Business · Live

GST Verification API

Validate any GSTIN and fetch taxpayer details in one API call.

From ₹1.20/callPrepaid · billed per successful call

What the GST Verification API does

Our GST Verification API validates an Indian GSTIN against the GST Network and returns the taxpayer’s legal name, trade name, registration status, constitution, address and recent return-filing status — instantly. Route it through one API key with a prepaid wallet; we send it to the cheapest healthy source.

Popular use cases

→Merchant / vendor onboarding for marketplaces and B2B platforms
→Invoice and input-tax-credit validation for accounting software
→KYB (Know Your Business) checks for lending and BNPL

Request

curl -X POST https://apisathi.in/gw/v1/gstin-basic-v1/ \
  -H "X-API-Key: live_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "gstin": "27AAPFU0939F1ZV" }'

Response

{
  "verified": true,
  "legal_name": "…",
  "status": "Active",
  "state": "Maharashtra"
}

Frequently asked questions

How much does the GST verification API cost?

It starts at ₹1.20 per call on a prepaid wallet, billed only on successful lookups. Volume pricing is available.

Is there a sandbox / free trial?

Yes — signup gives a test key that returns sandbox responses, plus starter credits to try live calls.

What data does it return?

Legal name, trade name, GST status, constitution of business, principal place of business, and return-filing status.

Start using the GST Verification API today

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