WebSocket APIConnection Keep-AliveCopy pageWSSwss://api.hyperliquid-testnet.xyz/wsKeep a Predict trading WebSocket connected by sending a Hyperliquid ping before 60 seconds of outbound inactivity and handling each pong response.HandshakeTry itWSSwss://api.hyperliquid-testnet.xyz/wsSendpingobjectRequiredShow 1 propertyReceivepongobjectRequiredShow 1 property
