Welcome to MasterGST Developers community and this portal intended and specifications are related to GST APIs. This portal will also host sample code and sandbox information and will be a one stop shop for developer's, who wanted to build innovative application for Tax payers. Please signup to get your own public keys.

MasterGST Sandbox Information :
Note : Please Enter Email Id, User Client Id, User Client Secret for get Response Messages.
Email id : info@mastergst.com
Client id : 385b9557-1e80-4730-9c4f-82a2257e025c
Client secret : f9abfd20-2ffb-4d49-9cc4-94d995af58db
How to Start:
  1. Create GSTN Sandbox Account (Please select GSP as "Tera Software Limited" ) - Click here
  2. Sign-up with MasterGST - Sing up
  3. Login -> Credentials -> Create Credentials
  4. Once you receive the Sandbox Details from GSTN User GSTN Username & GSTNID along with MasterGST API Credentials.
  5. GSTN API Support Forum : Click here

Enabled APIs Signup

Some APIs enable automatically
Base URL : api.mastergst.com

Additional Help : Please follow us on GSP/ASP Google Group

To Create GSTN Sandbox Account click here

IMPORTANT NOTICE: These are initial versions of APIs and are subject to change as GST system is still evolving and still in implementation phase. Developer community will be informed about such changes through announcements through our portal and notifications.