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

# Price for Small Charts

> Subscribe to historical price data for small chart rendering via WebSocket, pushed every minute.

Push interval: every 1m

```json theme={null}
{
  "id": "clientID11",
  "topic": "history_charts_1m",
  "event": "subscribe"
}
```

**Parameters**

| Name  | Type   | Required | Description                      |
| ----- | ------ | -------- | -------------------------------- |
| id    | string | Y        | id generate by client            |
| event | string | Y        | `subscribe`/`unsubscribe`        |
| topic | string | N        | `history_charts_{time_interval}` |

<RequestExample>
  ```json Response theme={null}
  {
     "id":"clientID11",
     "event":"subscribe",
     "success":true,
     "ts":1682242408023
  }
  ```
</RequestExample>

<ResponseExample>
  ```json Subscribed Message theme={null}
  {
    "topic": "history_charts_1h",
    "ts": 1618820615000,
    "data": [
      {
        "symbol": "PERP_NEAR_USDC",
        "price_list": [
            {
              "ts": 1702989203989,
              "price": 31000
            },
            {
              "ts": 1702989203989,
              "price": 31000
            }
          ]
      },
      {
        "symbol": "PERP_WOO_USDC",
        "price_list": [
            {
              "ts": 1702989203989,
              "price": 31000
            },
            {
              "ts": 1702989203989,
              "price": 31000
            }
          ]
      }
    ]
  }

  ```
</ResponseExample>

```
```