Binance price feed

The largest spot exchange by volume. Streamed via the bookTicker feed. Every Binance quote appears in ticker:<SYMBOL> messages with "ex":"binance".

Only Binance 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 === "binance");
  for (const q of quotes) console.log(msg.s, q.b, q.a);
};

Binance native format → Aeon format

What Binance 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://stream.binance.com:9443/ws/btcusdt@bookTicker

1 · No subscribe message: the stream is selected by the URL path.

2 · Native message from Binance

{
  "u": 102670155757,
  "s": "BTCUSDT",
  "b": "73563.34000000",
  "B": "1.53441000",
  "a": "73563.35000000",
  "A": "0.83956000"
}

Binance field	Aeon field
`s`	symbol (BTCUSDT)
`b`	b
`B`	bq
`a`	a
`A`	aq
`(none)`	no event time: et is omitted, t = receive time

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

{
  "type": "ticker",
  "ts": 1794472001001,
  "channel": "ticker:BTCUSDT",
  "s": "BTCUSDT",
  "data": [
    {
      "ex": "binance",
      "b": 73563.34,
      "a": 73563.35,
      "bq": 1.53441,
      "aq": 0.83956,
      "t": 1794472001000
    }
  ]
}

Pairs on Binance

Checking which pairs are listed…