Introduction

This section introduces the JSON-based APIs provided by Octa for automating workflows with GSTR-3B data. These APIs allow you to fetch filed GSTR-3B data from the Government portal, export it, and download the resulting Excel file, enabling faster and more reliable compliance workflows.

#Company Header

All GSTR-3B APIs require the following HTTP header to identify the company you want to work on.

Octa-Company: <Company-ID>

Company-ID must be specified exactly as displayed in Octa (e.g. oc-xxx).

#How to find Company ID?

You can use the following steps to find your company ID:

• Login to Octa GST
• On the home page, find the company you want to use for APIs
• Click on the Information button, this will display company information
• Check the Company ID