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

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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.

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Quick Start

Use Remotely (No Install Needed)

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

Endpoint: https://peruvian-law-mcp.vercel.app/mcp

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

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

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

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What's Included

Category	Count	Details
Statutes	Ingestion in progress	Laws from SPIJ (spij.minjus.gob.pe) and El Peruano
Provisions	Ingestion in progress	Full-text searchable with FTS5
Language	Spanish	Peru's official language
Daily Updates	Automated	Freshness checks against SPIJ

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.

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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

Traditional Approach	This MCP Server
Buscar en SPIJ 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 marcos internacionales -- revisar textos de la CAN	get_eu_basis -- instrumentos internacionales vinculados
Sin API, sin integración	Protocolo MCP -- nativo para IA

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.

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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 Peruvian 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

International Law Integration Tools (5)

Tool	Description
get_eu_basis	Get international instruments that Peruvian laws align with
get_peruvian_implementations	Find Peruvian laws implementing a specific international standard
search_eu_implementations	Search international documents with Peruvian alignment counts
get_provision_eu_basis	Get international law references for a specific Peruvian provision
validate_eu_compliance	Check alignment status of Peruvian laws against international standards

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International Law Alignment

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

Framework	Relevance
Andean Community (CAN)	Peru participates in Andean legal harmonization -- Decisions of the Andean Commission are directly applicable
OAS Conventions	Peru has ratified inter-American conventions on corruption, human rights, and mutual legal assistance
OECD Accession	Peru is in OECD accession discussions -- governance, anti-corruption, and data protection modernization
USMCA/Trade Agreements	Peru has trade agreements with the US, EU, and others containing IP, digital trade, and data governance provisions

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.

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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

Field	Value
Authority	Ministerio de Justicia y Derechos Humanos del Perú
Retrieval method	SPIJ consolidated statute database
Language	Spanish
License	Open access (official government sources)

Automated Freshness Checks (Daily)

A daily GitHub Actions workflow monitors SPIJ for changes:

Check	Method
Law amendments	Drift detection against known provision anchors
New laws	Comparison against SPIJ 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 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

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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

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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

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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/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.

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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

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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

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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)}
}

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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

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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

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_{Built with care in Stockholm, Sweden}