Slovak Law MCP Server

Slovak Law MCP Server

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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Quick Start

Use Remotely (No Install Needed)

Connect directly to the hosted version — zero dependencies, nothing to install.

Endpoint: https://mcp.ansvar.eu/law-sk/mcp

Claude Desktop — add to claude_desktop_config.json:

{
  "mcpServers": {
    "slovak-law": {
      "type": "url",
      "url": "https://mcp.ansvar.eu/law-sk/mcp"
    }
  }
}

GitHub Copilot — add to VS Code settings.json:

{
  "github.copilot.chat.mcp.servers": {
    "slovak-law": {
      "type": "http",
      "url": "https://mcp.ansvar.eu/law-sk/mcp"
    }
  }
}

Use Locally (npm)

npx @ansvar/slovak-law-mcp

Claude Desktop — add to claude_desktop_config.json:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "slovak-law": {
      "command": "npx",
      "args": ["-y", "@ansvar/slovak-law-mcp"]
    }
  }
}

Cursor / VS Code:

{
  "mcp.servers": {
    "slovak-law": {
      "command": "npx",
      "args": ["-y", "@ansvar/slovak-law-mcp"]
    }
  }
}

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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Related Projects: Complete Compliance Suite

This server is part of Ansvar's Compliance Suite — MCP servers that work together for end-to-end compliance coverage:

@ansvar/eu-regulations-mcp

Query 49 EU regulations directly from Claude — GDPR, AI Act, DORA, NIS2, MiFID II, eIDAS, and more. Full regulatory text with article-level search. npx @ansvar/eu-regulations-mcp

@ansvar/slovak-law-mcp (This Project)

Query 25,609 Slovak statutes directly from Claude — zákon č. 18/2018 Z.z., Trestný zákon, Občiansky zákonník, and more. Full provision text with EU cross-references. npx @ansvar/slovak-law-mcp

@ansvar/czech-law-mcp

Query 45,899 Czech statutes directly from Claude — for cross-border Czechoslovak legal research. npx @ansvar/czech-law-mcp

@ansvar/security-controls-mcp

Query 261 security frameworks — ISO 27001, NIST CSF, SOC 2, CIS Controls, SCF, and more. npx @ansvar/security-controls-mcp

70+ national law MCPs covering Austria, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, UK, and more.

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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
• npm package publication
• Judikatúra (court case law) expansion
• Full EU text integration (via @ansvar/eu-regulations-mcp)
• 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

• Statutes & Legislation: Ministerstvo spravodlivosti SR / SLOV-LEX (public domain)
• EU Metadata: EUR-Lex (EU public domain)

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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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