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

---

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.

---

Quick Start

Use Remotely (No Install Needed)

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

Endpoint: https://slovak-law-mcp.vercel.app/mcp

Client	How to Connect
Claude.ai	Settings > Connectors > Add Integration > paste URL
Claude Code	claude mcp add slovak-law --transport http https://slovak-law-mcp.vercel.app/mcp
Claude Desktop	Add to config (see below)
GitHub Copilot	Add to VS Code settings (see below)

Claude Desktop — add to claude_desktop_config.json:

{
  "mcpServers": {
    "slovak-law": {
      "type": "url",
      "url": "https://slovak-law-mcp.vercel.app/mcp"
    }
  }
}

GitHub Copilot — add to VS Code settings.json:

{
  "github.copilot.chat.mcp.servers": {
    "slovak-law": {
      "type": "http",
      "url": "https://slovak-law-mcp.vercel.app/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'"

---

What's Included

Category	Count	Details
Statutes	25,609 zákonov	Comprehensive Slovak legislation from SLOV-LEX
Provisions	1,913 paragrafov	Full-text searchable with FTS5
Premium: Case law	0 (free tier)	Judikatúra expansion planned
Premium: Preparatory works	428,952 documents	Dôvodové správy and parliamentary documentation
Premium: Agency guidance	0 (free tier)	Úrad na ochranu osobných údajov guidance planned
Database Size	~27 MB	Optimized SQLite, portable
Daily Updates	Automated	Freshness checks against SLOV-LEX

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

---

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 Approach	This MCP Server
Search SLOV-LEX by číslo zákona	Search by plain Slovak: "ochrana osobných údajov súhlas"
Navigate multi-chapter statutes manually	Get the exact provision with context
Manual cross-referencing between zákony	build_legal_stance aggregates across sources
"Je tento zákon platný?" → check manually	check_currency tool → answer in seconds
Find EU basis → dig through EUR-Lex	get_eu_basis → linked EU directives instantly
No API, no integration	MCP protocol → AI-native

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.

---

Available Tools (13)

Core Legal Research Tools (8)

Tool	Description
search_legislation	FTS5 full-text search across 1,913 provisions with BM25 ranking. Supports quoted phrases, boolean operators, prefix wildcards
get_provision	Retrieve specific provision by zákon number + paragraph (e.g., "18/2018 Z.z." + "§ 13")
check_currency	Check if a statute is in force (platný/neplatný), amended, or repealed
validate_citation	Validate citation against database — zero-hallucination check. Supports "zákon č. 18/2018 Z.z., § 13"
build_legal_stance	Aggregate citations from multiple statutes for a legal topic
format_citation	Format citations per Slovak conventions (full/short/pinpoint)
list_sources	List all available statutes with metadata, coverage scope, and data provenance
about	Server info, capabilities, dataset statistics, and coverage summary

EU Law Integration Tools (5)

Tool	Description
get_eu_basis	Get EU directives/regulations underlying a Slovak statute
get_slovak_implementations	Find Slovak laws implementing a specific EU act
search_eu_implementations	Search EU documents with Slovak implementation counts
get_provision_eu_basis	Get EU law references for a specific provision
validate_eu_compliance	Check implementation status of Slovak statutes against EU directives

---

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.

Metric	Value
EU Member State	Yes — since 1 May 2004
Eurozone	Yes — since 1 January 2009
EU References	Cross-references linking Slovak statutes to EU law
Directives transposed	GDPR, NIS2, DORA, AI Act, eIDAS, PSD2, AML directives, and more
EUR-Lex Integration	Automated metadata fetching
Úrad supervision	Data protection and cybersecurity regulatory frameworks fully covered

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.

---

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

Field	Value
Authority	Ministerstvo spravodlivosti Slovenskej republiky / SLOV-LEX
Retrieval method	SLOV-LEX official database and open data
Language	Slovak
License	Public domain (verejná správa)
Coverage	25,609 statutes, 1,913 provisions
Last ingested	2026-02-28

Automated Freshness Checks (Daily)

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

Check	Method
Statute amendments	SLOV-LEX date comparison across 25,609 statutes
New statutes	Zbierka zákonov publication monitoring
Repealed statutes	Platnosť/neplatnosť status change detection
EU reference staleness	Git commit timestamps — flagged if >90 days old

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

---

Security

This project uses multiple layers of automated security scanning:

Scanner	What It Does	Schedule
CodeQL	Static analysis for security vulnerabilities	Weekly + PRs
Semgrep	SAST scanning (OWASP top 10, secrets, TypeScript)	Every push
Gitleaks	Secret detection across git history	Every push
Trivy	CVE scanning on filesystem and npm dependencies	Daily
Docker Security	Container image scanning + SBOM generation	Daily
Socket.dev	Supply chain attack detection	PRs
OSSF Scorecard	OpenSSF best practices scoring	Weekly
Dependabot	Automated dependency updates	Weekly

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

---

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.

---

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

---

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.

---

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

---

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

---

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}
}

---

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)

---

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

---

_{Built with care in Stockholm, Sweden}