How to use GSTZen GSTR-1 API?

  • GSTZen Login

    Log into GSTZen using our JWT Authentication

    Securely login to your GSTZen portal as detailed in the document GSTZen Authentication

  • GST Portal Login using GSTZen

    • Generate OTP

      Using correct GSTIN from your account and GST Portal username, generate OTP as described Generate OTP

    • Establish session to GST Portal

      Using correct GSTIN from your account and OTP generated, login to your GST Portal Login to GST Portal


    • Check GSTN Session (Optional)

      To check whether the portal session is active or not, you can ping our api and check Check GSTN Session

  • Download/Upload GSTR-1 data using GSTZen APIs

    By providing GSTIN, api-type and month of returns, download or upload GSTR-1 data. Check the sidebar for all GSTR-1 APIs available in GSTZen

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