>Thank you.
>I am able to open the browser, but after I give the user id and password an error is shown ( screenshot attached)
>
>I am finding difficulty to integrate the vfp and API.
>

According to this page - https://kite.trade/docs/connect/v3/exceptions/ - an error of type InputException "[r]epresents missing required fields, bad values for parameters etc."

That is, some data you're sending in your API call is not being accepted (and, if I understand it correctly, it is not a VFP integration problem).

In next messages, please avoid using screenshots unless strictly necessary. It's preferable to paste here the error message. It's just text.