How can i get change in oi

Hi I am use below api for fetching option data, and in there I want change in OI but there no node available for that can you tell any specific api which can give change in OI.

You will need to integrate with the websocket and monitor updates for Open Interest (OI) changes.

You can find more details on how to get market data feeds here: Upstox API Documentation - Market Data Feed.

To quickly get started with the websocket, refer to the Sample Implementation provided here: Upstox Sample Implementation.