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ARES (Czech business registry) MCP Server

local only

ARES (Czech business registry) runs on your own machine — the client starts it, so there is no endpoint to ping. 34 installs a week from npm. Last commit 26 Jun 2026.

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

Installs per day peak 10 · avg 5 · +125% w/w
a month agotoday
34
Installs / week
npm · @milos106/ares-mcp
0
Stars
0 open issues
26 Jun 2026
Last commit
0 releases in 90 days
MIT
License
TypeScript

Nothing serious here today

Today is the operative word: we check ARES (Czech business registry) 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

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add ares-mcp -- npx -y @milos106/ares-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "ares-mcp": {
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.ares-mcp]
command = "npx"
args = ["-y", "@milos106/ares-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "ares-mcp": {
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "ares-mcp": {
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: ARES_PROVENANCE_PRIVATE_KEY (Optional Ed25519 private key (base64 PKCS#8 DER) to enable signed provenance envelopes. Omit to run unsigned.), ARES_PROVENANCE_KEY_ID (Optional key id advertised in signed envelopes and the JWKS. Defaults to a thumbprint of the public key.), ARES_BASE_URL (Optional override of the ARES REST base URL (defaults to the public ares.gov.cz endpoint).). The author declared them in the registry entry; get the values from the project itself.

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ARES (Czech business registry) — questions

Answers built from our own checks of this server.

Why is there no uptime for ARES (Czech business registry)?
ARES (Czech business registry) runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @milos106/ares-mcp was installed 34 times last week.
How do I connect ARES (Czech business registry)?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @milos106/ares-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use ARES (Czech business registry)?
The npm package @milos106/ares-mcp was installed 34 times in the last week. Week over week that is +125%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ARES (Czech business registry) open source?
Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.