Belgian 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 Belgian Official Gazette (Belgisch Staatsblad / Moniteur belge) 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/Belgium-law-mcp) ![CI](https://github.com/Ansvar-Systems/Belgium-law-mcp/actions/workflows/ci.yml) ![Daily Data Check](https://github.com/Ansvar-Systems/Belgium-law-mcp/actions/workflows/check-updates.yml) ![Database](docs/EU_INTEGRATION_GUIDE.md) ![Provisions](docs/EU_INTEGRATION_GUIDE.md)

Query 5,775 Belgian statutes -- from the loi du 30 juillet 2018 (protection des données) and Code pénal to the Code civil, Code des sociétés et des associations, and more -- directly from Claude, Cursor, or any MCP-compatible client.

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

Built by Ansvar Systems -- Stockholm, Sweden

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Why This Exists

Belgian legal research means navigating the bilingual Belgisch Staatsblad / Moniteur belge, reconciling French and Dutch texts, and manually cross-referencing between federal, regional, and community law. Belgium also hosts the EU's primary institutions -- making Belgian law particularly relevant for EU regulatory compliance work. Whether you're:

A lawyer validating citations in a brief or contract
A compliance officer checking GDPR implementation or Loi anti-blanchiment requirements
A legal tech developer building tools on Belgian or EU institutional law
A researcher tracing EU institutional decisions back to Belgian implementation

...you shouldn't need dozens of browser tabs and multilingual PDF cross-referencing. Ask Claude. Get the exact provision. With context.

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

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Example Queries

Once connected, just ask naturally -- in French, Dutch, or English:

French:

"Que dit la loi du 30 juillet 2018 sur la protection des données (article 5) ?"
"Recherche des dispositions sur la 'protection des données' dans le droit belge"
"Quelles directives européennes la loi du 30 juillet 2018 met-elle en œuvre ?"
"Trouvez les sanctions pénales dans le Code pénal pour fraude informatique"
"Qu'est-ce que le Code des sociétés et des associations dit sur la responsabilité des administrateurs ?"

Dutch:

"Wat zegt de wet van 30 juli 2018 over toestemming voor gegevensverwerking?"
"Zoek naar 'gegevensbescherming' in het Belgische recht"
"Welke Belgische wetten implementeren de AVG (GDPR)?"

English:

"Which Belgian laws implement the GDPR?"
"Compare NIS2 implementation requirements across Belgian statutes"

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What's Included

| Category | Count | Details | |----------|-------|---------| | Statutes | 5,775 statutes | Comprehensive Belgian federal legislation | | Provisions | 142,743 sections | Full-text searchable with FTS5 | | Agency Guidance | 10 documents | GBA/APD regulatory guidance (Premium) | | Database Size | ~126 MB | Optimized SQLite, portable | | Daily Updates | Automated | Freshness checks against Belgisch Staatsblad |

Verified data only -- every citation is validated against official sources (ejustice.just.fgov.be). Zero LLM-generated content.

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See It In Action

Why This Works

Verbatim Source Text (No LLM Processing):

All statute text is ingested from the Belgisch Staatsblad / Moniteur belge (ejustice.just.fgov.be)
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 publication date + article number
Cross-references help navigate without loading everything at once

Technical Architecture: `` ejustice.just.fgov.be → Parse → SQLite → FTS5 snippet() → MCP response ↑ ↑ Provision parser Verbatim database query ``

Traditional Research vs. This MCP

| Traditional Approach | This MCP Server | |---------------------|-----------------| | Search Belgisch Staatsblad by date | Search by plain French/Dutch: "protection des données" | | Navigate multilingual statute texts manually | Get the exact provision with context | | Manual cross-referencing between laws | build_legal_stance aggregates across sources | | "Is this statute still in force?" → check manually | check_currency tool → answer in seconds | | Find EU basis → dig through EUR-Lex | get_eu_basis → linked EU directives instantly | | Check ejustice for updates | Daily automated freshness checks | | No API, no integration | MCP protocol → AI-native |

Traditional: Search ejustice → Navigate HTML → Ctrl+F → Cross-reference French/Dutch texts → Check EUR-Lex → Repeat

This MCP: "Quelles obligations la loi du 30 juillet 2018 impose-t-elle et quelle directive EU la sous-tend ?" → Done.

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Available Tools (13)

Core Legal Research Tools (8)

| Tool | Description | |------|-------------| | search_legislation | FTS5 search on 142,743 provisions with BM25 ranking | | get_provision | Retrieve specific provision by statute identifier + article | | validate_citation | Validate citation against database (zero-hallucination check) | | build_legal_stance | Aggregate citations from statutes and agency guidance | | format_citation | Format citations per Belgian conventions (full/short/pinpoint) | | check_currency | Check if statute is in force, amended, or repealed | | list_sources | List all available statutes with metadata 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 for Belgian statute | | get_belgian_implementations | Find Belgian laws implementing EU act | | search_eu_implementations | Search EU documents with Belgian implementation counts | | get_provision_eu_basis | Get EU law references for specific provision | | validate_eu_compliance | Check implementation status (requires EU MCP) |

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EU Law Integration

Belgium is an EU member state and the home of the European Commission, European Council, and most EU agencies. Belgian law is uniquely positioned at the intersection of EU institutional decision-making and national transposition.

| Metric | Value | |--------|-------| | EU Member Since | 1957 (founding member) | | GDPR Implementation | Loi du 30 juillet 2018 | | NIS2 Implementation | Loi du 26 avril 2024 (cybersécurité) | | Data Authority (FR) | Autorité de protection des données (APD) | | Data Authority (NL) | Gegevensbeschermingsautoriteit (GBA) | | EUR-Lex Integration | Automated metadata fetching |

Key Belgian EU Implementations

GDPR (2016/679) → Loi du 30 juillet 2018 relative à la protection des personnes physiques
NIS2 Directive (2022/2555) → Loi du 26 avril 2024 (NIS2 transposition)
AI Act (2024/1689) → Belgian implementation in progress
eIDAS (910/2014) → Loi du 21 juillet 2016 (signatures électroniques)
AML Directive (2015/849) → Loi du 18 septembre 2017 (anti-blanchiment)
Consumer Rights Directive (2011/83) → Code de droit économique, Livre VI

Note on language: Belgian law is officially trilingual. The database includes both French and Dutch texts for federal statutes. German-language texts (for the German-speaking Community) are not included in the current release.

See EU_INTEGRATION_GUIDE.md for detailed documentation.

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Data Sources & Freshness

All content is sourced from authoritative Belgian legal databases:

ejustice.just.fgov.be -- Official Belgian law database (Justice)
belgisch-staatsblad.be -- Belgisch Staatsblad / Moniteur belge
EUR-Lex -- Official EU law database (metadata only)

Data Provenance

| Field | Value | |-------|-------| | Authority | Service public fédéral Justice / Federale Overheidsdienst Justitie | | Retrieval method | ejustice.just.fgov.be HTML parse | | Languages | French and Dutch (both official federal languages) | | License | Belgian public data (open government) | | Coverage | 5,775 federal statutes | | Last ingested | 2026-02-25 |

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors all data sources:

| Source | Check | Method | |--------|-------|--------| | Statute amendments | ejustice API date comparison | All 5,775 statutes checked | | New statutes | Belgisch Staatsblad publication feed | Diffed against database | | EU reference staleness | Git commit timestamps | Flagged if >90 days old |

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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 ejustice.just.fgov.be publications. However: - This is a research tool, not a substitute for professional legal counsel - Court case coverage is limited -- do not rely solely on this for case law research - Verify critical citations against primary sources for court filings - EU cross-references are extracted from Belgian statute text, not EUR-Lex full text - Bilingual system -- French and Dutch texts both have official status; always verify the authoritative language version for your jurisdiction

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 Ordre des barreaux francophones et germanophone (OBFG) / Orde van Vlaamse Balies (OVB) compliance guidance.

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Documentation

EU Integration Guide -- Detailed EU cross-reference documentation
EU Usage Examples -- Practical EU lookup examples
Security Policy -- Vulnerability reporting and scanning details
Disclaimer -- Legal disclaimers and professional use notices
Privacy -- Client confidentiality and data handling

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Development

Setup

git clone https://github.com/Ansvar-Systems/Belgium-law-mcp
cd Belgium-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 ejustice
npm run build:db                   # Rebuild SQLite database
npm run drift:detect               # Run drift detection
npm run check-updates              # Check for amendments and new statutes

Performance

Search Speed: <100ms for most FTS5 queries
Database Size: ~126 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 (Cour de cassation, Conseil d'État)
EU regulation cross-reference expansion
German-language Community texts
Regional law coverage (Wallonia, Flanders, Brussels-Capital)
Historical statute versions and amendment tracking

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Roadmap

[x] Core statute database with FTS5 search
[x] Full corpus ingestion (5,775 statutes, 142,743 provisions)
[x] EU law integration tools
[x] Vercel Streamable HTTP deployment

[x] Daily freshness checks
[ ] Court case law expansion
[ ] Historical statute versions (amendment tracking)
[ ] German-language Community law
[ ] Regional/community legislation coverage

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Citation

If you use this MCP server in academic research:

@software{belgian_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Belgian Law MCP Server: Production-Grade Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Belgium-law-mcp},
  note = {5,775 Belgian statutes with 142,743 provisions and EU law cross-references}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

Statutes & Legislation: Service public fédéral Justice (Belgian open government data)
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 started as our internal reference tool for Belgian and EU institutional law -- turns out everyone working at the EU-national interface has the same research frustrations.

So we're open-sourcing it. Navigating 5,775 statutes across two languages shouldn't require a law degree in both French and Dutch.

ansvar.eu -- Stockholm, Sweden

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<p align="center"> <sub>Built with care in Stockholm, Sweden</sub> </p>

Belgium-law-mcp