Use cases · for developers and people building AI agents

CIN lookup API for Indian companies, with an MCP server

Last updated 2 November 2026 · by Venu Gopal Reddy Muvva, founder

IndianFirmData is an Indian company data API built from public registries, with an MCP server so Claude, Cursor or any agent can look companies up. Send a CIN to GET /api/v1/companies/enrich?cin=<CIN> and you get the matched company with the source, licence and freshness of every field; checking and decoding any CIN is free. The index today covers NSE-listed companies, GLEIF LEI holders and Wikidata, not every registered company; CINs come from GLEIF records. If you need MCA details and directors for any private company, a KYC vendor such as Surepass is the better pick.

Steps in IndianFirmData

1. Create a free account and an API key
Sign up with your name, email and a password, no card. Create a key in Dashboard → API keys.
2. Check the CIN for free
GET /api/v1/identifiers/decode?value=<CIN> says whether the CIN is well formed and decodes it: listed or unlisted, industry code, state, year of incorporation and company class. It costs 0 credits.
3. Enrich by CIN
GET /api/v1/companies/enrich?cin=<CIN> returns the company record: name, status, address, industry, LEI, ISIN, NSE symbol and Wikidata id where linked, how each link was made and with what confidence, and the source and age of every field. A match costs 1 credit; no match costs nothing.
4. Or let your AI agent do it
Connect the MCP server at https://indianfirmdata.com/api/mcp with your key. The agent calls decode_identifier or enrich_company and quotes the sourced record instead of guessing.

How it differs from KYC verification APIs

Most Indian APIs that take a CIN or GSTIN are KYC and KYB verification products, built to check one customer during onboarding and sold through a sales team. IndianFirmData is a company data API: every field says which public registry it came from, under which licence, how many days ago we observed it and whether it is past its freshness limit. Records joined from NSE, GLEIF, Wikidata and the MCA master carry the method and confidence of each link.

It is also built for AI agents. The same data is an MCP server with 16 tools, so an agent can search Indian companies by state, industry or listing, enrich them by CIN, LEI, ISIN, NSE symbol, domain or name, and check IDs, with the source in every answer.

Coverage today

Best covered: companies listed on NSE (main board and SME) and companies with an LEI. The full MCA master is not loaded yet, so most unlisted private companies without an LEI are not in the index. The Data sources page shows live counts per source, so you can check before you build on it. An enrich that finds no match costs nothing.

CIN lookup APIs compared: IndianFirmData, Signzy, Surepass and Zoop

What	IndianFirmData	Signzy	Surepass	Zoop
What it is	Indian company data API, MCP server and dashboard	Global identity verification and compliance platform	Digital identity verification platform for Indian financial services	Verification of individuals and businesses in India
Public price	Yes: free for 3 months, then about ₹1.5 per 1,000 credits at cost (est.)	Not listed publicly	Not listed publicly	Not listed publicly
Start	Self-serve sign-up, no card	Book a demo	Free account form; the team contacts you	Book a demo
CIN / company lookup	Free CIN check and decode; enrich by CIN when the company is in the index	No India CIN or MCA API named	MCA Data APIs (CIN / DIN): company and director details	Lists a CIN verification API
Director (DIN) lookup	No (public business roles from Wikidata only)	Not stated	Yes (DIN API)	Not stated
Search companies by state, industry, listing	Yes, 87 fields or plain English	Not stated	Not stated	Not stated
Source, licence and freshness per field	Yes, every field	Not stated	Not stated	Not stated
MCP server for AI agents	Yes, 16 tools	Not mentioned	Not mentioned	Not mentioned

Competitor facts are from their own public websites, checked 2 Nov 2026: signzy.com (home, India API marketplace, KYB and database-check pages; /pricing returned 404), surepass.io (home, business-verification, mca-data-apis-cin-din, gst-verification-api, get-api-key; /pricing shows no prices) and zoop.one (home, plug-and-play APIs, sitemap; /pricing returned 404). "Not stated" means we did not find it on those pages, not that the product cannot do it. Signzy, Surepass and Zoop are trademarks of their owners. IndianFirmData is not affiliated with, endorsed by or sponsored by any of them. Tell us if anything is out of date: [email protected].

When IndianFirmData is not the right tool

If you need MCA master data, directors (DIN) or filings for any private company today, pick a vendor with an MCA API: Surepass lists MCA Data APIs by CIN and DIN. If you need person KYC (Aadhaar, CKYC) under the same contract, look at Signzy or Zoop. IndianFirmData does not have the full MCA master, director lists or filings yet.

Questions

Is there a free CIN lookup API?

Checking and decoding any CIN is free, always (0 credits). Enriching a company by CIN costs 1 credit per match and nothing when there is no match, and the first 3 months are free with no card.

Can Claude or Cursor look up an Indian company by CIN?

Yes. Add the MCP server at https://indianfirmdata.com/api/mcp with your API key. The agent calls enrich_company or decode_identifier and gets the record with its sources.

Does it return the company's directors?

Only public business roles from Wikidata (GET /api/v1/companies/{id}/people), not the MCA director list.

Do Signzy, Surepass or Zoop publish their prices?

Not on their public websites when we checked on 2 Nov 2026. Each asks you to book a demo, contact sales or fill in a form.

Try it on a company you know.

Start free — 3 months on us