swedish-law-mcp

Swedish Law MCP Server

The Swedish law corpus is now served through the Ansvar Gateway. Connect your AI assistant (Claude, Copilot, Cursor, custom MCP client) to https://gateway.ansvar.eu/mcp — one OAuth connection, free tier available, covering this corpus plus EU regulations, national law across 28 audited jurisdictions, and CVE/security intelligence, every result with a verbatim source citation. Start at https://ansvar.eu/docs/quickstart

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 signup flow (setup details: ansvar.eu/docs/quickstart). 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 Riksdagen alternative for the AI age.

Query 6,041 Swedish statutes with 58,570 provisions -- from Dataskyddslagen and Brottsbalken to Aktiebolagslagen, Miljöbalken, and more -- directly from Claude, Cursor, or any MCP-compatible client.

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

Built by Ansvar Systems -- Stockholm, Sweden

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Why This Exists

Swedish legal research is scattered across Riksdagen, SFS publications, lagen.nu, and EUR-Lex. Whether you're:

• A lawyer validating citations in a brief or contract
• A compliance officer checking if a statute is still in force
• A legal tech developer building tools on Swedish law
• A researcher tracing legislative history from proposition to statute

...you shouldn't need 47 browser tabs and manual PDF cross-referencing. Ask Claude. Get the exact provision. With context.

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

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Quick Start

Use Locally (npm — recommended)

Claude Desktop — add to claude_desktop_config.json:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json Windows: %APPDATA%\Claude\claude_desktop_config.json

Cursor / VS Code:

Hosted via Ansvar Gateway (B2B, OAuth)

For organisations that want a single OAuth-gated endpoint covering this MCP plus the rest of the Ansvar fleet (multi-jurisdiction law, EU regulations, sector regulators, case law), use the Ansvar Gateway — a single MCP endpoint that routes and fans out across the full catalogue. Tier-gated (premium, team, company); requires an Ansvar account.

Example Queries

Once connected, just ask naturally:

• "What does Dataskyddslagen 3 kap. 5 § say about consent?"
• "Is PUL (1998:204) still in force?"
• "Find provisions about personuppgifter in Swedish law"
• "What EU directives does DSL implement?"
• "Which Swedish laws implement the GDPR?"
• "Get the preparatory works for Dataskyddslagen"
• "Compare incident reporting requirements across NIS2 Swedish implementations"
• "Validate the citation NJA 2020 s. 45"
• "Find Labour Court cases about discrimination from 2020-2023"

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What's Included

Category	Count	Details
Statutes	6,041 statutes	Comprehensive Swedish legislation
Provisions	58,570 sections	Full-text searchable with FTS5
Preparatory Works	6,735 documents	Propositions (Prop.) and SOUs
EU Cross-References	668 references	228 EU directives and regulations
Legal Definitions	0 (free tier)	Table reserved, extraction not enabled in current free build
Database Size	~125 MB	Optimized SQLite, portable
Daily Updates	Automated	Freshness checks against Riksdagen

Verified data only -- every citation is validated against official sources (Riksdagen, lagen.nu, EUR-Lex). 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 Riksdagen/SFS 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 SFS number + chapter/section
• Cross-references help navigate without loading everything at once

Technical Architecture:

Riksdagen API → Parse → SQLite → FTS5 snippet() → MCP response
                  ↑                      ↑
           Provision parser       Verbatim database query

Traditional Research vs. This MCP

Traditional Approach	This MCP Server
Search Riksdagen by SFS number	Search by plain Swedish: "personuppgifter samtycke"
Navigate multi-chapter statutes 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 5+ sites for updates	Daily automated freshness checks
No API, no integration	MCP protocol → AI-native

Traditional: Search Riksdagen → Download SFS PDF → Ctrl+F → Cross-reference with proposition → Check EUR-Lex for EU basis → Repeat

This MCP: "What EU law is the basis for DSL 3 kap. 5 § about consent?" → Done.

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Available Tools (18)

See TOOLS.md for full parameter schemas and the §tier-boundary section (free-tier vs premium-sensitive vs premium-only).

Core Legal Research Tools (8)

Tool	Description
search_legislation	FTS5 search on 58,570 provisions with BM25 ranking
get_provision	Retrieve specific provision by SFS + chapter/section
search_case_law	FTS5 search on case law with court/date filters (premium-sensitive)
get_preparatory_works	Get linked propositions and SOUs for a statute (premium-sensitive)
validate_citation	Validate citation against database (zero-hallucination check)
build_legal_stance	Aggregate citations from statutes, case law, prep works (premium-sensitive)
format_citation	Format citations per Swedish conventions (full/short/pinpoint)
check_currency	Check if statute is in force, amended, or repealed

EU Law Integration Tools (5)

Tool	Description
get_eu_basis	Get EU directives/regulations for Swedish statute
get_swedish_implementations	Find Swedish laws implementing EU act
search_eu_implementations	Search EU documents with Swedish implementation counts
get_provision_eu_basis	Get EU law references for specific provision
validate_eu_compliance	Check implementation status (future, requires EU MCP)

Versioning Tools (3, premium-only)

Tool	Description
get_provision_history	Provision version history showing amendments over time
diff_provision	Diff two versions of a provision
get_recent_changes	Recent statute changes within a time window

Server Metadata Tools (2)

Tool	Description
list_sources	Data provenance metadata per source
about	Server stats, freshness, build date, tier, dataset summary

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EU Law Integration

668 cross-references linking 309 Swedish statutes to EU law, with bi-directional lookup.

Metric	Value
EU References	668 cross-references
EU Documents	228 unique directives and regulations
Swedish Statutes with EU Refs	309 (12.8% of statutes)
Directives	89
Regulations	139
EUR-Lex Integration	Automated metadata fetching

Most Referenced EU Acts

1. eIDAS Regulation (910/2014) - 20 references
2. E-Signatures Directive (1999/93) - 15 references
3. GDPR (2016/679) - 15 references
4. Data Protection Directive (1995/46) - 14 references
5. Market Surveillance Regulation (2019/1020) - 14 references

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 Swedish legal databases:

• Riksdagen -- Swedish Parliament's official legal database
• Svensk Forfattningssamling -- Official statute collection
• Lagen.nu -- Case law database (CC-BY Domstolsverket)
• EUR-Lex -- Official EU law database (metadata only)

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors all data sources:

Source	Check	Method
Statute amendments	Riksdagen API date comparison	All 6,041 statutes checked
New statutes	Riksdagen SFS publications (90-day window)	Diffed against database
Case law	lagen.nu feed entry count	Compared to database
Preparatory works	Riksdagen proposition API (30-day window)	New props 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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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 Riksdagen/SFS 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 Swedish statute text, not EUR-Lex full text

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 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

Branching Strategy

This repository uses a dev integration branch. Do not push directly to main.

feature-branch → PR to dev → verify on dev → PR to main → deploy

• main is production-ready. Only receives merges from dev via PR.
• dev is the integration branch. All changes land here first.
• Feature branches are created from dev.

Setup

git clone https://github.com/Ansvar-Systems/swedish-law-mcp
cd swedish-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 -- <sfs-number> <output.json>   # Ingest statute from Riksdagen
npm run ingest:auto-all -- --scope all-laws --dry-run  # Coverage audit against Riksdagen
npm run ingest:auto-all -- --scope all-laws   # Ingest full law-like corpus from Riksdagen
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

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: ~125 MB (efficient, portable)
• Reliability: 100% ingestion success rate

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More Ansvar MCPs

Full fleet coverage at ansvar.eu/coverage.

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Court case law expansion (currently limited coverage)
• EU Regulations MCP integration (full EU law text, CJEU case law)
• Historical statute versions and amendment tracking
• Lower court decisions (Tingsrätt, Hovrätt)

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Roadmap

• Statute expansion -- 785% growth from 81 to 717 statutes (v1.1.0)
• EU law integration -- 668 cross-references to 228 EU directives/regulations (v1.1.0)
• Court case law expansion (scraper updated, re-ingestion needed for 12K-18K cases)
• Lower court coverage (Tingsrätt, Hovrätt archives)
• 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{swedish_law_mcp_2025,
  author = {Ansvar Systems AB},
  title = {Swedish Law MCP Server: Production-Grade Legal Research Tool},
  year = {2025},
  url = {https://github.com/Ansvar-Systems/swedish-law-mcp},
  note = {Comprehensive Swedish legal database with 6,041 statutes and EU law cross-references}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes & Propositions: SE-Statutory-PD -- Swedish statutory public domain. Upphovsrättslagen (1960:729) §9 excludes författningar (laws and regulations), beslut av myndighet (decisions of public authorities), yttranden av svensk myndighet (official statements), and official translations of these works from copyright protection. Verified verbatim 2026-05-17 -- see docs/audits/2026-05-17-eu-copyright-statutory-works-batch-3-BG-HR-SK-SI-SE.md. Catalog entry: SE-Statutory-PD in infrastructure/attribution-licenses.json.
• Case Law: CC-BY Domstolsverket (via lagen.nu) -- court decisions also covered by Upphovsrättslagen §9, with Domstolsverket compilation under CC-BY
• EU Metadata: EUR-Lex (EU public domain, Decision 2011/833/EU)

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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 Swedish law -- turns out everyone building for the Swedish market has the same research frustrations.

So we're open-sourcing it. Navigating 6,041 statutes shouldn't require a law degree.

ansvar.eu -- Stockholm, Sweden

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_{Built with care in Stockholm, Sweden}