Option Chain API returning empty data despite NFO access

Developer API
1

Hi Upstox Support,

I’m using the Upstox API for my trading application and facing an issue with the Option Chain API.

Issue: The /v2/option/chain

endpoint returns empty data (

{"status":"success","data":[]}

)
even though:

  • Authentication is successful (valid access token)

  • My account has NFO exchange access

  • Market quotes API (

    /v2/market-quote/quotes

    ) works correctly

API Call Details:

  • URL:

    https://api.upstox.com/v2/option/chain

  • Parameters:

    instrument_key=NSE_INDEX|Nifty 50

    ,

    expiry_date=2026-01-29

  • Response:

    {"status":"success","data":[]}