Slovak Law MCP Server

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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 flow at ansvar.eu/gateway. 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.

![MCP Registry](https://registry.modelcontextprotocol.io) ![License](https://opensource.org/licenses/Apache-2.0) ![GitHub stars](https://github.com/Ansvar-Systems/Slovak-law-mcp) ![CI](https://github.com/Ansvar-Systems/Slovak-law-mcp/actions/workflows/ci.yml) ![Daily Data Check](https://github.com/Ansvar-Systems/Slovak-law-mcp/actions/workflows/check-updates.yml) ![Database](docs/EU_INTEGRATION_GUIDE.md) ![Provisions](docs/EU_INTEGRATION_GUIDE.md)

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

| 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.

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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 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.

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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 |

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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.

| 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.

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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

| 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.

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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.

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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 at ansvar.eu/gateway.

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

[x] Core statute database with FTS5 search (25,609 statutes, 1,913 provisions)
[x] EU law integration with bi-directional lookup
[x] Premium preparatory works dataset (428,952 documents)
[x] 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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<p align="center"> <sub>Built with care in Stockholm, Sweden</sub> </p>

Slovak-law-mcp