Public API

The GSTN has made a few APIs available to the Public. These Public APIs do not require the taxpayer's authentication. This means the APIs will fetch details by simply inputting the GSTIN and financial year (in some cases).

Available GST Public APIs

Track GST Return API lets you view E-filled returns. This tool can help buyers check the tax payment status of their suppliers and make claiming the input tax credit (ITC) easier.
Search GSTIN API lets you verify GSTIN in real-time. The API takes the GSTIN and provides you with details associated with it from the GST Portal. If the GSTIN provided is incorrect, then you will get an error message.
Search GSTIN by PAN API You can also retrieve the same information using the PAN of the organization using this API.

API Charges

A successful API call will deduct credit from your Subscribed Quota and an upstream cost will also be deducted from your Sandbox wallet.

API	Quota	Upstream
Track GSTR	Yes	Yes
Search GSTIN	Yes	Yes
Search GSTIN by PAN	Yes	Yes