How to download an invoice for Kite Connect API charges?

If the Kite API charges are directly paid using the payment gateway on Kite Connect (Razorpay) then the invoice can be downloaded from the payment history on the billing page.

If the Kite API charges are debited from the Zerodha account, the invoice can be downloaded from the console. To learn how to download an invoice from Console, see How to download the GST invoice for the charges posted on the ledger.