GoldRush Hyperliquid WebSocket API
WebSocket channels for Hyperliquid markets including l2Book (wire-equal to the public feed), l2BookDiff (GoldRush-exclusive differential updates), and l4Book (order-level GoldRush-exclusive channel) plus wallet firehose, liquidations and vault events, HIP-3 markets, and HIP-4 outcome market streams. Hosted at wss://hypercore.goldrushdata.com/ws for ultra-low-latency trading and analytics.