Coinbase WebSockets

Upstream: wss://ws-feed.exchange.coinbase.com

Connect

wscat -c "wss://gateway.graylayer.tech/ws/coinbase?api_key=your_key"

Send a subscribe message within 5 seconds of connecting:

{
  "type": "subscribe",
  "product_ids": ["BTC-USD", "ETH-USD"],
  "channels": ["ticker", "level2", "heartbeat"]
}

Channel	Description
`ticker`	Real-time price updates
`level2`	Full order book updates
`heartbeat`	Heartbeat messages to detect disconnects
`matches`	Matched orders (trades)
`status`	Product status changes

{
  "type": "unsubscribe",
  "product_ids": ["BTC-USD"],
  "channels": ["ticker"]
}