Slovak Law MCP Server

Slovak Law MCP Server

The Slovak law corpus is now served through the Ansvar Gateway. Connect your AI assistant (Claude, Copilot, Cursor, or any MCP client) to https://gateway.ansvar.eu/mcp — one OAuth connection, free tier available, covering this corpus plus EU regulations, national law across 28 audited jurisdictions (Europe + the US), and CVE/security intelligence, every result with a verbatim source citation. Start at https://ansvar.eu/docs/quickstart

Connect

Claude Code (one line):

claude mcp add ansvar --transport http https://gateway.ansvar.eu/mcp

Claude Desktop / Cursor — add to claude_desktop_config.json (or mcp.json):

{
  "mcpServers": {
    "ansvar": {
      "type": "url",
      "url": "https://gateway.ansvar.eu/mcp"
    }
  }
}

Claude.ai — Settings → Connectors → Add custom connector → paste https://gateway.ansvar.eu/mcp

First request opens an OAuth signup flow (setup details: ansvar.eu/docs/quickstart). After signup, your client is bound to your account; tier (free / premium / team / company) determines fan-out, quota, and which downstream MCPs are reachable.

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Self-host this MCP

You can also clone this repo and build the corpus yourself. The schema, fetcher, and tool implementations all live here. What is not in the repo is the pre-built database — TDM and standards-licensing constraints on the upstream sources mean we host the corpus on Ansvar infrastructure rather than redistribute it as a public artifact.

Build your own: run this repo's ingestion script (entry-point varies per repo — typically scripts/ingest.sh, npm run ingest, or make ingest; check the repo root).

The SLOV-LEX alternative for the AI age.

Query 25,609 Slovak statutes — from zákon č. 18/2018 Z.z. (ochrana osobných údajov) and the Trestný zákon to the Občiansky zákonník, zákon o kybernetickej bezpečnosti, and more — directly from Claude, Cursor, or any MCP-compatible client.

If you're building legal tech, compliance tools, or doing Slovak legal research, this is your verified reference database.

Built by Ansvar Systems -- Stockholm, Sweden

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Why This Exists

Slovak legal research is scattered across SLOV-LEX, zbierka.sk, EUR-Lex, and government ministerial portals. Whether you're:

• A lawyer validating citations in a brief or zmluva
• A compliance officer checking obligations under zákon č. 18/2018 Z.z. or zákon č. 69/2018 Z.z.
• A legal tech developer building tools on Slovak law
• A researcher tracing legislative history from dôvodová správa to zákon

...you shouldn't need a dozen browser tabs and manual PDF cross-referencing. Ask Claude. Get the exact provision. With context.

This MCP server makes Slovak law searchable, cross-referenceable, and AI-readable.

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Example Queries

Once connected, just ask naturally (dotazy fungujú v slovenčine alebo angličtine):

• "Čo hovorí § 13 zákona č. 18/2018 Z.z. o právnom základe spracúvania osobných údajov?"
• "Hľadať 'ochrana osobných údajov' v slovenskej legislatíve"
• "Je zákon č. 122/2013 Z.z. o ochrane osobných údajov stále platný?"
• "Aké sú trestné činy kybernetickej kriminality v Trestnom zákone (č. 300/2005 Z.z.)?"
• "Ktoré slovenské zákony transponujú smernicu NIS2?"
• "Hľadať ustanovenia o elektronickom podpise v zákone č. 272/2016 Z.z."
• "Find provisions about data breach notification in Slovak law"
• "Validate the citation 'zákon č. 18/2018 Z.z., § 34'"

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What's Included

Verified data only — every citation is validated against official sources (SLOV-LEX / zbierka.sk). Zero LLM-generated content.

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Why This Works

Verbatim Source Text (No LLM Processing):

• All statute text is ingested from SLOV-LEX (slov-lex.sk) official sources
• Provisions are returned unchanged from SQLite FTS5 database rows
• Zero LLM summarization or paraphrasing — the database contains regulation text, not AI interpretations

Smart Context Management:

• Search returns ranked provisions with BM25 scoring (safe for context)
• Provision retrieval gives exact text by zákon number + paragraph
• Cross-references help navigate without loading everything at once

Technical Architecture:

SLOV-LEX API → Parse → SQLite → FTS5 snippet() → MCP response
                 ↑                     ↑
          Provision parser       Verbatim database query

Traditional Research vs. This MCP

Traditional: Search SLOV-LEX → Download PDF → Ctrl+F → Cross-reference with EUR-Lex → Check Úrad na ochranu osobných údajov → Repeat

This MCP: "Aký je európsky základ § 13 zákona č. 18/2018 Z.z. o ochrane osobných údajov?" → Done.

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Available Tools (13)

Core Legal Research Tools (8)

EU Law Integration Tools (5)

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EU Law Integration

Slovakia is an EU member state (since 2004) and eurozone member (since 2009). Slovak legislation in data protection, cybersecurity, financial services, and e-commerce is built on EU directives and regulations. The EU bridge tools give you full bi-directional lookup.

Key Slovak EU Implementations

• Zákon č. 18/2018 Z.z. — GDPR national implementation (ochrana osobných údajov)
• Zákon č. 69/2018 Z.z. — Zákon o kybernetickej bezpečnosti (NIS Directive transposition)
• Zákon č. 272/2016 Z.z. — Zákon o dôveryhodných službách (eIDAS transposition)
• Zákon č. 492/2009 Z.z. — Zákon o platobných službách (PSD2 transposition)

See EU_INTEGRATION_GUIDE.md for detailed documentation.

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Data Sources & Freshness

All content is sourced from authoritative Slovak legal databases:

• SLOV-LEX — Portál právnych predpisov SR (official legal portal)
• zbierka.sk — Zbierka zákonov Slovenskej republiky
• EUR-Lex — Official EU law database (metadata only)

Data Provenance

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors SLOV-LEX for changes:

Verified data only — every citation is validated against official sources. Zero LLM-generated content.

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Security

This project uses multiple layers of automated security scanning:

See SECURITY.md for the full policy and vulnerability reporting.

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Important Disclaimers

Legal Advice

THIS TOOL IS NOT LEGAL ADVICE

Statute text is sourced from official SLOV-LEX publications. However:

• This is a research tool, not a substitute for professional legal counsel
• Court case coverage is not included in the free tier — do not rely solely on this for judikatúra research
• Verify critical citations against primary sources (SLOV-LEX, Zbierka zákonov) for court filings
• EU cross-references are extracted from statute text and EUR-Lex metadata, not a complete implementation mapping

Before using professionally, read: DISCLAIMER.md | PRIVACY.md

Client Confidentiality

Queries go through the Claude API. For privileged or confidential matters, use on-premise deployment. See PRIVACY.md for guidance consistent with Slovenská advokátska komora (Slovak Bar Association) professional conduct standards.

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Development

Setup

git clone https://github.com/Ansvar-Systems/Slovak-law-mcp
cd Slovak-law-mcp
npm install
npm run build
npm test

Running Locally

npm run dev                                       # Start MCP server
npx @anthropic/mcp-inspector node dist/index.js   # Test with MCP Inspector

Data Management

npm run ingest           # Ingest statutes from SLOV-LEX
npm run build:db         # Rebuild SQLite database
npm run drift:detect     # Run drift detection against anchors
npm run check-updates    # Check for amendments

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: ~27 MB (efficient, portable)
• Reliability: 100% ingestion success rate

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More Ansvar MCPs

Full fleet coverage at ansvar.eu/coverage.

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Court case law expansion (Ústavný súd SR, Najvyšší súd SR)
• EU cross-reference expansion
• Historical statute versions and amendment tracking
• Úrad na ochranu osobných údajov guidance documents
• NBÚ (Národný bezpečnostný úrad) guidance

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Roadmap

• Core statute database with FTS5 search (25,609 statutes, 1,913 provisions)

• EU law integration with bi-directional lookup

• Premium preparatory works dataset (428,952 documents)

• Vercel Streamable HTTP deployment

• Judikatúra (court case law) expansion

• Historical statute versions (amendment tracking)

• Úrad na ochranu osobných údajov guidance

• Full provision coverage expansion

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Citation

If you use this MCP server in academic research:

@software{slovak_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Slovak Law MCP Server: AI-Powered Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Slovak-law-mcp},
  note = {25,609 Slovak statutes with EU law cross-references and 428,952 preparatory works}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

Ansvar attribution code: SK-Statutory-PD. Basis: Autorský zákon §5(b) — the broadest preparatory-docs carve-out in the EU statutory-PD audit.

• Statutes & Legislation: Ministerstvo spravodlivosti SR (Ministry of Justice) via Slov-Lex (slov-lex.sk). Reused under Autorský zákon §5(b).
• EU Metadata: EUR-Lex (EU public-domain notice).

Coverage scope (broad — broadest in EU audit)

Slovak §5(b) is the broadest of the EU statutory-PD carve-outs reviewed. It covers the standard four categories plus extras:

• Legislative texts (právne predpisy)
• Administrative texts and decisions
• Court decisions
• Preparatory documentation (prípravná dokumentácia)
• Technical standards (technické normy)
• Parliamentary speeches

See docs/audits/2026-05-17-eu-copyright-statutory-works-batch-3-BG-HR-SK-SI-SE.md in the Ansvar architecture-documentation repo for the verbatim §5(b) text and the coverage analysis.

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About Ansvar Systems

We build AI-accelerated compliance and legal research tools for the European market. This MCP server is part of our Central European coverage — alongside Czech, Polish, and Hungarian law MCPs — ensuring that the full EU compliance picture is accessible from a single AI interface.

So we're open-sourcing it. Navigating 25,609 statutes shouldn't require a law degree.

ansvar.eu -- Stockholm, Sweden

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