Uruguayan Law MCP Server

The IMPO alternative for the AI age.

Query Uruguayan legislation -- from the Ley 18.331 de Protección de Datos Personales and Código Penal to the Código Civil, Ley de Comercio Electrónico, and more -- directly from Claude, Cursor, or any MCP-compatible client.

Si estás construyendo herramientas legales, herramientas de cumplimiento normativo, o haciendo investigación jurídica uruguaya, esta es tu base de datos de referencia verificada.

Built by Ansvar Systems -- Stockholm, Sweden

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Por qué existe esto / Why This Exists

La investigación jurídica uruguaya está dispersa entre IMPO (impo.com.uy), el Diario Oficial, y bases de datos de jurisprudencia. Ya seas:

• Un abogado validando citas en un escrito o contrato
• Un oficial de cumplimiento verificando obligaciones bajo la Ley 18.331 de protección de datos
• Un desarrollador legal tech construyendo herramientas sobre derecho uruguayo
• Un investigador trazando la armonización del MERCOSUR a través de la legislación uruguaya

...no deberías necesitar docenas de pestañas del navegador y referencias cruzadas manuales. Pregunta a Claude. Obtén la disposición exacta. Con contexto.

This MCP server makes Uruguayan 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://uruguayan-law-mcp.vercel.app/mcp

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

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

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

Use Locally (npm)

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

Cursor / VS Code:

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

Example Queries

Una vez conectado, pregunta de forma natural (consultas en español):

• "¿Qué dice la Ley 18.331 sobre protección de datos personales respecto al consentimiento?"
• "¿Está vigente el Código Penal en su versión actual?"
• "Buscar disposiciones sobre 'responsabilidad civil' en el Código Civil"
• "¿Qué dice la Ley de Comercio Electrónico sobre firma digital?"
• "¿Cuál es la equivalencia entre la Ley 18.331 y el RGPD europeo?"
• "Buscar 'sociedad anónima' en la legislación societaria uruguaya"
• "¿Qué leyes uruguayas implementan estándares equivalentes al GDPR?"
• "Validar la cita 'art. 9 de la Ley 18.331'"

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What's Included

Category	Count	Details
Statutes	Ingestion in progress	Laws from IMPO (impo.com.uy) and Diario Oficial
Provisions	Ingestion in progress	Full-text searchable with FTS5
Language	Spanish	Uruguay's official language
Daily Updates	Automated	Freshness checks against IMPO

Coverage note: The Uruguayan law database is actively being built. The MCP server infrastructure is production-ready. Provision counts will be updated as ingestion completes. The remote endpoint is live and returns available data.

Verified data only -- every citation is validated against official sources (IMPO). 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 IMPO (Dirección Nacional de Impresiones y Publicaciones Oficiales)
• 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 law number and article
• Cross-references help navigate without loading everything at once

Technical Architecture:

IMPO / Diario Oficial --> Parse --> SQLite --> FTS5 snippet() --> MCP response
                            ^                        ^
                     Provision parser         Verbatim database query

Traditional Research vs. This MCP

Traditional Approach	This MCP Server
Buscar en IMPO por número de ley	Buscar en español: "protección de datos consentimiento"
Navegar artículos manualmente	Obtener la disposición exacta con contexto
Referencias cruzadas manuales entre leyes	build_legal_stance agrega de múltiples fuentes
"¿Está esta ley vigente?" -- verificar manualmente	check_currency -- respuesta en segundos
Buscar equivalencias UE -- revisar documentos del RGPD	get_eu_basis -- instrumentos EU vinculados
Sin API, sin integración	Protocolo MCP -- nativo para IA

Tradicional: Buscar en IMPO --> Descargar PDF --> Ctrl+F --> Buscar en Diario Oficial --> Repetir

This MCP: "¿Cuáles son los requisitos de notificación de brechas de datos bajo la Ley 18.331?" --> Done.

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Available Tools (13)

Core Legal Research Tools (8)

Tool	Description
search_legislation	FTS5 full-text search across provisions with BM25 ranking
get_provision	Retrieve specific provision by law number and article
validate_citation	Validate citation against database (zero-hallucination check)
build_legal_stance	Aggregate citations from statutes for a legal topic
format_citation	Format citations per Uruguayan conventions (full/short/pinpoint)
check_currency	Check if a law is in force, amended, or repealed
list_sources	List all available statutes with metadata and data provenance
about	Server info, capabilities, dataset statistics, and coverage summary

EU/International Law Integration Tools (5)

Tool	Description
get_eu_basis	Get EU directives/regulations that Uruguayan laws align with (GDPR adequacy)
get_uruguayan_implementations	Find Uruguayan laws aligning with a specific EU act
search_eu_implementations	Search EU documents with Uruguayan alignment counts
get_provision_eu_basis	Get EU law references for a specific Uruguayan provision
validate_eu_compliance	Check alignment status of Uruguayan laws against EU standards

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EU Law Integration

Uruguay holds EU adequacy status under GDPR Article 45 -- one of only a handful of non-EU/EEA countries to have received this determination.

Topic	Status
EU Adequacy Decision	Uruguay holds GDPR Article 45 adequacy for personal data transfers from the EU (Commission Decision C(2012)5704, confirmed under GDPR)
Ley 18.331	Uruguay's data protection law aligns with GDPR principles on consent, data subject rights, and cross-border transfers
MERCOSUR	Uruguay participates in MERCOSUR data protection harmonization discussions

The EU bridge tools let you explore the alignment between Uruguayan law (especially Ley 18.331) and EU regulatory requirements, helping with cross-border data transfer compliance and GDPR-equivalent analysis.

Note: EU adequacy means personal data can flow from the EU to Uruguay without additional safeguards under GDPR Article 46. The EU tools help identify where Uruguayan and EU law address the same domains, and where gaps may exist.

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Data Sources & Freshness

All content is sourced from authoritative Uruguayan legal databases:

• IMPO -- Dirección Nacional de Impresiones y Publicaciones Oficiales (official consolidated legislation)
• Diario Oficial -- Official Gazette

Data Provenance

Field	Value
Authority	IMPO / Poder Legislativo de Uruguay
Retrieval method	IMPO consolidated statute database
Language	Spanish
License	Open access (official government sources)

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors IMPO for changes:

Check	Method
Law amendments	Drift detection against known provision anchors
New laws	Comparison against IMPO index
Repealed laws	Status change detection

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
Docker Security	Container image scanning + SBOM generation	Daily
Socket.dev	Supply chain attack detection	PRs
OSSF Scorecard	OpenSSF best practices scoring	Weekly
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 IMPO (official Uruguayan legal publications). However:

• This is a research tool, not a substitute for professional legal counsel
• Court case coverage is not included -- do not rely solely on this for case law research
• Verify critical citations against primary sources (IMPO / Diario Oficial) for court filings
• EU adequacy means regulatory alignment, not identical legal text -- verify specific requirements against both sources

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.

For guidance from your bar association: Colegio de Abogados del Uruguay

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Documentation

• EU Integration Guide -- EU adequacy and alignment documentation
• Security Policy -- Vulnerability reporting and scanning details
• Disclaimer -- Legal disclaimers and professional use notices
• Privacy -- Client confidentiality and data handling

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Development

Setup

git clone https://github.com/Ansvar-Systems/Uruguayan-law-mcp
cd Uruguayan-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 IMPO
npm run build:db                  # Rebuild SQLite database
npm run drift:detect              # Run drift detection against anchors
npm run check-updates             # Check for amendments and new laws

Performance

• Search Speed: <100ms for most FTS5 queries
• Database Size: Optimized SQLite (efficient, portable)
• Reliability: Production-ready ingestion pipeline

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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. Full regulatory text with article-level search. npx @ansvar/eu-regulations-mcp

@ansvar/uruguayan-law-mcp (This Project)

Query Uruguayan legislation directly from Claude -- Ley 18.331, Código Civil, Código Penal, and more. Full provision text with EU adequacy cross-references. npx @ansvar/uruguayan-law-mcp

@ansvar/argentinian-law-mcp

Query Argentine legislation -- Código Civil y Comercial, Ley de Protección de Datos Personales, and more.

@ansvar/chilean-law-mcp

Query Chilean legislation -- Ley 19.628, Código Civil, Código Penal, and more. npx @ansvar/chilean-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 Africa, the Americas, Europe, Asia, and more.

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Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Full statute corpus ingestion from IMPO
• Supreme Court (Suprema Corte de Justicia) case law
• MERCOSUR cross-reference mapping
• Historical statute versions and Diario Oficial amendment tracking

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Roadmap

• MCP server infrastructure (production-ready)
• EU/international law alignment tools (GDPR adequacy)
• Vercel Streamable HTTP deployment
• npm package publication
• Full statute corpus ingestion from IMPO
• Court case law (Suprema Corte de Justicia)
• Historical statute versions (amendment tracking)
• MERCOSUR harmonization cross-references
• Expanded GDPR adequacy mapping

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Citation

If you use this MCP server in academic research:

@software{uruguayan_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Uruguayan Law MCP Server: AI-Powered Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Uruguayan-law-mcp},
  note = {Uruguayan legislation sourced from IMPO -- EU GDPR adequacy jurisdiction}
}

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License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes: IMPO / Poder Legislativo de Uruguay (public access)
• 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 global market. This MCP server brings Uruguay's official legislation into any AI client -- no browser tabs, no PDFs, no manual cross-referencing.

ansvar.eu -- Stockholm, Sweden

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_{Built with care in Stockholm, Sweden}