@notset/boe-legal-mcp

MCP server to access Spain's entire consolidated legal database (BOE) from Claude, Cursor, or any MCP-compatible AI agent.

Zero config. No API keys. Always up to date.

Quick Start

Add to your MCP host configuration:

{
  "mcpServers": {
    "boe-legal": {
      "command": "npx",
      "args": ["-y", "@notset/boe-legal-mcp"]
    }
  }
}

Then ask your AI assistant:

• "¿Qué dice el artículo 14 de la Constitución Española?"
• "Busca leyes sobre protección de datos"
• "¿Qué obligaciones fiscales tiene un autónomo?"

Tools

| Tool | Description | |---|---| | search_legislation | Search laws by title, full text, subject, rank, date, or status | | get_law | Get full metadata and legal analysis for a specific law | | get_article | Get the exact text of a specific article from any law | | get_law_index | Browse a law's structure (titles, chapters, articles) | | get_law_analysis | Get legal references: repeals, amendments, subjects | | get_auxiliary_tables | Get BOE reference codes (subjects, law types, departments) |

Common Law IDs

| Law | BOE ID | |---|---| | Constitución Española | BOE-A-1978-31229 | | Código Civil | BOE-A-1889-4763 | | Código Penal | BOE-A-1995-25444 | | Estatuto de los Trabajadores | BOE-A-2015-11430 | | LOPDGDD (Protección de datos) | BOE-A-2018-16673 | | Ley General Tributaria | BOE-A-2003-23186 | | Ley IRPF | BOE-A-2006-20764 | | Ley IVA | BOE-A-1992-28740 | | Ley Autónomos (LETA) | BOE-A-2007-13409 | | Ley Arrendamientos Urbanos | BOE-A-1994-26003 |

Examples

Search legislation

User: "Search for laws about protección de datos"
→ Tool: search_legislation({ query: "protección datos" })
→ Returns: LOPDGDD (BOE-A-2018-16673) and related regulations

Get article text

User: "What does Article 14 of the Constitution say?"
→ Tool: get_article({ boe_id: "BOE-A-1978-31229", article_id: "a14" })
→ Returns: "Los españoles son iguales ante la ley..."

Browse a law

User: "Show me the structure of the Workers' Statute"
→ Tool: get_law_index({ boe_id: "BOE-A-2015-11430" })
→ Returns: Full table of contents with article IDs

Data Source

All data comes directly from the official BOE Open Data API maintained by the Agencia Estatal Boletín Oficial del Estado (AEBOE).

• ✅ Always up to date (live API)
• ✅ Covers state and autonomous community legislation
• ✅ Consolidated texts with full amendment history

Requirements

• Node.js ≥ 18
• Internet connection (queries the BOE API in real time)

Legal Notice

⚖️ Consolidated legal texts are informational and have no official legal validity. For decisions with legal implications, always consult a qualified legal professional and the official publication in the BOE.

License

MIT — NotSet