GSTIN API for B2B compliance checks
Verify counterparty GST status before issuing invoices.
Updated 4 Sept 2026
The problem
Finance teams issue invoices to inactive or mistyped GSTINs.
Required capabilities
- Validity + registration fields
- API key auth for backends
Implementation approach
- Verify GSTIN when a customer is created and before first invoice.
- Re-check on material changes to legal name or address.
- Store verification timestamps for audit.
Trade-offs
- Compliance policy may require re-verification on a schedule.
Relevant APIs
Comparisons
Related guides
Next step
Open an API page, try the playground, then create a key when you are ready to integrate.