> ## 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.

# Estimated funding rate

> Subscribe to estimated funding rate updates for a symbol via WebSocket, pushed every 15 seconds.

Push interval: 15s

```json theme={null}
{
  "id": "clientID11",
  "topic": "PERP_ETH_USDC@estfundingrate",
  "event": "subscribe"
}
```

**Parameters**

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

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

<ResponseExample>
  ```json Subscribed Message theme={null}
  {
     "topic":"PERP_ETH_USDC@estfundingrate",
     "ts":1682242440000,
     "data":{
        "symbol":"PERP_ETH_USDC",
        "fundingRate":0.00046875,
        "fundingTs":1682242440000
     }
  }
  ```
</ResponseExample>