@Kartik-Upadhyay Thank You so much Kartik for faster reply. I kept USER , WEB as it is and LOCAL ip/mac id through ipconfig/all and took public ip through google by search "my ip" but still getting below error in Postman software : Status : 200ok { "success": false, "message": "Invalid Token", "errorCode": "AG8001", "data": "" } For your kind information , I did not enter anywhere my client id and password. I have used below info in postman software : https://apiconnect.angelbroking.com/rest/secure/angelbroking/order/v1/getLtpData Type : POST and body below : { "data": { "exchange":"NSE", "tradingsymbol":"SBIN-EQ", "symboltoken":"3045" } } Please check it if possible.