Confirmed the app is linked to ZP0387 Confirmed the API key in the Developer Console Paused and reactivated the app Tested from a fresh Chrome Incognito session Confirmed the login URL format is correct
Interestingly, the same app successfully authenticated earlier and I was able to retrieve historical 30-minute ASHOKLEY data. The API key subsequently started returning Invalid api_key.
Please check whether the API key/app state needs to be refreshed or synchronized on the backend.