> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pacifica.fi/llms.txt
> Use this file to discover all available pages before exploring further.

# Mark Price Candle

> Streams real-time mark price candlestick data for a specific market.

Refer to [Websocket](/api-documentation/api/websocket) for establishing the websocket connection.

### Params

```json theme={null}
{
  "method": "subscribe",
  "params": {
    "source": "mark_price_candle",
    "symbol": "BTC",
    "interval": "1m"
  }
}
```

Where `"interval"` can be `1m, 3m, 5m, 15m, 30m, 1h, 2h, 4h, 8h, 12h, 1d, 1w, 1M`

### Stream

```json theme={null}
{
  "channel": "mark_price_candle",
  "data": {
    "t": 1748954160000,
    "T": 1748954220000,
    "s": "BTC",
    "i": "1m",
    "o": "105376.500000",
    "c": "105380.250000",
    "h": "105385.750000",
    "l": "105372.000000",
    "v": "0",
    "n": 0
  }
}
```

| Field | Type           | Description                     |
| ----- | -------------- | ------------------------------- |
| `'t'` | number         | Start time (milliseconds)       |
| `'T'` | number         | End time (milliseconds)         |
| `'s'` | string         | Symbol                          |
| `'i'` | string         | Candle interval                 |
| `'o'` | decimal string | Open mark price                 |
| `'c'` | decimal string | Close mark price                |
| `'h'` | decimal string | High mark price                 |
| `'l'` | decimal string | Low mark price                  |
| `'v'` | decimal string | Volume (always `"0"`)           |
| `'n'` | number         | Number of trades in this period |