As you guys are providing tick by tick charts to traders, we would like to request for 1 Second OHLCV data which is available on trading charts as 1 sec timeframe charts. You guys already have the needed data then why not provide same on API(intraday historic api).
Thank you for reaching out and for sharing your feedback. We understand the need for more granular data and appreciate your interest in enhanced timeframes.
Currently, the API supports 1-minute OHLCV data for intraday historical use. Providing data at intervals lower than 1 minute (such as 1-second OHLCV) via the API could significantly increase the load on our servers.
For this reason, we are unable to support sub-minute OHLCV data through the API at this time. We recommend using the available 1-minute data for your analysis and strategies.
Thank you for your understanding and for being part of the Upstox developer community.
Have a great day ahead!