mcpbeat Sign in

Czech Company Registry (ARES) Tools MCP Server

by appvantagelabs2-a11y Your server? Claim it
answering

Czech Company Registry (ARES) Tools is answering right now. Last checked 11 min ago. It exposes 6 tools.

Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.

Uptime history 48 days of history · worst day 95%
48 days agonow
100.0%
Uptime 24h
91 of 91 checks
6
Tools
read from the server
296 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 9

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 16 September 2026. No other catalogue keeps this.

24 Oct 2 tool descriptions were rewritten check_vat, entity_status
16 Sep 6 tools changed the parameters they ask for address_check, check_vat, company_lookup and 3 more
16 Sep a tool changed version

Nothing serious here today

Today is the operative word: we check Czech Company Registry (ARES) Tools every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add czid --transport http https://czid.casuyi.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://czid.casuyi.com/mcp
~/.codex/config.toml
[mcp_servers.czid]
url = "https://czid.casuyi.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "czid": {
      "url": "https://czid.casuyi.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "czid": {
      "type": "http",
      "url": "https://czid.casuyi.com/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

company
company_lookup
Basic register (ARES) lookup: name, legal form, registered address, NACE, data-box, VAT DIČ. Input: IČO (8 digits) or DIČ (CZ+10).
search_company
Company-name search in ARES (prefix match, case-insensitive; no wildcards). Returns IČOs + names + addresses for further lookups.
address
address_check
Free-text Czech address -> RÚIAN-standardized (full KOD ADM, codes for obec/část/ulice, correct PSC).
entity
entity_status
KYC-style snapshot: active/cancelled, which registers the entity appears in (VR, RZP, IR insolvency, NRPZS, RCNS, SZR...), plus an insolvency presence flag (IR). Insolvency is presence-only — case detail needs ISIR.
validate
validate_cz
Checksum/format validation: IČO (mod-11), DIČ (CZ+IČO or birth number), IBAN (mod-97, CZ-specific), variable symbol. Pure local, no network.
vat
check_vat
Plátce-DPH status from the ARES RZP record, cross-checked against the ARES DPH source flag. RZP is a HISTORICAL register (records can stop updating in 2016), so a positive here is not proof of current plátcost — the result carries registerState + caution when the two disagree. For a legally binding check use the MOF DPH register (ADISREG). Batch up to 20 IČOs.

Endpoints

URLTransportStateLatencyChecked
https://czid.casuyi.com/mcp streamable-http answering 81 ms 11 min ago

Alternatives to Czech Company Registry (ARES) Tools

same job, measured the same way
Ares
by cz-agents

Czech & Slovak business registry — company lookup by IČO, name, legal form, VAT. Official ARES.

116 installs/wk 11 tools answering
French Companies Registry Data
by corent1robert

French company data by SIREN or search: address, NAF code, directors, VAT and financials

answering
ARES (Czech business registry)
by milos106

MCP for ARES, the Czech business registry: lookup, due diligence, insolvency, signed provenance

55 installs/wk local only
Ares Cz
by pipeworx-io

Czech business register (ARES) — look up any Czech company or sole trader by IČO or by name, and…

570 installs/wk 47 tools answering
VATKit
by olsols4

Live EU VAT number checks via VIES with company name/address, VAT formats and EU VAT rates

answering
auregistre
by auregistre

French companies: dated changes and insolvencies (BODACC), filed accounts by year (INPI). No key.

6 tools answering
V
Vsafe Risk
by v-safe

KYB risk scores for Israeli companies: sanctions, insolvency, adverse media, cyber, registry.

2 tools answering
ImonesMCP
by imonesmcp

Lithuanian company registry for agents: search, financials, ownership, public contracts, insolvency

answering

Czech Company Registry (ARES) Tools — questions

Answers built from our own checks of this server.

What can Czech Company Registry (ARES) Tools do?
It exposes 6 tools, read directly from the server on our last check. Among them: address_check, check_vat, company_lookup, entity_status, search_company, validate_cz. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Czech Company Registry (ARES) Tools working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 296 ms. The bar chart above shows every period we have measured.
How do I connect Czech Company Registry (ARES) Tools?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Czech Company Registry (ARES) Tools need an API key?
No. Czech Company Registry (ARES) Tools completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Czech Company Registry (ARES) Tools?
It answers our handshake in 296 ms on average, which is faster than 48% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.