Messages

{
  "type": "channel_data",
  "channel": "trades",
  "id": "BTC-USD",
  "contents": [
    {
      "takerOrderId": "ord-taker-123",
      "makerOrderId": "ord-maker-456",
      "takerAddress": "0xaaa...",
      "makerAddress": "0xbbb...",
      "price": "94500.00",
      "size": "0.5",
      "tradeId": "trade-789",
      "timestamp": 1712345679000000,
      "sequenceNumber": 5001
    }
  ]
}

Market data

Trades

Endpoint: wss://api.testnet.arcus.xyz/v1/ws — one socket multiplexes every channel and RPC request. Click Connect, then send the example subscribe message below to start receiving data.

Public trade stream for a single market. No snapshot on subscribe — only live updates from the moment of subscription.

Each message is an array of fills from a single taker order match. All fills in one array share the same takerOrderId, takerAccountId, timestamp, and sequenceNumber.

WSS

ws?channel=trades

Messages

{
  "type": "channel_data",
  "channel": "trades",
  "id": "BTC-USD",
  "contents": [
    {
      "takerOrderId": "ord-taker-123",
      "makerOrderId": "ord-maker-456",
      "takerAddress": "0xaaa...",
      "makerAddress": "0xbbb...",
      "price": "94500.00",
      "size": "0.5",
      "tradeId": "trade-789",
      "timestamp": 1712345679000000,
      "sequenceNumber": 5001
    }
  ]
}

Subscribe to a market channel

type:object

Trades Update

L2 orderbook updates Markets