Norwegian Law MCP Server

Norwegian Law MCP Server

▶ Try this MCP instantly via Ansvar Gateway

50 free queries/day · no card required · OAuth signup at ansvar.eu/gateway

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.

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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).

Norwegian statutes and central regulations via api.lovdata.no — NLOD 2.0 licensed.

Query current Norwegian statutes (gjeldende lover) directly from Claude, Cursor, or any MCP-compatible client. Data sourced from Lovdata's sanctioned bulk API under NLOD 2.0.

Built by Ansvar Systems

Data source: Lovdata Open Data API (api.lovdata.no/v1/publicData). This MCP uses only the publicly-licensed bulk download endpoint. It does not scrape lovdata.no/dokument/ HTML.

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Why This Exists

Norwegian legal research is scattered across Lovdata, Norsk Lovtidend publications, 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 Norwegian law
• A researcher tracing legislative history from proposition to statute

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

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

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Quick Start

Use via Gateway (No Install Needed)

Connect to the hosted version through the Ansvar Gateway — zero dependencies, nothing to install.

Endpoint: https://gateway.ansvar.eu (OAuth 2.1 — requires an Ansvar account)

Use Locally (npm)

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:

Example Queries

Once connected, ask naturally:

• "What does Personopplysningsloven § 5 say about data minimisation?"
• "Is LOV-2018-06-15-38 (Personopplysningsloven) still in force?"
• "Find provisions about samtykke in Norwegian law"
• "Which Norwegian laws implement the GDPR?"
• "Get the text of Personopplysningsloven chapter 3"
• "Validate the citation LOV-2018-06-15-38"
• "Find regulations about personvern"

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What's Included

Verified data only — every citation is validated against api.lovdata.no. 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 Stiftelsen Lovdata via the official bulk-download API
• 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
• Provision retrieval gives exact text by LOV identifier + chapter/section
• Cross-references help navigate without loading everything at once

Technical Architecture:

api.lovdata.no → Parse → SQLite → FTS5 snippet() → MCP response
                  ↑                      ↑
           Provision parser       Verbatim database query

Traditional Research vs. This MCP

Traditional: Open lovdata.no → Find LOV number → Navigate chapters → Check for amendments → Cross-reference with Norsk Lovtidend → Repeat

This MCP: "What are the consent requirements under Personopplysningsloven?" → Done.

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Available Tools

Core Legal Research Tools

See TOOLS.md for full tool documentation.

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EU Law Integration

Norway is a member of the EEA (European Economic Area) and has implemented a large body of EU legislation through the EEA Agreement. Many Norwegian statutes transpose EU directives — for example, Personopplysningsloven (LOV-2018-06-15-38) implements the GDPR as adopted through the EEA Agreement (EØS-avtalen).

The get_eu_basis tool maps Norwegian statutes to the EU acts they implement.

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Data Sources & Freshness

All content is sourced from Stiftelsen Lovdata via the Open Data API:

• api.lovdata.no — Lovdata's official bulk-download endpoint (NLOD 2.0)

Automated Freshness Checks

A GitHub Actions workflow monitors data sources for updates. The MCP includes staleness warnings when data exceeds the configured threshold.

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Security

This project uses multiple layers of automated security scanning:

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 Stiftelsen Lovdata via api.lovdata.no. However:

• This is a research tool, not a substitute for professional legal counsel
• Case law is not included — use norwegian-court-decisions-mcp for Høyesterett, Lagmannsrett, and tingretten decisions
• Verify critical citations against primary sources (lovdata.no) for court filings
• EU cross-references are derived from Norwegian 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 Advokatforeningen compliance guidance.

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Documentation

• Security Policy — Vulnerability reporting and scanning details
• Disclaimer — Legal disclaimers and professional use notices
• Privacy — Client confidentiality and data handling
• Coverage — Corpus statistics (auto-generated after ingestion)
• Coverage Limitations — What is and is not included
• Data Licenses — Source attribution and license details
• Tools — Full tool documentation

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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/norwegian-law-mcp
cd norwegian-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 from api.lovdata.no
npm run build:db                                  # Rebuild SQLite database
npm run check-updates                             # Check for amendments
npm run drift:detect                              # Detect corpus drift

Performance

• Search Speed: <100ms for most FTS5 queries
• Reliability: Sourced exclusively from the official Lovdata API

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More Ansvar MCPs

Full fleet at ansvar.eu/gateway.

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• EU EEA cross-reference mapping (Personopplysningsloven → GDPR, etc.)
• Bokmål/Nynorsk variant deduplication improvements
• Historical statute versions and amendment tracking

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes & Regulations: NLOD 2.0 (Norwegian Licence for Open Government Data), distributed by Stiftelsen Lovdata
• See DATA_LICENSES.md for full attribution requirements

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About Ansvar Systems

We build AI-accelerated compliance and legal research tools for the European market.

ansvar.eu