@ansvar/mexican-law-mcp
Advanced tools
Mexican federal law database covering data protection (LFPDPPP), fintech, cybercrime, commercial law, and consumer protection with Spanish full-text search
The Camara de Diputados alternative for the AI age.
Query 185 Mexican federal statutes -- from the Constitucion and LFPDPPP to the Ley Fintech, Codigo Penal Federal, and more -- directly from Claude, Cursor, or any MCP-compatible client.
If you're building legal tech, compliance tools, or doing Mexican legal research, this is your verified reference database.
Built by Ansvar Systems -- Stockholm, Sweden
Mexican legal research is scattered across diputados.gob.mx, the Diario Oficial de la Federacion, ordenjuridico.gob.mx, and dozens of state-level sites. Whether you're:
...you shouldn't need 47 browser tabs and manual PDF cross-referencing. Ask Claude. Get the exact provision. With context.
This MCP server makes Mexican law searchable, cross-referenceable, and AI-readable.
Connect directly to the hosted version -- zero dependencies, nothing to install.
Endpoint: https://mexican-law-mcp.vercel.app/mcp
| Client | How to Connect |
|---|---|
| Claude.ai | Settings > Connectors > Add Integration > paste URL |
| Claude Code | claude mcp add mexican-law --transport http https://mexican-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": {
"mexican-law": {
"type": "url",
"url": "https://mexican-law-mcp.vercel.app/mcp"
}
}
}
GitHub Copilot -- add to VS Code settings.json:
{
"github.copilot.chat.mcp.servers": {
"mexican-law": {
"type": "http",
"url": "https://mexican-law-mcp.vercel.app/mcp"
}
}
}
npx @ansvar/mexican-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": {
"mexican-law": {
"command": "npx",
"args": ["-y", "@ansvar/mexican-law-mcp"]
}
}
}
Cursor / VS Code:
{
"mcp.servers": {
"mexican-law": {
"command": "npx",
"args": ["-y", "@ansvar/mexican-law-mcp"]
}
}
}
Once connected, just ask naturally:
| Category | Count | Details |
|---|---|---|
| Constitution | 1 | Constitucion Politica de los Estados Unidos Mexicanos |
| Federal Codes | 9 | Civil, Commercial, Criminal, Tax, Procedure, Military Justice |
| Federal Laws | 116 | Data protection, fintech, telecom, labor, competition, etc. |
| General Laws | 43 | Health, education, environment, transparency, anti-corruption |
| Organic Laws | 9 | Judiciary, Congress, Public Administration, Attorney General |
| Regulatory Laws | 6 | Agrarian, mining, nuclear energy, professional practice |
| Other | 1 | Statutes |
| Total Statutes | 185 | Comprehensive Mexican federal legislation |
| Provisions | 583 | Full-text searchable with FTS5 (unicode61 for Spanish) |
| Definitions | 56 | Legal term definitions extracted from statutes |
| Database Size | ~0.7 MB | Optimized SQLite, portable |
Verified data only -- every citation is validated against official sources (diputados.gob.mx). Zero LLM-generated content.
| Tool | Description |
|---|---|
search_legislation | FTS5 search on 583 provisions with BM25 ranking |
get_provision | Retrieve specific provision by law + article number |
list_laws | List all 185 statutes with metadata |
get_preparatory_works | Get linked reform history for a statute |
validate_citation | Validate citation against database (zero-hallucination check) |
build_legal_stance | Aggregate citations from multiple statutes |
format_citation | Format citations per Mexican conventions (DOF reference) |
check_currency | Check if statute is in force, amended, or repealed |
All content is sourced from authoritative Mexican legal databases:
A daily GitHub Actions workflow monitors data sources for reforms published in the Diario Oficial de la Federacion.
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.
THIS TOOL IS NOT LEGAL ADVICE
Statute text is sourced from official Camara de Diputados publications. However:
- This is a research tool, not a substitute for professional legal counsel
- Verify critical citations against primary sources (DOF, diputados.gob.mx) for court filings
- Mexican law is complex -- federal vs. state jurisdiction matters
- Reforms may have transitional provisions not fully captured
Before using professionally, read: DISCLAIMER.md | PRIVACY.md
Queries go through the Claude API. For privileged or confidential matters, use on-premise deployment. See PRIVACY.md for guidance.
git clone https://github.com/Ansvar-Systems/mexican-law-mcp
cd mexican-law-mcp
npm install
npm run build
npm test
npm run dev # Start MCP server
npx @anthropic/mcp-inspector node dist/index.js # Test with MCP Inspector
npm run census # Enumerate all federal laws
npm run ingest # Full corpus ingestion from census
npm run ingest -- --resume # Resume interrupted ingestion
npm run ingest -- --limit 5 # Test with 5 laws
npm run ingest -- --skip-fetch # Reuse cached HTML
npm run build:db # Rebuild SQLite database
npm run check-updates # Check for amendments
census.ts -> data/census.json (185 laws)
|
ingest.ts -> data/seed/*.json (per-law provision JSON)
|
build-db.ts -> data/database.db (SQLite + FTS5)
This server is part of Ansvar's Compliance Suite -- MCP servers that work together for end-to-end compliance coverage:
Query 49 EU regulations directly from Claude -- GDPR, AI Act, DORA, NIS2, MiFID II, eIDAS, and more. npx @ansvar/eu-regulations-mcp
Query US federal and state compliance laws -- HIPAA, CCPA, SOX, GLBA, FERPA, and more. npx @ansvar/us-regulations-mcp
Query 2,415 Swedish statutes directly from Claude -- with EU cross-references. npx @ansvar/swedish-law-mcp
Query Canadian federal legislation -- consolidated Acts from Justice Laws Website. npx @ansvar/canadian-law-mcp
Contributions welcome! See CONTRIBUTING.md for guidelines.
Priority areas:
If you use this MCP server in academic research:
@software{mexican_law_mcp_2026,
author = {Ansvar Systems AB},
title = {Mexican Law MCP Server: Federal Legislation Research Tool},
year = {2026},
url = {https://github.com/Ansvar-Systems/mexican-law-mcp},
note = {185 Mexican federal statutes with Spanish full-text search}
}
Apache License 2.0. See LICENSE for details.
We build AI-accelerated compliance and legal research tools. This MCP server makes Mexican federal law searchable, cross-referenceable, and AI-readable.
ansvar.eu -- Stockholm, Sweden
Built with care in Stockholm, Sweden
FAQs
Mexican federal law database covering data protection (LFPDPPP), fintech, cybercrime, commercial law, and consumer protection with Spanish full-text search
The npm package @ansvar/mexican-law-mcp receives a total of 72 weekly downloads. As such, @ansvar/mexican-law-mcp popularity was classified as not popular.
We found that @ansvar/mexican-law-mcp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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