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.
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.
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.
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?
Primary Use Cases
How to Integrate
Get started in minutes with our simple integration process
- 1
Sign Up
Create an account on Connect App and get your sandbox credentials.
- 2
Submit KYC
Complete your KYC verification process by submitting the required documents.
- 3
Integrate API
Use our comprehensive documentation to integrate the APIs.
- 4
Test in Sandbox
Test your integration thoroughly in our sandbox environment.
- 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.
Recommended Solution Packs
Pre-bundled API stacks that include GST Verification API, designed for common industry workflows.
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