What is… GRS Eclair

Groestlcoin News
2 min readSep 22, 2022

Groestlcoin Eclair (French for Lightning) is a Scala implementation of the Lightning Network. It can run with or without a GUI, and a JSON API is also available.

Groestlcoin Eclair requires Groestlcoin Core 2.18.2, 2.19.1 or 2.20.1. If you are upgrading an existing wallet, you need to create a new address and send all your funds to that address.
Groestlcoin Eclair needs a synchronized, segwit-ready, zeromq-enabled, wallet-enabled, non-pruning, tx-indexing Groestlcoin Core node.
Groestlcoin Eclair will use any GRS it finds in the Groestlcoin Core wallet to fund any channels you choose to open. Eclair will return GRS from closed channels to this wallet.
You must configure your Groestlcoin node to use bech32 (segwit) addresses. If your wallet has “non-segwit UTXOs” (outputs that are neither p2sh-segwit or bech32), you must send them to a bech32 address before running eclair.


  • Creating channels.
  • Closing channels.
  • Completely managing all channel states (including the exceptional ones!).
  • Mainnet and testnet support


Groestlcoin Eclair is developed in Scala, a powerful functional language that runs on the JVM, and is packaged as a ZIP archive.
eclair-node (server daemon): https://github.com/Groestlcoin/eclair/releases/download/v0.7.0/eclair-node_2.13-0.7.0-bin.zip
eclair-front (cluster mode): https://github.com/Groestlcoin/eclair/releases/download/v0.7.0/eclair-front_2.13-0.7.0-bin.zip
eclair-front (awseb bundle): https://github.com/Groestlcoin/eclair/releases/download/v0.7.0/eclair-front_2.13-0.7.0-awseb-bundle.zip

Source Code