Latvian Law MCP Server

Latvian Law MCP Server

The Latvijas Vēstnesis alternative for the AI age.

Query 2,249 Latvian statutes -- from the Fizisko personu datu apstrādes likums and Krimināllikums to the Civillikums, Darba likums, and more -- directly from Claude, Cursor, or any MCP-compatible client.

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

Built by Ansvar Systems -- Stockholm, Sweden

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Why This Exists

Latvian legal research means navigating likumi.lv, the Latvijas Vēstnesis official gazette, and EUR-Lex for EU implementation status -- across a comprehensive system of codes and regulations. Whether you're:

• A lawyer validating citations before the Augstākā tiesa (Supreme Court) or Satversmes tiesa (Constitutional Court)
• A compliance officer checking GDPR implementation under Fizisko personu datu apstrādes likums or NIS2 requirements
• A legal tech developer building tools on Latvian law
• A researcher tracing EU directive transposition across 2,249 statutes

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

This MCP server makes Latvian 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-lv/mcp

Claude Desktop -- add to claude_desktop_config.json:

{
  "mcpServers": {
    "latvian-law": {
      "type": "url",
      "url": "https://mcp.ansvar.eu/law-lv/mcp"
    }
  }
}

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

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

Use Locally (npm)

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

Cursor / VS Code:

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

Example Queries

Once connected, just ask naturally:

• "Ko nosaka Fizisko personu datu apstrādes likuma 25. pants par datu apstrādi?"
• "Vai Krimināllikums ir spēkā?"
• "Meklēt 'personas datu aizsardzība' Latvijas tiesību aktos"
• "Kādi ES tiesību akti ir Darba likuma pamatā?"
• "Kuri Latvijas likumi īsteno NIS2 direktīvu?"
• "Ko paredz Civillikuma 1785. pants par saistību tiesībām?"
• "Validēt citātu 'Fizisko personu datu apstrādes likums, 25. pants'"
• "Salīdzināt datu aizsardzības prasības dažādās NIS2 Latvijas implementācijās"

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What's Included

Verified data only -- every citation is validated against official sources (likumi.lv, Latvijas Vēstnesis). Zero LLM-generated content.

The premium dataset is substantial: 127,042 court decisions from Latvia's three levels of courts plus 29,516 preparatory works.

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See It In Action

Why This Works

Verbatim Source Text (No LLM Processing):

• All statute text is ingested from likumi.lv (the official consolidated legislation portal, maintained by the Republic of Latvia)
• 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 statute identifier + section number
• Cross-references help navigate without loading everything at once

Technical Architecture:

likumi.lv --> Parse --> SQLite --> FTS5 snippet() --> MCP response
               ^                        ^
        Provision parser         Verbatim database query

Traditional Research vs. This MCP

Traditional: Meklēt likumi.lv --> Pārvietoties daudzpantu likumos --> Ctrl+F --> Salīdzināt ar ES direktīvām --> Atkārtot

This MCP: "Kāds ES tiesību akts ir Fizisko personu datu apstrādes likuma 25. panta pamatā?" --> Done.

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Available Tools (13)

Core Legal Research Tools (8)

EU Law Integration Tools (5)

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EU Law Integration

Latvia joined the EU on 1 May 2004. All EU regulations apply directly; directives require transposition into Latvian law.

Key EU-Derived Latvian Legislation

1. Fizisko personu datu apstrādes likums -- GDPR implementation (Regulation 2016/679)
2. Informācijas tehnoloģiju drošības likums -- NIS2 transposition (Directive 2022/2555)
3. Finanšu instrumentu tirgus likums -- MiFID II transposition
4. Elektronisko sakaru likums -- Electronic Communications Code transposition
5. Noziedzīgi iegūtu līdzekļu likums -- AML directive transposition

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 Latvian legal databases:

• likumi.lv -- Official consolidated legislation, Republic of Latvia
• Latvijas Vēstnesis -- Official Gazette of the Republic of Latvia
• EUR-Lex -- Official EU law database (cross-reference metadata)

Data Provenance

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors likumi.lv for changes:

Verified data only -- every citation is validated against official sources. Zero LLM-generated content.

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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 likumi.lv (official consolidated legislation). However:

• This is a research tool, not a substitute for professional legal counsel
• Court case coverage in the free tier is not included -- consult the Augstākā tiesa (AT) and Satversmes tiesa databases directly; 127,042 decisions are available in the Premium tier
• Verify critical citations against primary sources before court filings
• EU cross-references are derived from statute text, not EUR-Lex full text analysis
• Consolidated versions on likumi.lv are authoritative but verify promulgation dates against Latvijas Vēstnesis for court proceedings

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. Consult Latvijas Zvērinātu advokātu padome (Latvian Council of Sworn Advocates) guidelines on AI use in legal practice.

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Development

Setup

git clone https://github.com/Ansvar-Systems/Latvian-law-mcp
cd Latvian-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 statutes from likumi.lv
npm run ingest:linked             # Ingest linked legislation
npm run ingest:corpus             # Full corpus ingestion
npm run build:db                  # Rebuild SQLite database
npm run drift:detect              # Run drift detection against anchors
npm run check-updates             # Check for amendments

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: 131 MB (optimized, portable)
• Reliability: 100% ingestion success rate across 2,249 statutes

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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. npx @ansvar/eu-regulations-mcp

@ansvar/lithuanian-law-mcp

Query Lithuanian legislation -- neighbouring Baltic state. npx @ansvar/lithuanian-law-mcp

@ansvar/estonian-law-mcp

Query Estonian legislation -- fellow Baltic state. npx @ansvar/estonian-law-mcp

@ansvar/security-controls-mcp

Query 261 security frameworks -- ISO 27001, NIST CSF, SOC 2, CIS Controls, SCF, and more. npx @ansvar/security-controls-mcp

70+ national law MCPs covering Austria, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Lithuania, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and more.

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Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Court case law expansion (free tier -- Augstākā tiesa decisions)
• EU cross-reference expansion (full directive-to-statute mapping)
• Historical statute versions and amendment tracking
• Lower court decisions (Apgabaltiesa, Rajona tiesa archives)

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Roadmap

• Core statute database with FTS5 search
• Full corpus ingestion (2,249 statutes, 57,679 provisions)
• EU law integration tools
• Vercel Streamable HTTP deployment
• npm package publication
• Premium dataset: 127,042 case law decisions + 29,516 preparatory works
• Court case law expansion (free tier)
• Full EU text integration (via @ansvar/eu-regulations-mcp)
• Lower court coverage (Apgabaltiesa archives)
• Historical statute versions (amendment tracking)
• Web API for programmatic access

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Citation

If you use this MCP server in academic research:

@software{latvian_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Latvian Law MCP Server: AI-Powered Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Latvian-law-mcp},
  note = {2,249 Latvian statutes with 57,679 provisions and EU law cross-references}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes & Legislation: Republic of Latvia (public domain government works, via likumi.lv)
• 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 Latvian law -- turns out everyone building for the Baltic and EU markets has the same research frustrations.

So we're open-sourcing it. Navigating 2,249 statutes and their EU source directives shouldn't require a law degree.

ansvar.eu -- Stockholm, Sweden

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