hr-eli-mcp

An MCP server for the Croatian Narodne novine official gazette (narodne-novine.nn.hr). It fetches Croatian legislation with European ELI identifiers and verifiable citations.

Part of the MateMatic eu-legal-mcp production line - after PL, DE, AT, ES, FI, IE, NL, SE, FR, LU, DK and CZ. Same citation contract, Narodne novine source. Croatia is ELI-native on the European ELI ontology (data.europa.eu/eli), with JSON-LD metadata per document.

Scope. This MVP lists the documents of a gazette issue, returns per-document metadata from JSON-LD, and fetches the official HTML text. Documents are addressed by year + issue + document number; the gazette is path-based, not keyword search. Coverage 1990-present. Language: Croatian. Every response carries a dataset_note.

Licence. Narodne novine is the official public gazette of Croatia. This connector relays it read-only with attribution and a source_url.

The tools

Every response carries the contract: eli_uri (the European ELI URL, e.g. https://narodne-novine.nn.hr/eli/sluzbeni/2018/42/805), human_readable_citation (title + NN 42/2018), and source_url.

Install

Run it with no install step (once published to PyPI):

uvx hr-eli-mcp

Or from source:

cd hr-eli-mcp
pip install -e .

Configure (Claude Code / any MCP client)

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

Environment:

• HR_ELI_BASE_URL - default https://narodne-novine.nn.hr
• HR_ELI_CACHE_DIR - default ~/.matematic/cache/hr-eli
• HR_ELI_AUDIT_DIR - default ~/.matematic/audit

No API key. Narodne novine open data is keyless.

Governance

• Public data only - read-only against Narodne novine; no client data leaves the machine.
• Audit log - every tool call appends one JSON line to ~/.matematic/audit/hr-eli-mcp.jsonl.
• Vendor-neutral - talks only to narodne-novine.nn.hr; no LLM provider, no 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 tests/test_parse.py -v   # offline
pytest tests/test_smoke.py -v                                    # hits live Narodne novine

Licence

Apache-2.0. © Matematic Solutions / Wieslaw Mazur.