Peruvian Law MCP Server

Peruvian Law MCP Server

The SPIJ alternative for the AI age.

Query Peruvian legislation -- from the Ley 29733 de Protección de Datos Personales and Código Penal to the Código Civil, Ley de Delitos Informáticos, and more -- directly from Claude, Cursor, or any MCP-compatible client.

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

Built by Ansvar Systems -- Stockholm, Sweden

---

Por qué existe esto / Why This Exists

La investigación jurídica peruana está dispersa entre SPIJ (Sistema Peruano de Información Jurídica), el portal del Ministerio de Justicia, y el Diario Oficial El Peruano. Ya seas:

• Un abogado validando citas en un escrito o contrato
• Un oficial de cumplimiento verificando obligaciones bajo la Ley 29733 de protección de datos personales
• Un desarrollador legal tech construyendo herramientas sobre derecho peruano
• Un investigador trazando la armonización andina a través de la legislación peruana

...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 Peruvian law searchable, cross-referenceable, and AI-readable.

---

Quick Start

Use Remotely (No Install Needed)

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

Endpoint: https://mcp.ansvar.eu/law-pe/mcp

Claude Desktop -- add to claude_desktop_config.json:

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

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

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

Use Locally (npm)

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

Cursor / VS Code:

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

Example Queries

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

• "¿Qué dice la Ley 29733 sobre protección de datos personales respecto al consentimiento?"
• "¿Está vigente la Ley 30171 de delitos informáticos?"
• "Buscar disposiciones sobre 'responsabilidad civil' en el Código Civil peruano"
• "¿Qué dice el Código Penal sobre delitos contra la intimidad?"
• "¿Qué regula el Decreto Legislativo 1353 sobre acceso a la información pública?"
• "Buscar 'sociedad anónima' en la Ley General de Sociedades (Ley 26887)"
• "¿Cómo se cita correctamente el artículo 10 de la Ley 29733?"
• "Buscar leyes peruanas que regulen el comercio electrónico"

---

What's Included

Coverage note: The Peruvian 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 (SPIJ / El Peruano). Zero LLM-generated content.

---

See It In Action

Why This Works

Verbatim Source Text (No LLM Processing):

• All statute text is ingested from SPIJ (Sistema Peruano de Información Jurídica, Ministerio de Justicia)
• 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:

SPIJ / El Peruano --> Parse --> SQLite --> FTS5 snippet() --> MCP response
                        ^                        ^
                 Provision parser         Verbatim database query

Traditional Research vs. This MCP

Tradicional: Buscar en SPIJ --> Descargar PDF --> Ctrl+F --> Verificar en El Peruano --> Repetir

This MCP: "¿Cuáles son los derechos de los titulares de datos bajo la Ley 29733?" --> Done.

---

Available Tools (13)

Core Legal Research Tools (8)

International Law Integration Tools (5)

---

International Law Alignment

Peru is a member of the Andean Community (CAN) and the OAS, with significant multilateral treaty obligations that shape domestic legislation.

Peru's data protection law (Ley 29733) aligns with APEC Privacy Framework principles and draws on international standards. The international bridge tools help identify where Peruvian law aligns with these frameworks.

Note: Peru is not an EU adequacy jurisdiction under GDPR. The international tools reflect alignment relationships, not binding mutual recognition. For cross-border data transfers from the EU to Peru, appropriate safeguards under GDPR Article 46 apply.

---

Data Sources & Freshness

All content is sourced from authoritative Peruvian legal databases:

• SPIJ -- Sistema Peruano de Información Jurídica (Ministerio de Justicia y Derechos Humanos)
• El Peruano -- Diario Oficial del Perú

Data Provenance

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors SPIJ for changes:

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

---

Security

This project uses multiple layers of automated security scanning:

See SECURITY.md for the full policy and vulnerability reporting.

---

Important Disclaimers

Legal Advice

THIS TOOL IS NOT LEGAL ADVICE

Statute text is sourced from SPIJ (official Peruvian 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 (SPIJ / El Peruano) for court filings
• International cross-references reflect alignment relationships, not binding obligations
• Andean Community Decisions are directly applicable in Peru -- verify CAN instruments separately

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 de Lima / Junta de Decanos de los Colegios de Abogados del Perú

---

Documentation

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

---

Development

Setup

git clone https://github.com/Ansvar-Systems/Peruvian-law-mcp
cd Peruvian-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 SPIJ
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

---

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/peruvian-law-mcp (This Project)

Query Peruvian legislation directly from Claude -- Ley 29733, Código Civil, Código Penal, Ley General de Sociedades, and more. npx @ansvar/peruvian-law-mcp

@ansvar/chilean-law-mcp

Query Chilean legislation -- Ley 19.628, Ley 21.719, Código Civil, and more. npx @ansvar/chilean-law-mcp

@ansvar/colombian-law-mcp

Query Colombian legislation -- Ley 1581, Código Civil, Código Penal, and more. npx @ansvar/colombian-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.

---

Contributing

Contributions welcome! See CONTRIBUTING.md for guidelines.

Priority areas:

• Full statute corpus ingestion from SPIJ
• Supreme Court (Corte Suprema de Justicia) case law
• Andean Community Decision cross-references
• Historical statute versions and El Peruano amendment tracking

---

Roadmap

• MCP server infrastructure (production-ready)
• International law alignment tools
• Vercel Streamable HTTP deployment
• npm package publication
• Full statute corpus ingestion from SPIJ
• Court case law (Corte Suprema de Justicia del Perú)
• Historical statute versions (El Peruano tracking)
• Andean Community Decision cross-references
• OECD accession framework alignment

---

Citation

If you use this MCP server in academic research:

@software{peruvian_law_mcp_2026,
  author = {Ansvar Systems AB},
  title = {Peruvian Law MCP Server: AI-Powered Legal Research Tool},
  year = {2026},
  url = {https://github.com/Ansvar-Systems/Peruvian-law-mcp},
  note = {Peruvian legislation sourced from SPIJ (Sistema Peruano de Informacion Juridica)}
}

---

License

Apache License 2.0. See LICENSE for details.

Data Licenses

• Statutes: Ministerio de Justicia y Derechos Humanos del Perú (open access)
• International Metadata: Public domain treaty databases

---

About Ansvar Systems

We build AI-accelerated compliance and legal research tools for the global market. This MCP server brings Peru's official legislation into any AI client -- no browser tabs, no PDFs, no manual cross-referencing.

ansvar.eu -- Stockholm, Sweden

---