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    GST Verification API for GSTIN Validation & Business Onboarding

    Verify GSTIN status, legal name, trade name, taxpayer type, registration details, and principal address in real time for vendor onboarding, merchant verification, KYB, and compliance workflows.

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    Starts at ₹0.72 per verification · excl. GSTView Pricing

    Overview

    The GST Verification API enables businesses to validate GSTIN details instantly. It is designed for compliance-driven onboarding, vendor verification, and business identity checks where accuracy and traceability are critical.

    What Can You Verify With GST Verification APIs?

    Key details returned across all GST Verification API endpoints, ready to power your KYC and onboarding workflows.

    GSTIN

    The GSTIN that was verified, echoed back from the government source.

    Is GSTIN Valid?

    True if the GSTIN was found and is a valid registered number; false otherwise.

    GSTIN Status

    Current registration status of the GSTIN (e.g. Active, Cancelled, Suspended).

    Legal Name Of Business

    Official legal name of the business as registered with GST authorities.

    Taxpayer Type

    Classification of the taxpayer (e.g. Regular, Composition, Non-resident, Casual Taxable Person).

    Constitution Of Business

    Legal structure / constitution of the business (e.g. Private Limited Company, Proprietorship, Partnership).

    Date Of Registration

    Date on which the GSTIN was registered (DD/MM/YYYY format).

    Last Update Date

    Date of the most recent update to the GST registration record (DD/MM/YYYY format).

    Cancellation Date

    Date of cancellation of the GST registration, if applicable. Empty string or null for active registrations.

    Nature Of Business Activities

    Comma-separated list of business activity categories as declared during GST registration (e.g. Wholesale, Supplier of Services, Recipient of Goods or Services).

    State Jurisdiction

    State GST authority / jurisdiction under which the GSTIN is registered.

    Principal Place Address

    Principal place of business address as a single formatted string.

    Principal Place Split Address

    Principal place of business address broken into structured components.

    PAN Number

    The PAN submitted in the request, echoed back for reference.

    List of GSTINs

    List of all GSTIN registrations linked to the given PAN. Each element represents one GST registration across a state.

    GSTIN Status

    Current registration status of this GSTIN (e.g. Active, Inactive, Cancelled).

    State of Registration

    Indian state or union territory where this GSTIN is registered.

    Simplified API Preview

    GST Verification API Flow – Sample Request and Response

    Send simple inputs. Get rich, verified data in seconds.

    Verify GSTIN details instantly — legal name, trade name, status, address, and filing metadata — for vendor onboarding and compliance checks.

    REQUEST
    POST /tools/kyc/gstin
    Gstin29ABCDE1234F1Z5
    Business NameAcme Pvt Ltd
    RESPONSE
    200 OK
    GSTIN29ABCDE1234F1Z5
    Is GSTIN Valid?true
    GSTIN StatusActive
    Legal Name Of BusinessAcme Private Limited
    Taxpayer TypeRegular
    Constitution Of BusinessPrivate Limited Company
    Date Of Registration01/07/2017
    Last Update Date01/02/2022
    Cancellation Date
    Nature Of Business ActivitiesWholesale, Supplier of Services, Recipient of Goods or Services
    State JurisdictionKarnataka
    Principal Place Address123, MG Road, Bangalore, Karnataka 560001

    Key Features

    Everything you need to integrate and scale

    Real-Time GSTIN Validation

    Verify GST registration details instantly with structured responses.

    Business Identity Confirmation

    Validate legal business information before onboarding or payouts.

    Automation Ready

    Easily integrate into KYB and compliance pipelines.

    High-Volume Support

    Built to handle large verification volumes reliably.

    Who Should Use This API?

    Marketplaces and B2B platforms
    Fintechs onboarding merchants or vendors
    Enterprises with supplier verification needs
    Compliance-driven organizations

    Primary Use Cases

    Vendor and supplier onboarding
    Merchant verification for platforms
    Compliance and due diligence checks
    B2B onboarding workflows

    How to Integrate

    Get started in minutes with our simple integration process

    1. 1

      Sign Up

      Create an account on Connect App and get your sandbox credentials.

    2. 2

      Submit KYC

      Complete your KYC verification process by submitting the required documents.

    3. 3

      Integrate API

      Use our comprehensive documentation to integrate the APIs.

    4. 4

      Test in Sandbox

      Test your integration thoroughly in our sandbox environment.

    5. 5

      Go Live

      Start verifying GSTIN details in production.

    Frequently Asked Questions

    What details are returned in GST verification?+

    The API returns GSTIN status, legal business name, trade name, constitution of business, taxpayer type, nature of business activities, registration date, last update date, state jurisdiction, and principal place of address.

    Is the data real-time?+

    Yes, GSTIN details are verified in real time against official records.

    Can the API handle high volumes?+

    Yes. The API is designed to handle large-scale volumes reliably without performance degradation.

    How does API authentication work?+

    Every API call is secured with one-time-use tokens generated using asymmetric cryptography. After signing up, you will receive your developer-key and secret-key for both UAT and production environments, which you can use to generate tokens for authenticating your API requests.

    How are errors and failures reported?+

    Every response includes a status code and a human-readable message. Failed requests return specific error codes indicating the reason, so you can handle each case programmatically.

    Is there a sandbox environment for testing?+

    Yes. A full sandbox environment is available immediately on signup. You can test your integration end-to-end before going live — no commitment required.

    How is API usage billed?+

    Usage is billed per successful API call with no minimum commitment. Volume-based pricing tiers are available — contact our team for detailed rates.

    How do I get started?+

    Sign up on Connect App, submit the required documents, integrate the REST API using our sandbox environment, and go live.

    Get API Access

    Sign up now and start integrating in minutes. Our team will help you go live quickly.

    • Sandbox access in minutes
    • Dedicated integration support
    • Comprehensive documentation
    • Reliable, high-volume workflows

    Get GST Verification API Access

    Get started in 10 minutes