Kio Orzeczenia MCP server

kio-orzeczenia-mcp

<!-- mcp-name: io.github.matematicsolutions/kio-orzeczenia-mcp -->

MCP server (Model Context Protocol) for the case law of the Krajowa Izba Odwolawcza (KIO) (National Appeals Chamber) at the Urzad Zamowien Publicznych (Public Procurement Office) - the public database orzeczenia.uzp.gov.pl.

It lets Claude / Cursor / VS Code MCP agents consume KIO rulings with verifiable citations (signature + URL + date).

Status: POC v0.1.0 | License: Apache-2.0 | Maintainer: MateMatic

Preliminary warning. The v0.1.0 connector is a proof-of-concept release. It fetches data from the public UZP case law database via HTML (no official REST API). Full legal disclaimer - see the "Legal disclaimer" section below. A dedicated smoke test and notification to UZP are required before production deployment.

What KIO is

The Krajowa Izba Odwolawcza (National Appeals Chamber) is an administrative (quasi-judicial) body operating at the Urzad Zamowien Publicznych (Public Procurement Office) - KIO members are independent when adjudicating (art. 471 PZP) - which hears appeals against contracting authorities' decisions in public procurement proceedings (the Act of 11 September 2019 - Public Procurement Law). KIO rulings are made publicly available by UZP under the Act on access to public information.

KIO rulings are not a source of law within the meaning of art. 87 of the Constitution of the Republic of Poland - they are reference material widely used in the practice of law firms dealing with public procurement.

Quickstart

# Clone and enter the directory
git clone https://github.com/matematicsolutions/kio-orzeczenia-mcp.git
cd kio-orzeczenia-mcp

# Virtualenv
python -m venv .venv
.\.venv\Scripts\Activate.ps1

# Install
pip install -e ".[dev]"

# Offline test (signature parser)
pytest tests/test_signature.py -v

# Smoke test (online - hits UZP, rate-limited 1 req/s)
pytest tests/test_smoke.py -v -m smoke

# Run the server (stdio)
python -m kio_orzeczenia_mcp.server

Wiring into Claude Code

Add to ~/.claude.json (or .mcp.json in the project):

{
  "mcpServers": {
    "kio-orzeczenia": {
      "command": "python",
      "args": ["-m", "kio_orzeczenia_mcp.server"],
      "env": {
        "KIO_MCP_RATE_LIMIT": "1.0",
        "KIO_MCP_CACHE_DIR": "~/.matematic/cache/kio"
      }
    }
  }
}

Restart Claude Code. After startup, 5 tools should be visible.

Windows 11 with Smart App Control

Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe and the kio-orzeczenia-mcp.exe launcher that pip writes at install time. The python.exe and py.exe from the python.org installer are signed by the Python Software Foundation, so running the module through the interpreter works:

python -m pip install kio-orzeczenia-mcp
python -m kio_orzeczenia_mcp

pip.exe is blocked for the same reason, so install with python -m pip, not pip install. If python is not on PATH, use the Windows launcher: py -3 -m kioorzeczeniamcp.

{ "mcpServers": { "kio-orzeczenia-mcp": { "command": "python", "args": ["-m", "kio_orzeczenia_mcp"] } } }

Do not turn Smart App Control off to work around this - it cannot be re-enabled without reinstalling Windows.

6 MCP tools

1. kio_search(query: SearchQuery) -> SearchResult

Search over KIO case law. All fields optional.

// Arguments:
{
  "phrase": "razaco niska cena",
  "signature": null,
  "date_from": "2024-01-01",
  "date_to": "2024-12-31",
  "pzp_article": "226",
  "subject_index": null,
  "inflection": true,
  "page": 1,
  "size": 20
}

Returns {total, page, items: [OrzeczenieSummary]}.

2. kiogetorzeczenie(signatureorid: str | int) -> Orzeczenie

Fetches the full text of a single ruling.

Shortened. The full README is on GitHub.