To access E-Way billing through APIs, the taxpayer has to create API credentials on the E-Way Bill portal. The API credentials are to be passed in the E-Way Bill Authentication API to generate the 6-hour access token.
Steps to create API credentials
Step 1 - Log in to your Account on https://www.ewaybillgst.gov.in/Login.aspx.
Step 2 - Navigate to API registration for GSP. On clicking "For GSP", you will be receiving an OTP, which needs to be entered to proceed further.
Step 3 - Once you enter the OTP, you can click on "Add/New GSP" and select the GST Provider. In this case, add "Vay Network Services Pvt. Ltd.".
Step 4 - Enter the username and password and then click on "Add".
Step 5 - After clicking Add, you will be able to see the list of GSP registered. Use this Username and password in the E-way bill Authentication APIs.