# Fetch GSTR-3B Summary Return Details for GST API | FastKYC

> Retrieve GSTR-3B summary return details for a GSTIN and return period, showing declared tax liability and credit for compliance and credit checks.

Source: https://www.fastkyc.com/apis/get-3b-data/

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[Identity](/apis/identity/)

# Get 3B Data API

Retrieve GSTR-3B summary return details for a GSTIN and return period, showing declared tax liability and credit for compliance and credit checks.

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Overview

## What the Get 3B Data API does

Get 3B Data returns the GSTR-3B details filed for a GSTIN and return period. GSTR-3B is the summary return declaring tax liability and input tax credit claimed.

Filing behaviour on 3B is a strong business health signal. A business that files consistently is operating and organised; extended gaps suggest distress, which is directly relevant if you are lending to them.

## Built for

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

Use cases

## Where teams use the Get 3B Data API

-   Assessing a business borrower's filing consistency
    
-   Verifying declared turnover against filings
    
-   Reconciling summary returns against detailed records
    
-   Monitoring compliance across a supplier base
    

## Frequently Asked Questions (FAQs)

## Related APIs

-   [Get 2A Data APIRetrieve GSTR-2A B2B invoice details by GSTIN and return period to reconcile input tax credit against what your suppliers have actually filed.](/apis/get-2a-data/)
-   [Get 2B Data APIRetrieve GSTR-2B ITC and reversal document details by GSTIN and return period, for accurate input tax credit computation and GST reconciliation.](/apis/get-2b-data/)
-   [Get 1A data APIRetrieve GSTR-1A B2B invoice details for a GSTIN and return period, giving your GST reconciliation workflow the amendments a supplier has filed.](/apis/get-1a-data/)
-   [DIN Basic APIValidate a Director Identification Number and retrieve the director's profile details from MCA records, confirming who actually runs a company.](/apis/din-basic/)

## Start verifying with the Get 3B Data 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/)