# ares (slim)

> ares, an MCP server by cz-agents.dev, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Czech & Slovak business registry — company lookup by IČO, name, legal form, VAT. Official ARES.

- Full: https://www.anchorterminal.com/tools/cz-agents-ares.md (~1,000 tokens) · this version ~930 tokens · JSON https://www.anchorterminal.com/tools/cz-agents-ares.json · canonical https://www.anchorterminal.com/tools/cz-agents-ares
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

# ares

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by cz-agents.dev (https://cz-agents.dev)
- Listed because: It's published in the registry under cz-agents.dev, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Czech & Slovak business registry — company lookup by IČO, name, legal form, VAT. Official ARES.

## Facts

- MCP registry: `dev.cz-agents/ares` 0.1.9
- Endpoint: https://ares.cz-agents.dev/mcp (streamable HTTP)
- Package: npm `@czagents/ares` (stdio)
- Source: https://github.com/martinhavel/cz-agents-mcp
- Website: https://cz-agents.dev
- npm downloads a week: 141
- GitHub stars: 6
- Registry entry updated: 2026-06-02

## Tools

- Tools it lists (10, about 1,783 tokens of context, `tools/list` without credentials over MCP 2025-11-25, checked 2026-10-04 22:24 UTC):
  - `lookup_by_ico` (read-only): Get a single Czech company record by its IČO (8-digit Business ID). Returns official name, registered address, legal form, VAT ID (DIČ), founding date, and…
  - `search_companies` (read-only): Search ARES by company name, city, street, PSČ, or NACE code. Combines all filters with AND. Useful when user knows name but not IČO, looking for companies in…
  - `search_by_address` (read-only): Find all companies registered at a given Czech address. Useful for due diligence (virtual offices, shell companies), real estate research, or competitor…
  - `search_by_nace` (read-only): Find Czech companies by CZ-NACE activity code (economic sector classification). Example: "62" = IT, "47" = retail, "86" = healthcare. Optional city filter.…
  - `get_bank_accounts` (read-only): Get transparent bank accounts published for this company (only available for VAT-registered subjects). Useful to verify payment details on an invoice match the…
  - `get_statutaries` (read-only): Get current statutory body (jednatelé, představenstvo, etc.) of a Czech company — who can legally act on its behalf. Returns active members only (with valid…
  - `validate_dic` (read-only): Validate a Czech DIČ (VAT ID). Format check: "CZ" + 8-10 digits. For 8-digit tail (legal entities) also runs MOD11 checksum against the embedded IČO.
  - `check_vat_payer` (read-only): Check whether a Czech company is a registered VAT payer (plátce DPH). If yes, returns DIČ, financial office, and any transparent bank accounts (payment…
  - `get_history` (read-only): Get historical record of a company (previous names, registered address changes, trade license history). Useful for due diligence.
  - `watch_entity` (read-only): Start onboarding for free monitoring of one Czech company by IČO. Stub only — persists nothing yet. Returns structuredContent: status (one of…
- How its tools read to an agent (0 errors, 0 warnings, 1 note, about 1,783 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):
  - note TC24 server: 10 of 10 tools have no outputSchema

- JSON: https://www.anchorterminal.com/api/v1/tools/cz-agents-ares.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming