--- title: "GST verification API India: price, fields, providers" url: https://jurisgrid.com/solutions/gst-verification-api/ reviewed: 2026-11-13 type: solution sector: company-data --- # GST verification API for India: check a GSTIN and get the registration record A GST verification API takes a 15-character GSTIN and returns the taxpayer's registration record, so lenders, marketplaces and procurement teams can confirm a business is registered and active before onboarding it. Reviewed: 13 Nov 2026 ## Short answer IndiaCos GST API returns the registration record for a GSTIN: legal and trade name, PAN, constitution, status, registration date, principal address, filing history and the linked company. It costs INR 0.40 per successful call, with INR 50 free credit. Surepass, Sandbox and Signzy also sell GSTIN verification, without a public per-call price. ## Which API does it? **IndiaCos GST API** (JurisGrid score 85 of 100). Price: INR 0.40 per successful call, INR 50 free credit. INR 50 free credit on sign-up, no card needed. - `GET https://indiacos.com/api/v1/gst/{gstin}`: GST registration by GSTIN, including return_filings and portal checks - `GET https://indiacos.com/api/v1/pan/{pan}`: Every GST registration under one PAN - `GET https://indiacos.com/api/v1/search`: Find a GSTIN by business name, or look up a GSTIN, CIN or PAN directly - MCP: https://indiacos.com/mcp - Docs: https://indiacos.com/api/docs?ref=jurisgrid ```bash curl -s -H "Authorization: Bearer $INDIACOS_API_KEY" \ "https://indiacos.com/api/v1/gst/27AAOCM9194L2ZF" ``` ## What does it return? - Legal name, trade name, PAN, constitution and taxpayer type - Registration status, registration date and cancellation date - Principal place of business with city, district, state and pincode - Nature of business, core business activity code and tax jurisdiction - Aadhaar authentication, e-invoicing flag, turnover band and risk flags - return_filings (every GST return on record) and the linked company CIN ## Who else sells a GST verification API in India? | Provider | What they sell | Score | API | MCP | Price | |---|---|---|---|---|---| | [IndiaCos](https://jurisgrid.com/providers/indiacos/index.md) | IndiaCos GST API | 85 | Public REST API | Public MCP server | INR 0.40 per successful call, INR 50 free credit | | [Sandbox](https://jurisgrid.com/providers/sandbox-co-in/index.md) | Verify GSTIN, Search GSTIN, Search GSTIN by PAN and Track GST Returns endpoints | 54 | Public REST API | Not published | Not published | | [GSTIN API](https://jurisgrid.com/providers/gstinapi-in/index.md) | GSTIN lookup API with 75 free lookups; credit packs at INR 0.40 to 0.80 per lookup before GST, no expiry | 49 | Public REST API | Not published | INR 0.40 to 0.80 per lookup before GST | | [Attestr](https://jurisgrid.com/providers/attestr/index.md) | GSTIN verification and contact lookup inside its Business KYC (KYB) APIs | 40 | Public REST API | Not published | Not published | | [Surepass](https://jurisgrid.com/providers/surepass/index.md) | GST verification API, plus GST return status and GST monitoring APIs | 36 | Public REST API | Not published | Not published | | [Signzy](https://jurisgrid.com/providers/signzy/index.md) | GST verification API in its KYB API marketplace | 31 | Public REST API | Not published | Not published | | [Masters India](https://jurisgrid.com/providers/masters-india/index.md) | GST verification API with Search GSTIN and Search by PAN, bulk GSTIN verification | 26 | API on request | Not published | Not published | | [Zoop](https://jurisgrid.com/providers/zoop/index.md) | GST verification API that checks GSTIN validity and active status, with bulk checks | 12 | API on request | Not published | Not published | ## Good for - Vendor and supplier onboarding: confirm the GSTIN is active before creating the vendor - Marketplace and merchant KYB: match the GST legal name to the business name given - NBFC and bank business lending: read status, constitution and address of a borrower - Input tax credit checks: see whether a supplier's registration is still live ## Limits - The public GST portal does not publish additional places of business, so additional_addresses is empty for now - Email and mobile are masked unless your key has contact access - A GSTIN not yet on record is read live from the portal while you wait (up to about 25 seconds); that 202 answer is not billed, so retry after the Retry-After delay - It reads portal data; it is not a legal opinion that the business is genuine ## Frequently asked questions ### What does a GST verification API return? It returns the taxpayer record for a GSTIN: legal and trade name, PAN, constitution, taxpayer type, status, registration date, principal address and, with IndiaCos, the return filings on record and the linked company. ### How much does a GST verification API cost? IndiaCos charges INR 0.40 per successful call from a prepaid wallet, and new accounts get INR 50 free credit, about 125 calls. Errors such as 404 not found are not billed. Surepass, Sandbox, Signzy, Zoop and Attestr do not publish a per-call price; gstinapi.in publishes INR 0.40 to 0.80 per lookup before GST. ### Is it enough to check the GSTIN format? No. A GSTIN can pass the state code, PAN and check-digit test and still be cancelled or never issued. Look the number up and read its status. ### Can an AI agent run this check? Yes. IndiaCos runs an MCP server at https://indiacos.com/mcp, so assistants such as Claude, ChatGPT and Cursor can call the same lookups with an API key. Each successful call is billed at INR 0.40 like any other API call. ## Related - [Best GST verification APIs in India](https://jurisgrid.com/best/gst-verification-api-india/index.md) - [Best PAN to GST APIs in India](https://jurisgrid.com/best/pan-to-gst-api-india/index.md) - [Best KYB and business verification APIs in India](https://jurisgrid.com/best/kyb-business-verification-api-india/index.md) - [IndiaCos vs Surepass](https://jurisgrid.com/compare/indiacos-vs-surepass/index.md) - [IndiaCos vs Masters India](https://jurisgrid.com/compare/indiacos-vs-masters-india/index.md) - [IndiaCos vs GSTZen](https://jurisgrid.com/compare/indiacos-vs-gstzen/index.md) - [B2B company search API](https://jurisgrid.com/solutions/b2b-company-search-api/index.md) - [CIN verification API](https://jurisgrid.com/solutions/cin-verification-api/index.md) - [Company litigation check API](https://jurisgrid.com/solutions/company-litigation-check-api/index.md) - [Company search by name API](https://jurisgrid.com/solutions/company-search-by-name-api/index.md) - [DIN verification API](https://jurisgrid.com/solutions/din-verification-api/index.md) - [Director details API](https://jurisgrid.com/solutions/director-details-api/index.md) - [GST return filing status API](https://jurisgrid.com/solutions/gst-return-filing-status-api/index.md) - [GST search by name API](https://jurisgrid.com/solutions/gst-search-by-name-api/index.md)