You need to use request_token to generate access_token, not refresh_token go through the login flow here.

No, to generate a request token you need to login manually to this end-point: https://kite.zerodha.com/connect/login?v=3&api_key=your_api_key

Go through login flow FAQs here.

Go through login flow FAQs here.

There is no option in zerodha kite developer page to login through 2fa, i demanded only ID and PW, is it normal,

By Oct-3, If TOTP is not set, and I am still using old method of entering PIN:

as we don't want manual authenticate process each time when we need to generate login token and to trade.

I hope this mandatory check of TOTP for each order doesn't add delay to order placement.

You can refer to the login flow here.

Which API end-point is throwing this?

I confirmed multiple times that I can login to another account and kite does not validate the api_secret.

curl_setopt($ch, CURLOPT_URL,"https://kite.zerodha.com/api/login");

Is this for public use or for personal?

Are you following the steps mentioned here for access token generation?

#login

You can go through login flow documentation here.

It is mandatory by the exchange that a trader has to log in manually at least once a day. We don't recommend automating the login process.

You are getting the request token in the URL query param. You need to capture that. You can know more about the login flow here.

request_token = " XXXXXX"

Websocket streaming is working fine at our end. Can you paste here the exact error message? Also, make sure you are using the correct access_token. Check out the login flow here.