Exchange Union Daemon
The Exchange Union Daemon (
xud) powers Exchange Union, a decentralized exchange (DEX) built on the Lightning and Raiden networks to enable instant and trustless cryptocurrency swaps. The vision is to bring individuals and existing, centralized exchanges onto the same network and form one, global liquidity pool. This gives users a choice to either trade directly on the DEX, managing private keys and software stack, or to conveniently trade via a trusted exchange. Exchanges participating in the network aggregate the network's liquidity and can provide deeper order books and new trading pairs to their users.
xud encompasses the following components:
- Integration with lnd and raiden nodes.
- Decentralized order book to locally aggregate orders from the known network.
- Matching engine to match new local orders with existing local and remote orders and initiate atomic swaps with remote peers.
- Peer-to-peer networking with and discovery of other nodes.
- gRPC API with web proxy to serve other applications, also accessible via the command-line interface
This section contains instructions for installing
xud manually, without treating setup of dependencies like
lnd. It is mainly geared towards developers. For all other users, we recommend our streamlined setup via docker.
If you already have Node.js (min 10.15.3) installed, you can install
xud via npm by running
sudo npm install xud -g --unsafe-perm
Detailed instructions for installing
xud can be found in the wiki on our Installation page.
./xud 2018-9-11 01:11:59 [GLOBAL] info: config loaded 2018-9-11 01:11:59 [GLOBAL] info: Local nodePubKey is 029a96c975d301c1c8787fcb4647b5be65a3b8d8a70153ff72e3eac73759e5e345 2018-9-11 01:11:59 [DB] info: connected to database. host:localhost port:3306 database:xud 2018-9-11 01:11:59 [P2P] info: p2p server listening on 0.0.0.0:8885 2018-9-11 01:11:59 [RPC] info: gRPC server listening on localhost:8886
Open a new terminal and issue commands to
xud with the
xucli command line tool. To see a list of available commands, run:
Note: If you installed
xud globally via npm, you can run
xucli from anywhere. Otherwise you must run them from the
All files in this repository are licensed under the GNU Affero General Public License v3.0 unless explicitly stated otherwise in the header of a given file.
Comments, questions, and any development-related discussions are welcome in our Discord chat!