Can I verify a GSTIN in bulk?

Yes. The same endpoint serves single and batch use; for vendor-base refreshes the practical constraint is your rate limit and the upstream's availability rather than the API shape. Discuss expected batch sizes with us so limits are set appropriately.

What is the difference between GST verification and GST certificate OCR?

GST verification checks the GSTIN against GSTN records and returns the current registered status. GST certificate OCR reads the fields off an uploaded certificate image. A certificate is a point-in-time document; verification tells you whether the registration is active today.

Does a valid GSTIN mean the business is legitimate?

It means the registration exists and is in the state the record says. It is evidence, not a conclusion. Pair it with company verification for registered entities and with the filing signals for trading activity before treating it as a green light.

GST Verification API — GSTIN Lookup & Validation

API Category · Tax & Compliance

Confirm a GSTIN is real, active and belongs to the business in front of you — and find the registrations a PAN holds that the customer did not mention.

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In short

A GST verification API validates a GSTIN against GSTN records and returns the registered legal name, trade name, registration status and jurisdiction. FinHub also resolves every GST registration held against a PAN, which matters because one business can hold a separate registration in each state it operates in.

Validate a GSTIN and return legal name, trade name and status
Resolve all GST registrations held against a single PAN
Filing and compliance signals for credit assessment
Consent artefact on every call and a tamper-evident audit trail

4 APIs

Every API in GST Verification

One integration, one authentication and one response shape across the whole category.

GST VerificationBusiness · KYB

PAN to GSTBusiness · KYB

GST AdvancedGST Verification

GST to ContactGST Verification

Reference

What each API returns

The endpoint and the fields that come back, so you can size the integration before you write any code.

API	Endpoint	Key fields returned
GST Verification	POST /v1/business/gst/verify	Legal & trade name · Registration status · Taxpayer type & jurisdiction · Filing status / recency
PAN to GST	POST /v1/kyb/pan-to-gst	List of linked GSTINs · Entity legal name · GST status (active/inactive/suspended) · State code per GSTIN
GST Advanced	POST /v1/gst/advanced	Basic details · Hsn codes · Branch details · Filing history · Liability paid summary
GST to Contact	POST /v1/gst/gst-to-contact	Registered email · Registered mobile · Entity name · Match status

Why does one business have more than one GSTIN?

GST registration is state-wise. A business operating in four states holds four GSTINs, all built on the same PAN. This surprises teams who assume a GSTIN identifies a business the way a CIN does.

It matters for underwriting. If you validate the single GSTIN a customer supplied, you have verified one state's operation. Resolving from the PAN instead shows you the full footprint — including registrations in states the customer did not mention, which is often the more informative answer.

What does GST data tell you about a borrower?

For MSME lending, GST is frequently the most current view of a business you can get. Financial statements are annual and lag; GST filing is periodic and reflects recent trading.

Registration status and filing regularity are the signals that carry. A registration that has been suspended or cancelled, or a filing history with gaps, is a legitimate input to a credit decision — and it is verifiable against the source rather than self-declared.

Treat it as one input among several. A business can be entirely healthy and file late, and a registration in good standing says nothing about the quality of the receivables behind it.

Terms

Terms worth getting right

The distinctions that decide whether a flow stands up under examination.

GSTIN: A 15-character Goods and Services Tax Identification Number: two digits of state code, the entity's ten-character PAN, an entity number for that state, a fixed character and a checksum.
Legal name vs trade name: The legal name is the registered entity name; the trade name is what the business operates as. They frequently differ, and matching against only one is a common source of false mismatches.

FAQ

GST Verification — common questions

Yes. FinHub by Habilelabs provides GST verification APIs — GSTIN validation, PAN-to-GST resolution, extended GST detail and contact resolution — for lending, vendor onboarding and compliance workflows in India.

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