# VAT and TIN Number Verification for Businesses API | FastKYC

> Verify a Taxpayer Identification Number and retrieve dealer registration details, CST status and address information, for vendor and dealer checks.

Source: https://www.fastkyc.com/apis/tin-verify/

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[Identity](/apis/identity/)

# TIN Verification API

Verify a Taxpayer Identification Number and retrieve dealer registration details, CST status and address information, for vendor and dealer checks.

[Book a Demo](/book-demo/)

Overview

## What the TIN Verification API does

TIN Verification checks a Taxpayer Identification Number and returns the dealer's registration details, CST status, address and related registration information.

TIN belongs to the pre-GST VAT regime, and it still appears in older records and legacy contracts. Being able to verify it matters when you are reconciling historical documentation rather than onboarding fresh.

## Built for

[Marketplaces & E-commerce](/industries/marketplaces/)

Use cases

## Where teams use the TIN Verification API

-   Verifying dealer registration in legacy records
    
-   Reconciling pre-GST documentation
    
-   Confirming historical registration details
    
-   Validating older vendor records during cleanup
    

## Frequently Asked Questions (FAQs)

## Related APIs

-   [DIN Verify APIRetrieve detailed director information including personal details, DIN status and linked entities, using PAN, DIN or KID.](/apis/din-verify/)
-   [Ecourt CNR Search APIRetrieve detailed court case information from an eCourt CNR number, covering case status, parties and hearing history, for litigation and risk checks.](/apis/ecourt-cnr-search/)
-   [Fastag Lookup APIRetrieve FASTag information for a vehicle, including tag status and the details registered against it, for vehicle verification and fleet onboarding.](/apis/fastag-lookup/)
-   [PAN Comprehensive APIRetrieve extensive PAN card data for an individual, covering identity details, status and linked information in one call.](/apis/pan-comprehensive/)

## Start verifying with the TIN Verification API

Book a walkthrough and we will show the call, the response and how it fits your onboarding flow.

-   One API key for every check
-   Verified against official Indian records
-   Built for onboarding at scale

[Book a Demo](/book-demo/)[Browse All APIs](/apis/)