How to Integrate with E-Invoice

Hi Team ,

Which way is best to integrate e-invoice

Direct API Integration: Integrate directly with the e-Invoice portal via APIs.
GSP (GST Suvidha Provider) Integration: If your ERP system is not directly connected to the government portal, you can integrate via a GSP that provides API access.

install india compliance app

Please give any reference for this ?

For GSP registration in eway bill portal is free or any charges applicable?

no idea
but to use india compliance app irn generation you need to buy credits

Okay , thanks for your reply