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

Client	How to Connect
Claude.ai	Settings > Connectors > Add Integration > paste URL
Claude Code	claude mcp add latvian-law --transport http https://mcp.ansvar.eu/law-lv/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": {
    "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

Category	Count	Details
Statutes	2,249 statutes	Comprehensive Latvian legislation from likumi.lv
Provisions	57,679 sections	Full-text searchable with FTS5
Premium: Case Law	127,042 decisions	Augstākā tiesa, Satversmes tiesa, Administratīvā tiesa (Premium tier)
Premium: Preparatory Works	29,516 documents	Saeima anotācijas and explanatory reports (Premium tier)
Database Size	131 MB	Optimized SQLite, portable
Daily Updates	Automated	Freshness checks against likumi.lv

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 Approach	This MCP Server
Search likumi.lv by statute name	Search by plain Latvian: "personas datu apstrāde piekrišana"
Navigate multi-section statutes manually	Get the exact provision with context
Manual cross-referencing between laws	build_legal_stance aggregates across sources
"Vai šis likums ir spēkā?" -- check manually	check_currency tool -- answer in seconds
Find EU basis -- dig through EUR-Lex	get_eu_basis -- linked EU directives instantly
No API, no integration	MCP protocol -- AI-native

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)

Tool	Description
search_legislation	FTS5 full-text search across 57,679 provisions with BM25 ranking. Supports Latvian, quoted phrases, boolean operators, prefix wildcards
get_provision	Retrieve specific provision by statute identifier + section (e.g., "Fizisko personu datu apstrādes likums" + "25")
check_currency	Check if a statute is in force, amended, or repealed
validate_citation	Validate citation against database -- zero-hallucination check
build_legal_stance	Aggregate citations from multiple statutes for a legal topic
format_citation	Format citations per Latvian conventions (full/short/pinpoint)
list_sources	List all available statutes with metadata, coverage scope, and data provenance
about	Server info, capabilities, dataset statistics, and coverage summary

EU Law Integration Tools (5)

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

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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.

Metric	Value
EU Membership	Since 1 May 2004
Acquis communautaire	Full EU legal order applies
GDPR	Implemented via Fizisko personu datu apstrādes likums
NIS2	Transposed via Informācijas tehnoloģiju drošības likums
AML5	Implemented via Noziedzīgi iegūtu līdzekļu legalizācijas un terorisma finansēšanas novēršanas likums
EUR-Lex Integration	Cross-references link Latvian statutes to source EU acts

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

Field	Value
Authority	Republic of Latvia (Latvijas Republika)
Languages	Latvian (sole official legislative language)
Coverage	All national Latvian legislation; EU regulations apply directly
Source	likumi.lv

Automated Freshness Checks (Daily)

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

Check	Method
Statute amendments	likumi.lv API date comparison against all 2,249 statutes
New statutes	likumi.lv index comparison (90-day window)
Repealed statutes	Status change detection
EU reference staleness	Flagged if >90 days old

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:

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
Socket.dev	Supply chain attack detection	PRs
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 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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