c-lightning

c-lightning is a a BOLT-compliant Lightning implementation by Blockstream [2] written in C language. Version 1 of c-lightning was released on August 8th, 2015, and has since been under active beta development. c-lightning runs on Linux. The Lightning Network is an off-chain, routed payment channel network built on top of the Bitcoin blockchain. The network consists of nodes connected by peer-to-peer channels. This allows low cost, near-instant payments to be trustlessly routed across the network via connected nodes. On top of complying with all BOLT standards, c-lightning is developing an architecture for plugins. Plugins can be built to extend the c-lightning command line API. There are a number of developer tools, libraries and plugins that exist for the c-lightning implementation.