Historical API is not bundled with Connect as explained on the homepage and within your developer console. We'd disabled authentication on the historical data APIs for a while for legacy/testing reasons, but we re-enabled authentication recently. If you were accessing the historical APIs (without subscribing to it in your developer console), it's not going to work anymore unfortunately.
I have valid subscription, however, from past two days i am getting "Invalid API credentials". However websocket and instruments list works. Why is the problem only with historic data?
@kiranja Once you subscribe for Kite Connect, you can get list of instruments, websocket streaming but not historical data. Historical data is an add on.
@kartik.trade Fron Kite connect developers console enter your apps edit page and on right side you can see option to enable histroical for the given app.
will it come back once testing is over or this is gonna be only for subscribed people ?
and What is the duration for EOD data, is it from, the beginning in History API ?