Danish Law MCP Server

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One endpoint, one OAuth signup, access from any MCP-compatible client.

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.

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 Retsinformation alternative for the AI age.

Query 62,764 Danish laws -- from Databeskyttelsesloven and Straffeloven to Selskabsloven, Forvaltningsloven, and more -- directly from Claude, Cursor, or any MCP-compatible client.

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

Built by Ansvar Systems -- Stockholm, Sweden

Related MCP server: mcp-eur-lex

Why This Exists

Danish legal research means navigating retsinformation.dk, cross-referencing between lovbekendtgørelser (consolidated laws), forslag (bills), betænkninger (committee reports), and EUR-Lex. Whether you're:

• A lawyer validating citations in a brief or contract

• A compliance officer checking Databeskyttelsesloven obligations or GDPR alignment

• A legal tech developer building tools on Danish law

• A researcher tracing legislative history from lovforslag to enacted statute

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

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

Example Queries

Once connected, just ask naturally -- in Danish or English:

• "Hvad siger Databeskyttelsesloven § 5 om behandling af personoplysninger?"

• "Er Straffelovens § 263 om hacking stadig i kraft?"

• "Find bestemmelser om offentlighedsprincippet"

• "Hvad siger konkurrenceretten om misbrug af dominerende stilling?"

• "Valider citatet 'Straffelovens § 263'"

• "Opbyg en juridisk argumentation om GDPR-forpligtelser for virksomheder"

• "Which Danish laws implement the GDPR?"

• "What does Forvaltningsloven say about administrative procedures?"

What's Included

Verified data only -- every citation is validated against official sources (retsinformation.dk). Zero LLM-generated content.

See It In Action

Why This Works

Verbatim Source Text (No LLM Processing):

• All statute text is ingested from retsinformation.dk (Danish Ministry of Justice)

• Provisions are returned unchanged from SQLite FTS5 database rows

• Zero LLM summarization or paraphrasing -- the database contains statute text, not AI interpretations

Smart Context Management:

• Search returns ranked provisions with BM25 scoring (safe for context)

• Provision retrieval gives exact text by law identifier + paragraph/section

• Cross-references help navigate without loading everything at once

Technical Architecture:

retsinformation.dk API --> Parse --> SQLite --> FTS5 snippet() --> MCP response
                            ^                        ^
                     Provision parser         Verbatim database query

Traditional Research vs. This MCP

Traditional: Search retsinformation.dk → Download PDF → Ctrl+F → Cross-reference with betænkning → Check EUR-Lex for EU basis → Repeat

This MCP: "Hvad er EU-retsgrundlaget for Databeskyttelsesloven § 5 om samtykke?" → Done.

Available Tools (13)

Core Legal Research Tools (8)

EU Law Integration Tools (5)

EU Law Integration

Denmark is a full EU member state. Danish law directly transposes EU directives into national legislation:

The EU integration tools support bi-directional lookup: find which EU act a Danish statute transposes, or find all Danish laws implementing a given EU regulation.

Denmark and EU opt-outs: Denmark maintains opt-outs from certain EU policy areas (including Justice and Home Affairs, under Protocol 22 to the Maastricht Treaty). However, data protection law (GDPR), commercial law, and competition law are all fully aligned with EU frameworks. The EU tools in this MCP reflect full transposition coverage for these areas.

See EU_INTEGRATION_GUIDE.md for detailed documentation and EU_USAGE_EXAMPLES.md for practical examples.

Data Sources & Freshness

All content is sourced from authoritative Danish legal databases:

• Retsinformation -- The official Danish law portal, operated by the Danish Ministry of Justice. Provides the complete corpus of consolidated Danish laws (lovbekendtgørelser), acts (love), and statutory orders (bekendtgørelser).

• EUR-Lex -- Official EU law database (metadata only)

Data Provenance

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors retsinformation.dk for changes:

The workflow supports auto_update: true dispatch for automated sync, rebuild, version bump, and npm publishing.

Premium Tier

The premium tier adds version history, amendment tracking, and extended case law coverage:

Premium is enabled via the PREMIUM_ENABLED environment variable. Contact hello@ansvar.ai for access.

Security

This project uses multiple layers of automated security scanning:

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 retsinformation.dk publications (Danish Ministry of Justice). However:

• This is a research tool, not a substitute for professional legal counsel

• Court case coverage in the free tier 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 Danish statute text and EUR-Lex metadata, not substitute for full EUR-Lex legal text

• Municipal and regional regulations are not included -- this covers national Danish law only

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 Advokatsamfundet (Danish Bar Association) compliance guidance.

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

Development

Setup

git clone https://github.com/Ansvar-Systems/Denmark-law-mcp
cd Denmark-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 laws from retsinformation.dk
npm run ingest:auto-all -- --scope all-laws --dry-run  # Coverage audit
npm run ingest:auto-all -- --scope all-laws             # Ingest full corpus
npm run ingest:cases:full-archive          # Ingest case law (full archive)
npm run sync:cases                         # Ingest case law (incremental)
npm run sync:prep-works                    # Sync preparatory works
npm run extract:definitions                # Extract legal definitions
npm run build:db                           # Rebuild SQLite database
npm run check-updates                      # Check for amendments
npm run drift:detect                       # Run drift detection

Performance

• Search Speed: <100ms for most FTS5 queries

• Database Size: 1.6 GB (Fly.io deployment due to size)

• Reliability: 100% ingestion success rate

More Ansvar MCPs

Full fleet at ansvar.eu/gateway.

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Court case law expansion (Højesteret and Landsretter full archives)

• EU Regulations MCP integration (full EU law text, CJEU case law)

• Historical statute versions and amendment tracking

• Lower court decisions (Byretter archives)

• English translations for key statutes

Roadmap

• Full corpus ingestion -- 62,764 Danish laws from retsinformation.dk

• EU law integration -- Danish statute transposition cross-references

• Premium tier -- case law (3,918 rulings) and preparatory works (4,412 documents)

• Fly.io deployment -- 1.6 GB database hosted on Fly.io

• Court case law expansion (Byretter full archives)

• Historical statute versions (amendment tracking)

• English translations for key statutes

• Web API for programmatic access

Citation

If you use this MCP server in academic research:

@software{danish_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Danish Law MCP Server: Production-Grade Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Denmark-law-mcp},
  note = {Comprehensive Danish legal database with 62,764 laws and 620,940 provisions from retsinformation.dk}
}

License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Laws & Statutory Orders: DK-Statutory-PD — Danish statutory public domain. Ophavsretsloven §9 excludes laws, administrative orders, regulations, court decisions, and similar acts issued by a public authority from copyright protection. Verified verbatim 2026-05-17 — see docs/audits/2026-05-17-eu-copyright-statutory-works-batch-1a-AT-BE-DK-FI-FR.md. Catalog entry: DK-Statutory-PD in infrastructure/attribution-licenses.json.

• Case Law: Højesteret and Landsretter — same statutory basis (Ophavsretsloven §9 court-decision clause)

• EU Metadata: EUR-Lex (EU public domain, Decision 2011/833/EU)

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 Danish law -- turns out everyone building for the Danish and Nordic markets has the same research frustrations.

So we're open-sourcing it. Navigating 62,764 laws on retsinformation.dk shouldn't require a law degree.

ansvar.eu -- Stockholm, Sweden