MEXC price feed

Wide altcoin coverage. Streamed via aggregated bookTicker (protobuf). Every MEXC quote appears in ticker:<SYMBOL> messages with "ex":"mexc".

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

MEXC native format → Aeon format

What MEXC 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. MEXC pushes Protocol Buffers (binary), not JSON. Shown here decoded.

Endpoint: wss://wbs-api.mexc.com/ws

1 · Subscribe request sent to MEXC

{
  "method": "SUBSCRIPTION",
  "params": [
    "[email protected]@100ms@BTCUSDT"
  ]
}

2 · Native message from MEXC

{
  "channel": "[email protected]@100ms@BTCUSDT",
  "symbol": "BTCUSDT",
  "sendTime": 1794472286644,
  "publicAggreBookTicker": {
    "bidPrice": "73535.32",
    "bidQuantity": "0.000067",
    "askPrice": "73535.45",
    "askQuantity": "0.0057252"
  }
}

MEXC field	Aeon field
`symbol`	symbol
`publicAggreBookTicker.bidPrice / bidQuantity`	b, bq
`publicAggreBookTicker.askPrice / askQuantity`	a, aq
`createTime / sendTime`	et (exchange event time)

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

{
  "type": "ticker",
  "ts": 1794472286645,
  "channel": "ticker:BTCUSDT",
  "s": "BTCUSDT",
  "data": [
    {
      "ex": "mexc",
      "b": 73535.32,
      "a": 73535.45,
      "bq": 0.000067,
      "aq": 0.0057252,
      "t": 1794472286644,
      "et": 1794472286644
    }
  ]
}

Pairs on MEXC

Checking which pairs are listed…