - Haskoin Core is a library of Bitcoin and Bitcoin Cash functions written in Haskell.
Read
Feb 12 - Feb 18, 2024
Blockchain API and Web services
- BTC Connect - Unified Bitcoin Layer-1 and Layer-2 wallet connection and account abstraction.
Additional Resources
- @lopp / Lightning Developers - Software developers with experience working on LN implementations / applications.
May 01 - May 07, 2023
Blockchain API and Web services
- Cryptocurrency Alerting - Bitcoin wallet monitoring and blockchain alerts.
Blockchain Explorers
- 3xpl.com - Fastest ad-free universal block explorer.
- Blockchair.com - Universal blockchain explorer and search engine.
Apr 10 - Apr 16, 2023
Wallets API
JavaScript Libraries
- noble-curves (⭐891) — audited implementation of secp256k1 + schnorr in pure typescript
- noble-secp256k1 (⭐867) — alternative implementation of secp256k1: size is only 4KB gzipped; lots of comments, very valuable for learning how algorithms work
Apr 03 - Apr 09, 2023
C Libraries
Ruby Libraries
- bitcoinrb (⭐67) - Ruby bitcoin library including script interpreter.
- bech32rb (⭐22) - Bech32 and Bech32m encode/decode library.
- bip-schnorrrb (⭐8) - Schnorr signature library for Bitcoin.
Mar 20 - Mar 26, 2023
JavaScript Libraries
- scure-btc-signer (⭐237) — audited & minimal library for creating, signing & decoding Bitcoin transactions. With Schnorr, Taproot, UTXO & PSBT.
Swift libraries
- secp256k1.swift (⭐149) - Swift package for secp256k1 applications, includes Elliptic Curve operations, Schnorr, ZKP and more for Bitcoin.
Mar 06 - Mar 12, 2023
Utilities
<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.
- blockchair.com - Universal blockchain explorer and search engine.
Jan 09 - Jan 15, 2023
Playgrounds
- ChainQuery Bitcoin RPC - Run select bitcoin RPC API calls and read full RPC docs in your browser.
Dec 20 - Dec 26, 2021
Playgrounds
- Bitauth IDE – An interactive development environment for Bitcoin contracts.
Dec 06 - Dec 12, 2021
JavaScript Libraries
- Libauth – A lightweight, zero-dependency, JavaScript/TypeScript bitcoin library.
Blockchain dump
- Chaingraph (⭐59) – A multi-node blockchain indexer and GraphQL API.
Jul 12 - Jul 18, 2021
Java Libraries
- Bitcoin Spring Boot Starter (⭐80) - Bitcoin integration for Spring Boot applications.
Mar 29 - Apr 04, 2021
Full nodes
- Fullnode (⭐196) - Javascript implementation of bitcoin.
Jan 11 - Jan 17, 2021
.Net Libraries
- NBitcoin (⭐1.9k) - Comprehensive Bitcoin library for the .NET framework.
Oct 26 - Nov 01, 2020
Additional Resources
- River Learn A collection of educational resources to learn about Bitcoin basics, investing, technology, and more.
Sep 28 - Oct 04, 2020
Utilities
- Nigiri (⭐327) - CLI to quickly fire up a a Bitcoin regtest box along with Electrs and Esplora. Includes faucet and push commands.
- hal (⭐213) - Bitcoin CLI swiss-army-knife (based on rust-bitcoin).
Blockchain API and Web services
- Esplora (⭐1.2k) - Self-hosted blockchain explorer.
Blockchain Explorers
- Blockstream.info - Blockchain explorer with API (mainnet, testnet and Liquid).
Full nodes
- btcd (⭐6.7k) - Go-based full node since 2013.
Aug 31 - Sep 06, 2020
Python Libraries
- 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.
Jul 27 - Aug 02, 2020
Additional Resources
- 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
Jun 29 - Jul 05, 2020
Market Data API
- Messari.io JSON REST API (free as well as paid) with access to market data, news, metrics, profile, etc.
Dec 16 - Dec 22, 2019
Utilities
- BitKey - Live USB for airgapped transactions and Bitcoin swiss army knife.
- Pycoin (⭐1.4k) - Python-based Bitcoin and alt-coin utility library.
- bx (⭐633) - 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.
Blockchain API and Web services
- Chainradar API (⭐4) - Blockchain Explorer API for Chainradar.
JavaScript Libraries
- bcoin (⭐3.1k) - Javascript bitcoin library for node.js and browsers.
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).
Java Libraries
- XChange (⭐4k) - Library that provides a simple and consistent API for interacting with 50+ Bitcoin currency exchanges.
Scala libraries
- Bitcoin-S - Scala/JVM toolkit for Bitcoin applications, includes Bitcoin data structures, transaction signing, strongly typed
bitcoind/Eclair RPC clients, and more.
.Net Libraries
- BitcoinLib (⭐416) - The most complete, up-to-date, battle-tested .net Library and RPC Wrapper for Bitcoin and Altcoins in C#.
Playgrounds
- Bitcoin IDE (⭐221) - Bitcoin Script for dummies.
- blockchain-demo (⭐5.7k) - A web-based demonstration of blockchain concepts.
- Bitcoin Script Debugger (⭐59) - Visualize Bitcoin script execution for real transactions.
Blockchain dump
- BitcoinDatabaseGenerator (⭐127) - 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 (⭐60) - Fast, quick and dirty bitcoin blockchain parser.
- BitcoinABE (⭐979) - Abe: block browser for Bitcoin and similar currencies.
Full nodes
- Bitcoin-ruby-node (⭐26) - bitcoin node based on bitcoin-ruby-blockchain.
- Bitcore Node (⭐352) - bitcoind linked to node.js by BitPay.
- Bitcore (⭐5k) - Formerly just a Nodejs library, now a full node.
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.
Sep 16 - Sep 22, 2019
Blockchain API and Web services
- One-Time Address (⭐82) A better way to share your Bitcoin address.
Apr 29 - May 05, 2019
Blockchain API and Web services
Wallets API
Blockchain Explorers
JavaScript Libraries
Playgrounds
Read
Jul 23 - Jul 29, 2018
C++ Libraries
Mar 12 - Mar 18, 2018
Blockchain Explorers
Jan 15 - Jan 21, 2018
Playgrounds
Feb 29 - Mar 06, 2016
Blockchain Explorers
Feb 15 - Feb 21, 2016
JavaScript Libraries
Feb 01 - Feb 07, 2016
PHP Libraries
Jan 18 - Jan 24, 2016
Playgrounds
Dec 14 - Dec 20, 2015
Open Source Wallets
Jun 22 - Jun 28, 2015
Blockchain Explorers
Jun 15 - Jun 21, 2015
Java Libraries
Jun 08 - Jun 14, 2015
Open Source Wallets
JavaScript Libraries
PHP Libraries
Ruby Libraries
Python Libraries
Jun 01 - Jun 07, 2015
Blockchain API and Web services
Wallets API
Blockchain Explorers
JavaScript Libraries