Open Source Bitcoin Software

Eclair (French for Lightning) is a Scala implementation of the Lightning Network. This software follows the Lightning Network Specifications (BOLTs). Other implementations include c-lightning, lnd, electrum, and rust-lightning. Eclair offers a feature-rich HTTP API that enables application developers to easily integrate. Eclair's JSON API should NOT be accessible from the outside world (similarly to Bitcoin Core API). Eclair requires Bitcoin Core 0.20.1 or 0.21.1. (other versions of Bitcoin Core are not actively tested - use at your own risk). If you are upgrading an existing wallet, you may need to create a new address and send all your funds to that address. Eclair needs a synchronized, segwit-ready, zeromq-enabled, wallet-enabled, non-pruning, tx-indexing Bitcoin Core node. You must configure your Bitcoin node to use bech32 (segwit) addresses.

Mastering the Lightning Network is an O'Reilly Media book, by authors Andreas M. Antonopoulos (@aantonop), Olaoluwa Osuntokun (@roasbeef), Rene Pickhardt (@renepickhardt). It was published on Dec 21, 2021, in paperback and e-book, by O'Reilly Media. It is available everywhere that books are sold. This repository contains the manuscript of the book as published by O'Reilly Media, tagged as firstedition_firstprint. The book describes the Lightning Network (LN), a Peer-to-Peer protocol running on top of Bitcoin and other blockchains, which provides near-instant, secure, micro-payments. The book is suitable for technical readers with an understanding of the fundamentals of Bitcoin and other open blockchains. Mastering the Lightning Network is released under the Creative Commons CC-BY-NC-ND license, which allows sharing the source code for personal use only. You may read this book for free.