Danish Law MCP Server

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

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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.

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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-dk/mcp

Note: This server is hosted on Fly.io rather than Vercel because the database (1.6 GB) exceeds Vercel's 50 MB deployment limit. The endpoint is otherwise identical in behaviour to other Ansvar Law MCP servers.

Client	How to Connect
Claude.ai	Settings > Connectors > Add Integration > paste URL
Claude Code	claude mcp add danish-law --transport http https://mcp.ansvar.eu/law-dk/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": {
    "danish-law": {
      "type": "url",
      "url": "https://mcp.ansvar.eu/law-dk/mcp"
    }
  }
}

GitHub Copilot -- add to VS Code settings.json:

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

Use Locally (npm)

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

Cursor / VS Code:

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

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?"

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What's Included

Category	Count	Details
Laws	62,764 laws	Complete corpus from retsinformation.dk
Provisions	620,940 sections	Full-text searchable with FTS5
Premium: Case Law	3,918 rulings	Højesteret, Landsretter decisions
Premium: Preparatory Works	4,412 documents	Lovforslag, betænkninger
Database Size	1.6 GB	Optimized SQLite, hosted on Fly.io
Daily Updates	Automated	Freshness checks against retsinformation.dk

Verified data only -- every citation is validated against official sources (retsinformation.dk). 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 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 Approach	This MCP Server
Search retsinformation.dk by document number	Search by plain Danish: "personoplysninger samtykke"
Navigate multi-paragraph statutes manually	Get the exact provision with context
Manual cross-referencing between laws	build_legal_stance aggregates across sources
"Er denne lov stadig i kraft?" → check manually	check_currency tool → answer in seconds
Find EU basis → dig through EUR-Lex	get_eu_basis → linked EU directives instantly
Check multiple sites for amendments	Daily automated freshness checks
No API, no integration	MCP protocol → AI-native

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.

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Available Tools (13)

Core Legal Research Tools (8)

Tool	Description
search_legislation	FTS5 search on 620,940 provisions with BM25 ranking. Supports quoted phrases, boolean operators, prefix wildcards
get_provision	Retrieve specific provision by law identifier + paragraph/section (e.g., "Straffeloven" + "263")
check_currency	Check if a law is in force, amended, or repealed
validate_citation	Validate citation against database -- zero-hallucination check. Supports "Straffelovens § 263", "Databeskyttelsesloven § 5"
build_legal_stance	Aggregate citations from multiple laws for a legal topic
format_citation	Format citations per Danish conventions (full/short/pinpoint)
list_sources	List all available laws 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 that a Danish statute transposes (e.g., Databeskyttelsesloven → GDPR)
get_danish_implementations	Find Danish laws implementing a specific EU act
search_eu_implementations	Search EU documents with Danish implementation counts
get_provision_eu_basis	Get EU law references for a specific provision
validate_eu_compliance	Check transposition status of Danish statutes against EU directives

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EU Law Integration

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

Danish Law	EU Basis
Databeskyttelsesloven	GDPR (Regulation 2016/679)
Implementeret e-Privacy	ePrivacy Directive (2002/58/EC)
Konkurrenceretten	EU Treaty Articles 101-102 (TFEU)

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.

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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

Field	Value
Authority	Danish Ministry of Justice / Retsinformation
Retrieval method	Bulk download from retsinformation.dk API
Language	Danish (primary)
License	Open data (retsinformation.dk)
Coverage	All 62,764 consolidated Danish laws
Last ingested	2026-02-22

Automated Freshness Checks (Daily)

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

Source	Check	Method
Law amendments	retsinformation.dk API date comparison	All 62,764 laws checked
New laws	retsinformation.dk publications (90-day window)	Diffed against database
Case law	Court portal entry count	Compared to database
Preparatory works	Lovforslag API (30-day window)	New proposals detected
EU reference staleness	Git commit timestamps	Flagged if >90 days old

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

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Premium Tier

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

Feature	Free	Premium
Full statute corpus (62,764 laws)	Yes	Yes
Full-text search (620,940 provisions)	Yes	Yes
EU law cross-references	Yes	Yes
Citation validation	Yes	Yes
Case law (3,918 rulings)	No	Yes
Preparatory works (4,412 documents)	No	Yes
Amendment history (get_*_history)	No	Yes
Version diff (diff_*)	No	Yes
Recent changes (get_recent_changes)	No	Yes

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

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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 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.

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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/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

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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/danish-law-mcp (This Project)

Query 62,764 Danish laws directly from Claude -- Databeskyttelsesloven, Straffeloven, Selskabsloven, Forvaltningsloven, Konkurrenceretten, and more. Full provision text with EU cross-references. npx @ansvar/danish-law-mcp

@ansvar/swedish-law-mcp

Query Swedish statutes directly from Claude -- DSL, BrB, ABL, and more. Full provision text with EU cross-references. npx @ansvar/swedish-law-mcp

@ansvar/norwegian-law-mcp

Query Norwegian legislation directly from Claude -- Lovdata corpus with EU EEA cross-references. npx @ansvar/norwegian-law-mcp

@ansvar/us-regulations-mcp

Query US federal and state compliance laws -- HIPAA, CCPA, SOX, GLBA, FERPA, and more. npx @ansvar/us-regulations-mcp

@ansvar/ot-security-mcp

Query IEC 62443, NIST 800-82/53, and MITRE ATT&CK for ICS -- Specialized for OT/ICS environments. npx @ansvar/ot-security-mcp

@ansvar/automotive-cybersecurity-mcp

Query UNECE R155/R156 and ISO 21434 -- Automotive cybersecurity compliance. npx @ansvar/automotive-cybersecurity-mcp

@ansvar/sanctions-mcp

Offline-capable sanctions screening -- OFAC, EU, UN sanctions lists. pip install ansvar-sanctions-mcp

70+ national law MCPs covering Australia, Belgium, Brazil, Canada, Finland, France, Germany, Ghana, Iceland, India, Ireland, Israel, Italy, Japan, Kenya, Netherlands, Nigeria, Norway, Poland, Singapore, Slovenia, South Korea, Sweden, Switzerland, Thailand, UAE, UK, and more.

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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

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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
• npm package publication -- @ansvar/danish-law-mcp
• Court case law expansion (Byretter full archives)
• Full EU text integration (via @ansvar/eu-regulations-mcp)
• Historical statute versions (amendment tracking)
• English translations for key statutes
• Web API for programmatic access

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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}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Laws & Statutory Orders: Danish Ministry of Justice via retsinformation.dk (open data)
• Case Law: Højesteret and Landsretter (Danish court system)
• 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 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

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