OKX price feed

Top-tier global exchange. Streamed via the books5 channel. Every OKX quote appears in ticker:<SYMBOL> messages with "ex":"okx".

Only OKX quotes

const ws = new WebSocket("wss://aeonfeed.com/ws?subscribe=ticker:BTCUSDT,ticker:ETHUSDT");
ws.onmessage = (e) => {
  const msg = JSON.parse(e.data);
  if (msg.type !== "ticker" && msg.type !== "snapshot") return;
  const quotes = (msg.data ?? []).filter((q) => q.ex === "okx");
  for (const q of quotes) console.log(msg.s, q.b, q.a);
};

OKX native format → Aeon format

What OKX actually sends for BTC/USDT, captured from its public WebSocket, and the normalised quote you receive from Aeon Feed. Depth arrays are trimmed for readability.

Endpoint: wss://ws.okx.com:8443/ws/v5/public

1 · Subscribe request sent to OKX

{
  "op": "subscribe",
  "args": [
    {
      "channel": "books5",
      "instId": "BTC-USDT"
    }
  ]
}

2 · Native message from OKX

{
  "arg": {
    "channel": "books5",
    "instId": "BTC-USDT"
  },
  "data": [
    {
      "asks": [
        [
          "73556.7",
          "0.60445515",
          "0",
          "8"
        ],
        [
          "73557",
          "0.081092",
          "0",
          "2"
        ],
        "…"
      ],
      "bids": [
        [
          "73556.6",
          "0.47514986",
          "0",
          "10"
        ],
        [
          "73556.5",
          "0.18101015",
          "0",
          "1"
        ],
        "…"
      ],
      "instId": "BTC-USDT",
      "ts": "1794472000205",
      "seqId": 83726844810
    }
  ]
}

OKX field	Aeon field
`arg.instId (BTC-USDT)`	symbol (BTCUSDT)
`data[0].bids[0] = [price, size, _, orders]`	b, bq
`data[0].asks[0]`	a, aq
`data[0].ts`	et (exchange event time)

3 · What you receive from Aeon Feed (ticker:BTCUSDT)

{
  "type": "ticker",
  "ts": 1794472001001,
  "channel": "ticker:BTCUSDT",
  "s": "BTCUSDT",
  "data": [
    {
      "ex": "okx",
      "b": 73556.6,
      "a": 73556.7,
      "bq": 0.47514986,
      "aq": 0.60445515,
      "t": 1794472001000,
      "et": 1794472000205
    }
  ]
}

Pairs on OKX

Checking which pairs are listed…