io.github.matematicsolutions/fi-eli-mcp

fi-eli-mcp

Install (one command)

As a Claude plugin (Claude Code or the desktop app, needs uv); see plugin/README.md for what it sends and stores:

/plugin marketplace add matematicsolutions/fi-eli-mcp
/plugin install fi-eli-mcp@fi-eli-mcp

Published on PyPI + MCP Registry (io.github.matematicsolutions/fi-eli-mcp). Run without cloning:

uvx fi-eli-mcp

Configure your MCP client (stdio):

{ "mcpServers": { "fi-eli-mcp": { "command": "uvx", "args": ["fi-eli-mcp"] } } }

Windows 11 with Smart App Control

Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe and the fi-eli-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 fi-eli-mcp
python -m fi_eli_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 fi_eli_mcp.

{ "mcpServers": { "fi-eli-mcp": { "command": "python", "args": ["-m", "fi_eli_mcp"] } } }

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

Building from source: see Install.

An MCP server for the Finnish Finlex open-data API (opendata.finlex.fi). It fetches consolidated Finnish statutes as Akoma Ntoso 3.0 XML, with verifiable ELI identifiers and Finnish citations.

Part of the MateMatic eu-legal-mcp production line - after PL, DE, AT and ES. Same citation contract, Finlex source.

Scope. This MVP covers Finnish statutes (saadokset). Discovery is by year (fi_list_acts) or by year + number; the open-data API is path-based, not keyword search. Finland is bilingual, so titles may be Finnish or Swedish. Every response carries a dataset_note.

Licence. Finnish legislation in Finlex is official public information published as open data (keyless). This connector relays it with attribution and a source_url.

The tools

Every response carries the contract: eli_uri (a full ELI URL, e.g. http://data.finlex.fi/eli/sd/2018/1050/alkup), human_readable_citation (e.g. Tietosuojalaki (1050/2018)), and source_url.

Install

cd fi-eli-mcp
pip install -e .

Configure (Claude Code / any MCP client)

{
  "mcpServers": {
    "fi-eli-mcp": { "command": "fi-eli-mcp" }
  }
}

Environment:

• FI_ELI_BASE_URL - default https://opendata.finlex.fi/finlex/avoindata/v1
• FI_ELI_CACHE_DIR - default ~/.matematic/cache/fi-eli
• FI_ELI_AUDIT_DIR - default ~/.matematic/audit

No API key. Finlex open data is keyless.

Governance

• Public data only - read-only against Finlex; no client data leaves the machine.
• Audit log - every tool call appends one JSON line to ~/.matematic/audit/fi-eli-mcp.jsonl.
• Network - the server talks to the official source(s) named above and the local filesystem. Once, on first use, it also fetches a small configuration file (fi-runtime.json.gz, updated source addresses) from this repository's GitHub Releases. That request carries no query content; GitHub's download counter for the file is the only usage signal we see. FI_ELI_RUNTIME_URL="" turns it off; the Claude plugin ships with it off. No LLM provider, no other telemetry.
• Verifiable citations - every response is independently checkable via source_url.

See CONSTITUTION.md and DISCOVERY.md.

Tests

pip install -e ".[dev]"
pytest tests/test_instructions_drift.py -v   # offline
pytest tests/test_smoke.py -v                # hits live Finlex

Licence

Apache-2.0. © Matematic Solutions / Wieslaw Mazur.