MCP Server

ARES (Czech business registry) MCP Server

Name: ARES (Czech business registry) MCP Server
Author: io.github.milos106

io.github.milos106/ares-mcp

Repository Registry

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

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

How to install ARES (Czech business registry)

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

ARES_PROVENANCE_PRIVATE_KEY
secret
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).

Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ares-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "env": {
        "ARES_PROVENANCE_PRIVATE_KEY": "<YOUR_ARES_PROVENANCE_PRIVATE_KEY>",
        "ARES_PROVENANCE_KEY_ID": "<YOUR_ARES_PROVENANCE_KEY_ID>",
        "ARES_BASE_URL": "<YOUR_ARES_BASE_URL>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "ares-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "env": {
        "ARES_PROVENANCE_PRIVATE_KEY": "<YOUR_ARES_PROVENANCE_PRIVATE_KEY>",
        "ARES_PROVENANCE_KEY_ID": "<YOUR_ARES_PROVENANCE_KEY_ID>",
        "ARES_BASE_URL": "<YOUR_ARES_BASE_URL>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "ares-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "env": {
        "ARES_PROVENANCE_PRIVATE_KEY": "<YOUR_ARES_PROVENANCE_PRIVATE_KEY>",
        "ARES_PROVENANCE_KEY_ID": "<YOUR_ARES_PROVENANCE_KEY_ID>",
        "ARES_BASE_URL": "<YOUR_ARES_BASE_URL>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "ares-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@milos106/ares-mcp"
      ],
      "env": {
        "ARES_PROVENANCE_PRIVATE_KEY": "<YOUR_ARES_PROVENANCE_PRIVATE_KEY>",
        "ARES_PROVENANCE_KEY_ID": "<YOUR_ARES_PROVENANCE_KEY_ID>",
        "ARES_BASE_URL": "<YOUR_ARES_BASE_URL>"
      }
    }
  }
}

Claude Code

claude mcp add ares-mcp --env ARES_PROVENANCE_PRIVATE_KEY=<YOUR_ARES_PROVENANCE_PRIVATE_KEY> --env ARES_PROVENANCE_KEY_ID=<YOUR_ARES_PROVENANCE_KEY_ID> --env ARES_BASE_URL=<YOUR_ARES_BASE_URL> -- npx -y @milos106/ares-mcp