German Law MCP

Germany-first law MCP server built from template-law-mcp, following the same quality principles used in the Dutch and Swedish law MCP projects:

deterministic, source-backed outputs
explicit citation parsing and validation
test-gated behavior with no speculative legal citations
practical current-law retrieval (not deep historical versioning by default)

Current status

Runtime shell is in place.
de adapter is implemented and registered.
Three source lanes are wired:
- statutes: gesetze-im-internet
- case law: rechtsprechung-im-internet
- preparatory works: dip-bundestag
German citation validation currently supports:
- § 823 Abs. 1 BGB
- Art. 1 Abs. 1 GG
SQLite-backed corpus is supported (GERMAN_LAW_DB_PATH).
Initial sample legislation remains as fallback when no database is present.
Advanced helpers are enabled:
- citation formatting (law.format_citation)
- currency checks (law.check_currency)
- legal stance bundles (law.build_legal_stance)
- EU linkage/compliance tools (law.get_eu_basis, law.search_eu_implementations, law.get_national_implementations, law.get_provision_eu_basis, law.validate_eu_compliance)

Quick Start

Use Remotely (No Install Needed)

Connect directly to the hosted version — zero dependencies, nothing to install.

Endpoint: https://german-law-mcp.vercel.app/mcp

Client	How to Connect
Claude.ai	Settings > Connectors > Add Integration > paste URL
Claude Code	`claude mcp add german-law --transport http https://german-law-mcp.vercel.app/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": {
    "german-law": {
      "type": "url",
      "url": "https://german-law-mcp.vercel.app/mcp"
    }
  }
}

GitHub Copilot — add to VS Code settings.json:

{
  "github.copilot.chat.mcp.servers": {
    "german-law": {
      "type": "http",
      "url": "https://german-law-mcp.vercel.app/mcp"
    }
  }
}

Use Locally (npm)

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

Cursor / VS Code:

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

Core tools

law.list_countries
law.describe_country
law.search_documents
law.search_case_law
law.get_preparatory_works
law.format_citation
law.check_currency
law.build_legal_stance
law.get_eu_basis
law.search_eu_implementations
law.get_national_implementations
law.get_provision_eu_basis
law.validate_eu_compliance
law.get_document
law.parse_citation
law.validate_citation
law.run_ingestion

100% accuracy roadmap

Execution plan and acceptance gates are documented in:

docs/ACCURACY_PLAN.md
docs/IMPLEMENTATION_STATUS.md

This roadmap is designed to bring German coverage and reliability to production parity with the Dutch and Swedish MCPs.

Current ingestion status (February 14, 2026):

statutes: 6870/6870 TOC coverage (91843 provisions)
case law: 5000 recent decisions ingested (latest-first practical window)
preparatory works: 89423 DIP records (Wahlperiode 19 + 20)

Environment

See .env.example.

LAW_COUNTRIES: comma-separated country filter (example: de)
GERMAN_LAW_DB_PATH: override SQLite path (default data/database.db)
GERMAN_LAW_INGEST_MAX_LAWS: optional cap used by law.run_ingestion
GERMAN_LAW_INGEST_MAX_CASES: optional cap for case-law ingestion
GERMAN_LAW_INGEST_MAX_PREP_WORKS: optional cap for preparatory-works ingestion
GERMAN_LAW_PREP_WAHLPERIODEN: comma-separated DIP Wahlperioden (default 20)
GERMAN_LAW_DIP_API_KEY: optional DIP API key override
GERMAN_LAW_INGEST_CASES_STOP_AFTER_EXISTING: optional case sync early-stop threshold
GERMAN_LAW_INGEST_PREP_STOP_AFTER_EXISTING: optional preparatory sync early-stop threshold
GERMAN_LAW_AUTO_UPDATE_*: defaults for auto-update cycle limits

CI/CD & Security

This repository uses GitHub Actions for automated quality and security enforcement:

Workflow	Schedule	Purpose
CI	Push / PR	Build, test (Node 20/22), type check
CodeQL	Push / PR / Weekly	Semantic code analysis (security-extended queries)
Trivy	Push / PR / Daily	Dependency vulnerability scanning (SARIF)
Semgrep	Push / PR	SAST — OWASP Top 10, secrets, JS/TS rules
Gitleaks	Push / PR	Secret scanning across full git history
OSSF Scorecard	Push / Weekly	Repository security hygiene scoring
Socket Security	Push / PR	Supply chain attack detection
Docker Security	Push / PR / Daily	Container image scanning + SBOM (CycloneDX, SPDX)
Data Freshness	Daily	gesetze-im-internet.de update check, auto-issue creation
Publish	Tag `v*`	npm publish (with provenance) + MCP Registry
MCPB Bundle	Tag `v*`	MCPB distribution bundle

Important Disclaimers

Legal Advice

THIS TOOL IS NOT LEGAL ADVICE

Statute text is sourced from official gesetze-im-internet.de 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 German statute text, not EUR-Lex full text

Client Confidentiality

Queries go through the Claude API. For privileged or confidential matters, use on-premise deployment. Lawyers should consider Bundesrechtsanwaltskammer (German Federal Bar Association) confidentiality obligations when using cloud-based AI tools.

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/german-law-mcp (This Project)

Query 6,870 German statutes directly from Claude -- BGB, StGB, GG, and more. Full provision text with EU cross-references. npx @ansvar/german-law-mcp

Citation

If you use this MCP server in academic research:

@software{german_law_mcp_2025,
  author = {Ansvar Systems AB},
  title = {German Law MCP Server: Production-Grade Legal Research Tool},
  year = {2025},
  url = {https://github.com/Ansvar-Systems/German-law-mcp},
  note = {Comprehensive German legal database with 6,870 statutes, 91,843 provisions, and EU cross-references}
}

Legal

License: Apache-2.0
Security policy: see SECURITY.md
Contribution guidelines: see CONTRIBUTING.md

Data Licenses

Statutes & Regulations: gesetze-im-internet.de (public domain, German federal government)
Case Law: rechtsprechung-im-internet.de (public domain)
Preparatory Works: DIP Bundestag (public domain)
EU Metadata: EUR-Lex (EU public domain)

About Ansvar Systems

We build AI-accelerated compliance and legal research tools for the European market. This MCP server is part of our growing suite of jurisdiction-specific legal research tools.

ansvar.eu -- Stockholm, Sweden

Architecture and adapter rollout

docs/ARCHITECTURE.md
docs/COUNTRY_CHECKLIST.md
docs/AUTO_UPDATE.md

german-law-mcp

Quick Install