ARES (Czech business registry) MCP Server

MCP server for ARES — the Czech business registry. Validate IČO/DIČ, look up companies, statutory bodies, trade licenses and addresses directly from Claude Desktop, Claude Code, Cursor and any other…

Local serverstdioMIT

What is the ARES (Czech business registry) MCP Server?

Ares (czech Business Registry) Mcp — Ares Mcp is an MCP project maintained in the milos106/ares-mcp repository. The maintainer describes its purpose as “MCP server for ARES — the Czech business registry. Validate IČO/DIČ, look up companies, statutory bodies, trade licenses and addresses directly from Claude Desktop, Claude…”. Read the project documentation for the complete scope.

Installation

The documented npm package is @milos106/ares-mcp. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.

Source

Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
ares_validate_icoMod-11 checksum validation. No network call.
ares_lookup_companyAggregated company profile by IČO.
ares_search_companiesStructured search by name, postcode, NACE, legal form.
ares_get_statutory_bodiesDirectors, board, partners (from VR).
ares_get_trade_licensesTrade licenses (from RŽP).
ares_check_vat_payerVAT-payer status with optional DIČ cross-check.
ares_standardize_addressCanonicalize a free-form address via RÚIAN.
ares_lookup_cz_naceCZ-NACE classification lookup.
ares_cross_company_personsGiven 2–50 IČOs, find persons who hold active statutory roles in two or more of them. Returns JSON + Mermaid graph.
ares_search_by_addressFind all entities at a given address. Flags virtual offices / shell-address concentrations.
ares_get_res_classificationStatistical classification from RES — size bracket, ESA 2010 sector, NUTS region.
ares_check_insolvenciFast red-flag: is the entity currently in insolvency proceedings (IR) or marked as bankrupt (CEÚ)?
ares_full_due_diligenceOne-shot DD report — profile + statutary + licenses + VAT + insolvency + 🟢🟡🔴 risk flag + Markdown summary.
ares_export_for_invoicingTransform an ARES profile into a Fakturoid / iDoklad / Pohoda payload ready for invoicing systems. Pure transformation — no calls to the target system.

How to install the ARES (Czech business registry) MCP Server

{
  "mcpServers": {
    "ares": {
      "command": "npx",
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ]
    }
  }
}

From the project documentation. Replace placeholders and example paths before connecting.