{ "markdown": "# Hungarian Law MCP Server\n\n\n> **The Hungarian 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 dozens of audited jurisdictions (Europe + the US), and CVE/security intelligence, every result with a verbatim source citation. Start at https://ansvar.eu/docs/quickstart\n\n### Connect\n\n**Claude Code** (one line):\n\n```bash\nclaude mcp add ansvar --transport http https://gateway.ansvar.eu/mcp\n```\n\n**Claude Desktop / Cursor** — add to `claude_desktop_config.json` (or `mcp.json`):\n\n```json\n{\n \"mcpServers\": {\n \"ansvar\": {\n \"type\": \"url\",\n \"url\": \"https://gateway.ansvar.eu/mcp\"\n }\n }\n}\n```\n\n**Claude.ai** — Settings → Connectors → Add custom connector → paste `https://gateway.ansvar.eu/mcp`\n\nFirst request opens an OAuth signup flow (setup details: [ansvar.eu/docs/quickstart](https://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.\n\n---\n\n## Self-host this MCP\n\nYou can also clone this repo and build the corpus yourself. The schema,\nfetcher, and tool implementations all live here. What is not in the repo is\nthe pre-built database — TDM and standards-licensing constraints on the\nupstream sources mean we host the corpus on Ansvar infrastructure rather\nthan redistribute it as a public artifact.\n\nBuild your own: run this repo's ingestion script (entry-point varies per\nrepo — typically `scripts/ingest.sh`, `npm run ingest`, or `make ingest`;\ncheck the repo root).\n\n\n\n**The Magyar Közlöny alternative for the AI age.**\n\n[![MCP Registry](https://img.shields.io/badge/MCP-Registry-blue)](https://registry.modelcontextprotocol.io)\n[![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)\n[![GitHub stars](https://img.shields.io/github/stars/Ansvar-Systems/Hungarian-law-mcp?style=social)](https://github.com/Ansvar-Systems/Hungarian-law-mcp)\n[![CI](https://github.com/Ansvar-Systems/Hungarian-law-mcp/actions/workflows/ci.yml/badge.svg)](https://github.com/Ansvar-Systems/Hungarian-law-mcp/actions/workflows/ci.yml)\n[![Daily Data Check](https://github.com/Ansvar-Systems/Hungarian-law-mcp/actions/workflows/check-updates.yml/badge.svg)](https://github.com/Ansvar-Systems/Hungarian-law-mcp/actions/workflows/check-updates.yml)\n[![Database](https://img.shields.io/badge/database-pre--built-green)](docs/EU_INTEGRATION_GUIDE.md)\n[![Provisions](https://img.shields.io/badge/provisions-130%2C124-blue)](docs/EU_INTEGRATION_GUIDE.md)\n\nQuery **4,314 Hungarian statutes** -- from the GDPR végrehajtási törvény and Büntető Törvénykönyv to the Polgári Törvénykönyv, Munka Törvénykönyve, and more -- directly from Claude, Cursor, or any MCP-compatible client.\n\nIf you're building legal tech, compliance tools, or doing Hungarian legal research, this is your verified reference database.\n\nBuilt by [Ansvar Systems](https://ansvar.eu) -- Stockholm, Sweden\n\n---\n\n## Why This Exists\n\nHungarian legal research is scattered across njt.hu (Nemzeti Jogszabálytár), Magyar Közlöny publications, and EUR-Lex. Whether you're:\n- A **lawyer** validating citations in a brief or contract\n- A **compliance officer** checking if a statute is still in force\n- A **legal tech developer** building tools on Hungarian law\n- A **researcher** tracing legislative provisions across 4,314 statutes\n\n...you shouldn't need dozens of browser tabs and manual cross-referencing. Ask Claude. Get the exact provision. With context.\n\nThis MCP server makes Hungarian law **searchable, cross-referenceable, and AI-readable**.\n\n---\n\n## Example Queries\n\nOnce connected, just ask naturally:\n\n- *\"Keresés 'adatvédelem' -- milyen kötelezettségeket állapít meg a GDPR végrehajtási törvény?\"*\n- *\"Hatályban van-e a Büntető Törvénykönyv 370. §-a?\"*\n- *\"Találj rendelkezéseket a munkavállalók védelméről a Munka Törvénykönyvében\"*\n- *\"Melyik uniós irányelvet ültette át a Polgári Törvénykönyv fogyasztóvédelmi fejezete?\"*\n- *\"Melyik magyar törvények ültetik át a GDPR-t?\"*\n- *\"Ellenőrizd a hivatkozást: Btk. 370. § (1) bek.\"*\n- *\"Állíts össze jogi álláspontot az adatvédelmi incidensek bejelentési kötelezettségéről\"*\n- *\"Megfelel-e a magyar kibervédelmi törvény a NIS2 irányelv követelményeinek?\"*\n\n---\n\n## What's Included\n\n| Category | Count | Details |\n|----------|-------|---------|\n| **Statutes** | 4,314 statutes | Comprehensive Hungarian legislation from njt.hu |\n| **Provisions** | 130,124 sections | Full-text searchable with FTS5 |\n| **Case Law** | 11,519 decisions | Court decisions (premium tier) |\n| **EU Cross-References** | Included | Directives and regulations linked to Hungarian transpositions |\n| **Database Size** | 282 MB | Optimized SQLite, portable |\n| **Daily Updates** | Automated | Freshness checks against njt.hu |\n\n**Verified data only** -- every citation is validated against official sources (njt.hu, Magyar Közlöny). Zero LLM-generated content.\n\n---\n\n## See It In Action\n\n### Why This Works\n\n**Verbatim Source Text (No LLM Processing):**\n- All statute text is ingested from njt.hu (Nemzeti Jogszabálytár) official sources\n- Provisions are returned **unchanged** from SQLite FTS5 database rows\n- Zero LLM summarization or paraphrasing -- the database contains statute text, not AI interpretations\n\n**Smart Context Management:**\n- Search returns ranked provisions with BM25 scoring (safe for context)\n- Provision retrieval gives exact text by statute identifier + section\n- Cross-references help navigate without loading everything at once\n\n**Technical Architecture:**\n```\nnjt.hu API → Parse → SQLite → FTS5 snippet() → MCP response\n ↑ ↑\n Provision parser Verbatim database query\n```\n\n### Traditional Research vs. This MCP\n\n| Traditional Approach | This MCP Server |\n|---------------------|-----------------|\n| Search njt.hu by statute title | Search by plain Hungarian: *\"személyes adat hozzájárulás\"* |\n| Navigate multi-section statutes manually | Get the exact provision with context |\n| Manual cross-referencing between laws | `build_legal_stance` aggregates across sources |\n| \"Is this statute still in force?\" → check manually | `check_currency` tool → answer in seconds |\n| Find EU basis → dig through EUR-Lex | `get_eu_basis` → linked EU directives instantly |\n| Check multiple sites for updates | Daily automated freshness checks |\n| No API, no integration | MCP protocol → AI-native |\n\n**Traditional:** Search njt.hu → Download PDF → Ctrl+F → Cross-reference → Check EUR-Lex for EU basis → Repeat\n\n**This MCP:** *\"Melyik GDPR-cikk ültette át a különleges adatkezelési kategóriákra vonatkozó 9. §-t?\"* → Done.\n\n---\n\n## Available Tools (13)\n\n### Core Legal Research Tools (8)\n\n| Tool | Description |\n|------|-------------|\n| `search_legislation` | FTS5 full-text search across 130,124 provisions with BM25 ranking |\n| `get_provision` | Retrieve specific provision by statute identifier + section/paragraph |\n| `validate_citation` | Validate citation against database -- zero-hallucination check |\n| `build_legal_stance` | Aggregate citations from multiple statutes for a legal topic |\n| `format_citation` | Format citations per Hungarian conventions (full/short/pinpoint) |\n| `check_currency` | Check if statute is in force, amended, or repealed |\n| `list_sources` | List all available statutes with metadata and data provenance |\n| `about` | Server info, capabilities, dataset statistics, and coverage summary |\n\n### EU Law Integration Tools (5)\n\n| Tool | Description |\n|------|-------------|\n| `get_eu_basis` | Get EU directives/regulations that underpin a Hungarian statute |\n| `get_hungarian_implementations` | Find Hungarian laws implementing a specific EU act |\n| `search_eu_implementations` | Search EU documents with Hungarian implementation counts |\n| `get_provision_eu_basis` | Get EU law references for a specific provision |\n| `validate_eu_compliance` | Check implementation status of Hungarian statutes against EU directives |\n\n---\n\n## EU Law Integration\n\nHungary is an EU member state. Hungarian legislation directly transposes EU directives and implements EU regulations, creating a traceable mapping between Hungarian and EU law.\n\nKey areas of EU-Hungarian law alignment:\n\n- **GDPR (2016/679)** -- implemented via the 2018. évi XXXVIII. törvény (információs önrendelkezési jogról és az információszabadságról szóló törvény módosítása)\n- **NIS2 Directive (2022/2555)** -- transposed into Hungarian cybersecurity legislation (kibervédelmi törvény)\n- **eIDAS Regulation (910/2014)** -- applicable directly; supplemented by Hungarian electronic identification rules\n- **DORA (2022/2554)** -- digital operational resilience obligations for the financial sector\n- **AI Act (2024/1689)** -- EU regulation applicable directly across all member states\n- **Consumer Protection Directives** -- implemented via the Fogyasztóvédelmi törvény\n\nThe EU bridge tools provide bi-directional lookup: find which Hungarian statutes implement a given EU act, or find which EU acts underpin a given Hungarian provision.\n\n| Metric | Value |\n|--------|-------|\n| **EU Member State** | Since 2004 |\n| **Legal System** | Civil law (continental European tradition) |\n| **Official Gazette** | Magyar Közlöny (magyarkozlony.hu) |\n| **Legislation Repository** | Nemzeti Jogszabálytár (njt.hu) |\n| **EUR-Lex Integration** | Automated metadata fetching |\n\nSee [EU_INTEGRATION_GUIDE.md](docs/EU_INTEGRATION_GUIDE.md) for detailed documentation.\n\n---\n\n## Data Sources & Freshness\n\nAll content is sourced from authoritative Hungarian legal databases:\n\n- **[njt.hu](https://njt.hu/)** -- Nemzeti Jogszabálytár (National Legislation Repository), the official consolidated Hungarian legal database\n- **[Magyar Közlöny](https://magyarkozlony.hu/)** -- Official Gazette (primary legislative publication)\n- **[EUR-Lex](https://eur-lex.europa.eu/)** -- Official EU law database (metadata only)\n\n### Automated Freshness Checks (Daily)\n\nA [daily GitHub Actions workflow](.github/workflows/check-updates.yml) monitors all data sources:\n\n| Source | Check | Method |\n|--------|-------|--------|\n| **Statute amendments** | njt.hu API date comparison | All 4,314 statutes checked |\n| **New statutes** | Magyar Közlöny publications (90-day window) | Diffed against database |\n| **EU reference staleness** | Git commit timestamps | Flagged if >90 days old |\n\n---\n\n## Security\n\nThis project uses multiple layers of automated security scanning:\n\n| Scanner | What It Does | Schedule |\n|---------|-------------|----------|\n| **CodeQL** | Static analysis for security vulnerabilities | Weekly + PRs |\n| **Semgrep** | SAST scanning (OWASP top 10, secrets, TypeScript) | Every push |\n| **Gitleaks** | Secret detection across git history | Every push |\n| **Trivy** | CVE scanning on filesystem and npm dependencies | Daily |\n| **Docker Security** | Container image scanning + SBOM generation | Daily |\n| **Socket.dev** | Supply chain attack detection | PRs |\n| **OSSF Scorecard** | OpenSSF best practices scoring | Weekly |\n| **Dependabot** | Automated dependency updates | Weekly |\n\nSee [SECURITY.md](SECURITY.md) for the full policy and vulnerability reporting.\n\n---\n\n## Important Disclaimers\n\n### Legal Advice\n\n> **THIS TOOL IS NOT LEGAL ADVICE**\n>\n> Statute text is sourced from official njt.hu/Magyar Közlöny publications. However:\n> - This is a **research tool**, not a substitute for professional legal counsel\n> - **Verify critical citations** against primary sources for court filings\n> - **EU cross-references** are extracted from Hungarian statute text, not EUR-Lex full text\n> - **Always confirm** current in-force status via njt.hu before relying on a provision professionally\n\n**Before using professionally, read:** [DISCLAIMER.md](DISCLAIMER.md) | [PRIVACY.md](PRIVACY.md)\n\n### Client Confidentiality\n\nQueries go through the Claude API. For privileged or confidential matters, use on-premise deployment. See [PRIVACY.md](PRIVACY.md) for Magyar Ügyvédi Kamara (Hungarian Bar Association) compliance guidance.\n\n---\n\n## Documentation\n\n- **[EU Integration Guide](docs/EU_INTEGRATION_GUIDE.md)** -- Detailed EU cross-reference documentation\n- **[EU Usage Examples](docs/EU_USAGE_EXAMPLES.md)** -- Practical EU lookup examples\n- **[Security Policy](SECURITY.md)** -- Vulnerability reporting and scanning details\n- **[Disclaimer](DISCLAIMER.md)** -- Legal disclaimers and professional use notices\n- **[Privacy](PRIVACY.md)** -- Client confidentiality and data handling\n\n---\n\n## Development\n\n### Setup\n\n```bash\ngit clone https://github.com/Ansvar-Systems/Hungarian-law-mcp\ncd Hungarian-law-mcp\nnpm install\nnpm run build\nnpm test\n```\n\n### Running Locally\n\n```bash\nnpm run dev # Start MCP server\nnpx @anthropic/mcp-inspector node dist/index.js # Test with MCP Inspector\n```\n\n### Data Management\n\n```bash\nnpm run ingest # Ingest statutes from njt.hu\nnpm run build:db # Rebuild SQLite database\nnpm run check-updates # Check for amendments and new statutes\n```\n\n### Performance\n\n- **Search Speed:** <100ms for most FTS5 queries\n- **Database Size:** 282 MB (comprehensive corpus)\n- **Reliability:** 100% ingestion success rate\n\n---\n\n## More Ansvar MCPs\n\nFull fleet coverage at [ansvar.eu/coverage](https://ansvar.eu/coverage).\n## Contributing\n\nContributions welcome! See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.\n\nPriority areas:\n- Court case law expansion (Kúria, Constitutional Court)\n- EU Regulations MCP integration (full EU law text, CJEU case law)\n- Historical statute versions and amendment tracking\n- Government decrees (kormányrendeletek) expansion\n\n---\n\n## Roadmap\n\n- [x] Core statute database with FTS5 search\n- [x] Full corpus ingestion (4,314 statutes, 130,124 provisions)\n- [x] Case law database (11,519 decisions, premium tier)\n- [x] EU law integration tools\n- [x] Vercel Streamable HTTP deployment\n\n- [x] Daily freshness checks\n- [ ] Case law expansion (Kúria full archive)\n- [ ] Historical statute versions (amendment tracking)\n- [ ] Government decree expansion\n\n---\n\n## Citation\n\nIf you use this MCP server in academic research:\n\n```bibtex\n@software{hungarian_law_mcp_2026,\n author = {Ansvar Systems AB},\n title = {Hungarian Law MCP Server: Production-Grade Legal Research Tool},\n year = {2026},\n url = {https://github.com/Ansvar-Systems/Hungarian-law-mcp},\n note = {Comprehensive Hungarian legal database with 4,314 statutes and 130,124 provisions}\n}\n```\n\n---\n\n## License\n\nApache License 2.0. See [LICENSE](./LICENSE) for details.\n\n### Data Licenses\n\nAnsvar attribution code: **`Hungarian-Szjt-Section-1-4`**. Basis: Szjt.\n(Act LXXVI of 1999 on Copyright) §1(4) — broad statutory-PD carve-out\nfor legislative and administrative materials.\n\n- **Statutes & Legislation:** Nemzeti Jogszabálytár (NJT) — canonical\n portal at [`njt.jog.gov.hu`](https://njt.jog.gov.hu) (migrated from\n `njt.hu`). Reused under Szjt. §1(4).\n- **EU Metadata:** EUR-Lex (EU public-domain notice).\n\n### Coverage scope\n\nHungarian Szjt. §1(4) is a broad statutory-PD carve-out covering\nlegislative acts, administrative acts, official decisions, and other\nofficial documents.\n\nSee `docs/audits/2026-05-17-eu-copyright-statutory-works-batch-2-HU-LU-PT-RO-GR.md`\nin the Ansvar architecture-documentation repo for the verbatim §1(4)\ntext and the coverage analysis.\n\n---\n\n## About Ansvar Systems\n\nWe build AI-accelerated compliance and legal research tools for the European market. This MCP server started as our internal reference tool for Hungarian law -- turns out everyone building for the Hungarian and Central European markets has the same research frustrations.\n\nSo we're open-sourcing it. Navigating 4,314 statutes shouldn't require a law degree.\n\n**[ansvar.eu](https://ansvar.eu)** -- Stockholm, Sweden\n\n---\n\n

\n Built with care in Stockholm, Sweden\n

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