GSTN (via GSP)Taxation & GSTReady to ship

GSTN Returns API Integration

Validate GSTINs and file/track GST returns through our authorised GST Suvidha Provider gateway.

Provider
GSTN (via GSP)
Version
v1.3
Uptime
99.91%
Latency
470 ms
Access
Licensed
GSPReturnsGSTR

What GSTN Returns API integration does

GSTN integration covers two distinct jobs: validating a GSTIN and its associated legal name, and preparing, filing and tracking GST returns. Both run through an authorised GST Suvidha Provider gateway, which is a licensing position rather than a technical one — direct GSTN access is not open to arbitrary integrators.

GSTIN validation is the cheaper and more universally useful half. Checking a counterparty's GSTIN and legal name before onboarding them is the single most effective control against the input-credit disputes that surface months later, when correcting them is expensive. Return filing is the heavier engagement: pulling invoice data from your billing system, preparing the return payload, filing through the GSP and tracking status, so that a month-end scramble becomes a scheduled job.

Aeologic operates as an authorised GSP, so your integration is against our endpoints and the accreditation stays with us.

What teams build with it

Counterparty verification

Validate GSTIN and legal name at vendor or customer onboarding, before the first invoice rather than after a credit dispute.

Automated return filing

Prepare and file GSTR returns directly from your ERP or billing system on a schedule.

Filing status tracking

Track submission and acknowledgement status programmatically rather than logging into a portal to check.

Input credit reconciliation

Reconcile purchase records against counterparty filings to identify credits at risk.

Endpoints included

  • GET/gst/v1/taxpayer
    Returns registration details for a GSTIN.

Try it in the sandbox

Returns registration details for a GSTIN.
GEThttps://sandbox.aeologic.io/gst/v1/taxpayer
Requestapplication/json
{
  "gstin": "29ABCDE1234F1Z5"
}
Response
Run the sample to see a live response
Returns masked / synthetic data in Sandbox

What you need before we start

  • Your GSTIN and authorisation for filing on your behalf
  • Invoice data in a form the return payload can be built from
  • A defined filing calendar and approval step before submission

How we deliver it

  1. Scoping of validation-only versus full filing
  2. Sandbox integration and payload mapping from your billing data
  3. Approval workflow before any live filing is submitted
  4. Production filing with status tracking and failure alerting

Related Taxation & GST integrations

Solution bundles that use it

GSTN Returns API integration — FAQs

Do we need our own GSP licence?

No. Filing runs through Aeologic's authorised GST Suvidha Provider gateway, so you integrate against our endpoints rather than pursuing GSP accreditation.

Can we start with GSTIN validation only?

Yes, and most customers do. Validation is quick to deploy and independently valuable; return filing is added later as a separate scope.

Who handles GST scheme changes?

Aeologic absorbs schema and scheme changes as part of the engagement, so your integration contract stays stable while the upstream payload changes.

Ship GSTN Returns in days

Tell us your stack and we'll wire up GSTN Returns API integration for your team.

Talk to Aeologic