--- title: "IndiaCos vs GSTZen: API and pricing compared (2026)" url: https://jurisgrid.com/compare/indiacos-vs-gstzen/ reviewed: 2026-11-11 type: comparison sector: company-data --- # IndiaCos vs GSTZen: which GST verification API is better in India? Reviewed: 11 Nov 2026 · Sector: Company and GST Data ## Short answer IndiaCos is the stronger pick for developers, ops teams and AI agents: it has a public API, an MCP server, public per-call prices and self-serve sign-up. GSTZen shows a public API, published prices and self-serve sign-up but not a public MCP server. Pick GSTZen for GST return filing, reconciliation and vendor filing status with GSTIN validation. - Pick IndiaCos for GST, PAN-to-GSTIN, director and court case data by API and MCP at a flat per-call price. - Pick GSTZen for GST return filing, reconciliation and vendor filing status with GSTIN validation. ## Key facts - **IndiaCos:** IndiaCos is a company and GST data provider with a public API and MCP server: public REST API, public MCP server, pricing ₹0.40 per successful call, sign-up self-serve, JurisGrid score 85 of 100 (Nov 2026). - **GSTZen:** GSTZen is a company and GST data provider with a public API: public REST API, no public MCP server found, pricing pay per call, public prices, sign-up self-serve, JurisGrid score 38 of 100 (Nov 2026). ## How do IndiaCos and GSTZen score? IndiaCos scores 85, GSTZen scores 38 out of 100. The gap is 47 points. | Criterion | Weight | IndiaCos | GSTZen | |---|---|---|---| | Data coverage and depth | 20 | 4 of 4 | 1 of 4 | | Freshness and update cadence | 12 | 2 of 4 | 0 of 4 | | API availability | 15 | 4 of 4 | 3 of 4 | | MCP and agent readiness | 13 | 4 of 4 | 0 of 4 | | Pricing transparency | 12 | 4 of 4 | 3 of 4 | | Self-serve sign-up and free trial | 10 | 4 of 4 | 2 of 4 | | Documentation and developer experience | 8 | 3 of 4 | 2 of 4 | | Track record and trust | 5 | 0 of 4 | 0 of 4 | | Product depth beyond data | 5 | 2 of 4 | 3 of 4 | | Total score | 100 | 85 | 38 | ## Which features does each one have? | Feature | IndiaCos | GSTZen | |---|---|---| | Court record check | Partial | Not published | | Company master data | Yes | Not published | | GST lookup | Yes | Yes | | Director data | Yes | Not published | | Trademarks | Yes | Not published | | Charges and defaulter lists | Yes | Not published | | REST API | Yes | Yes | | MCP server | Yes | Not published | | Bulk export | Partial | Not published | | OpenAPI specification | Yes | Not published | | OAuth sign-in | Yes | Not published | | Free credit or free tier | Yes | Not published | | Pay per call pricing | Yes | Yes | | Self-serve sign-up | Yes | Yes | | Public pricing | Yes | Yes | ## How much do IndiaCos and GSTZen cost? | Pricing | IndiaCos | GSTZen | |---|---|---| | Pricing model | Pay per call | Pay per call | | Public price | INR 0.40 per successful call; errors, not-found and refused calls are free. Prepaid top-ups of INR 500, INR 5,000 and INR 50,000 plus 18% GST. No subscription. | Pay as you go: INR 5 per API call; INR 5 per 100 records of API data transfer (free allowance stated inconsistently); GSTIN number validator free; package plans priced on request. | | Free tier | INR 50 free credit on signup, no card needed | Not published | | Minimum commitment | None: prepaid wallet, no subscription | Not published | | Source | https://indiacos.com/api | https://gstzen.in/pricing-tax-practitioner | ## Do IndiaCos and GSTZen have an API and an MCP server? | Access | IndiaCos | GSTZen | |---|---|---| | REST API | Public REST API: https://indiacos.com/api/v1 | Public REST API | | MCP server | Public MCP server: https://indiacos.com/mcp | Not published | | Authentication | Bearer API key or X-API-Key; OAuth 2.1 for the MCP server | Not published | | Docs | https://indiacos.com/api/docs | https://gstzen.in | | Sign-up | Self-serve | Self-serve | | Free tier | INR 50 free credit on signup, no card needed | Not published | | Rate limits | Not published | Not published | ```bash # Company master data by CIN curl -s "https://indiacos.com/api/v1/company/{CIN}" \ -H "Authorization: Bearer $INDIACOS_API_KEY" # GST registration by GSTIN curl -s "https://indiacos.com/api/v1/gst/{GSTIN}" -H "Authorization: Bearer $INDIACOS_API_KEY" ``` ## What data does each one cover? **IndiaCos** - Companies and LLPs: 32,85,193 companies and 5,95,467 LLPs (as of Nov 2026) - GST registrations: 67,05,270 registrations; full details for GSTINs registered 2025-01-01 to 2026-05-31 (as of Nov 2026) - Intellectual property: 34,76,034 trade marks, 10,90,748 patent applications, 2,05,377 designs and 2,78,307 copyrights (as of Nov 2026) - MSMEs and defaulters: 4,66,88,220 MSME records (loading continues state by state) and 7,21,017 defaulter entries (as of Nov 2026) - Data dates: Directors, charges and GST filings refreshed 23 Oct 2026; MCA monthly lists to 2026-08-31; company master date differs per company (as of Nov 2026) **GSTZen** - Checks and data types listed: GSTIN validation, e-invoices, vendor filing status, GST returns and reconciliation (as of Nov 2026) ## Which one should you choose? ### Choose IndiaCos if - you want company, LLP, GST, director, charge and court case records through one key and one per-call price - you want AI agents to call company data through a public MCP server with OAuth and an agent sign-up flow - you want a flat INR 0.40 per successful call, with errors and not-found calls free, and INR 50 free credit before you pay - you need to go from a PAN to all linked GSTINs, or from a company name to its trade marks, patents and defaulter entries Skip it if you need audited financial statements or a fixed annual fee with a contract: IndiaCos is a prepaid per-call service built from public records, and its company master date differs by company. ### Choose GSTZen if - you want GST return filing, reconciliation and vendor filing status reports in one platform - you want a free GSTIN number validator and a published INR 5 per API call rate - you want Tally and Excel integrations beside the API Skip it if you need PAN to GSTIN, company, director, court case or defaulter data, or a public MCP server: these were not found for GSTZen in this review. ## Frequently asked questions ### Which is better for GST verification, IndiaCos or GSTZen? IndiaCos is the stronger choice for developers, ops teams and AI agents that need GST verification by API: it has a public API, an MCP server, public per-call prices and self-serve sign-up. GSTZen shows a public API, published prices and self-serve sign-up but not a public MCP server. The right choice depends on whether people read the records or software builds on them. ### Does GSTZen have an API or an MCP server? GSTZen links API documentation and lists an API for e-invoices and GSTIN validation. No public MCP server was found for GSTZen. IndiaCos offers a REST API at indiacos.com/api/v1 with an OpenAPI 3.1 spec and an MCP server at indiacos.com/mcp with OAuth 2.1 sign-in, and one prepaid wallet pays for both. ### How much does GSTZen cost compared with IndiaCos? GSTZen lists INR 5 per API call on its pay as you go page, with a free GSTIN number validator and package plans priced on request. IndiaCos charges INR 0.40 per successful call. IndiaCos charges INR 0.40 per successful call, with errors and not-found calls free, INR 50 free credit and no subscription. Always check each provider's pricing page before you commit, since prices change. ### Can an AI agent use GSTZen or IndiaCos? Yes, an AI agent can use IndiaCos: it runs a public MCP server with 25 tools covering companies, GST, directors, court cases and IP records. GSTZen shows no public MCP server in this review, so an agent would need a custom wrapper around its API or sales-issued access. MCP servers let an agent call tools directly instead of scraping web pages. ### When should you choose GSTZen instead of IndiaCos? Choose GSTZen when you want GST return filing, reconciliation and vendor filing status reports in one platform. It is also a good fit when you want a free GSTIN number validator and a published INR 5 per API call rate. Choose IndiaCos less readily when you need audited financial statements or a fixed annual fee with a contract: IndiaCos is a prepaid per-call service built from public records, and its company master date differs by company. ### What data does IndiaCos cover compared with GSTZen? IndiaCos covers 32,85,193 companies, 5,95,467 LLPs and 67,05,270 GST registrations, with directors, charges, court case summaries, 4,66,88,220 MSME records and 7,21,017 defaulter entries. As published, GSTZen lists GSTIN validation, e-invoices, vendor filing status, GST returns and reconciliation. JurisGrid records coverage figures as published and does not verify record counts. Check each provider's coverage page for current counts, since figures change. ## Related - [IndiaCos profile](https://jurisgrid.com/providers/indiacos/index.md) - [GSTZen profile](https://jurisgrid.com/providers/gstzen/index.md) - [Best company data APIs in India](https://jurisgrid.com/best/company-data-api-india/index.md) - [GSTZen vs Masters India vs IndiaCos](https://jurisgrid.com/compare/gstzen-vs-masters-india-vs-indiacos/index.md) - [AuthBridge vs Signzy vs IndiaCos](https://jurisgrid.com/compare/authbridge-vs-signzy-vs-indiacos/index.md) - [Dun & Bradstreet India vs EasyLeadz vs IndiaCos](https://jurisgrid.com/compare/dun-bradstreet-india-vs-easyleadz-vs-indiacos/index.md) - [Methodology](https://jurisgrid.com/methodology/index.md)