How do I install Es Eli?

Es Eli is a local plugin. Install it using PyPI package: es-eli-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Es Eli safe to use?

Es Eli scored 5.2/10 (moderate risk) in MCP Marketplace's automated security scan. It has 4 high or critical findings to review. It's listed, but review the security report on this page before installing.

What AI apps work with Es Eli?

Es Eli uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Es Eli MCP Server

by Matematicsolutions

Developer ToolsModerate5.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

MCP server for Spanish BOE consolidated legislation, grounded by id/ELI with verifiable citations.

About

MCP server for Spanish BOE consolidated legislation, grounded by id/ELI with verifiable citations.

Security Report

5.2

Moderate5.2Moderate Risk

Well-engineered MCP server for Spanish BOE legislation with strong security practices. Read-only access to public data, proper audit logging, input validation, and error handling are well-implemented. Minor code quality findings do not materially affect security posture. Permissions are appropriate for the stated purpose of accessing public BOE APIs and caching. Supply chain analysis found 6 known vulnerabilities in dependencies (1 critical, 3 high severity). Package verification found 1 issue.

7 files analyzed · 11 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

File System Write

Writes or modifies files on your machine. Check that this is expected for the tool.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-matematicsolutions-es-eli-mcp": {
      "args": [
        "es-eli-mcp"
      ],
      "command": "uvx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

es-eli-mcp

An MCP server for the Spanish BOE (Boletin Oficial del Estado) open-data API. It grounds Spanish consolidated legislation: given a BOE id or a date in the official gazette, it returns metadata, structure and full consolidated text, with verifiable ELI identifiers and Spanish citations.

Part of the MateMatic eu-legal-mcp production line - after PL, DE and AT. Same citation contract, BOE source.

No free-text search. The BOE open-data keyword-search endpoint (/legislacion-consolidada) currently returns a server-side error, so this connector is grounding + gazette-browse, not keyword search. Discover documents via es_browse_gazette (by date) or use a known BOE id / ELI. Every response carries a dataset_note.

Licence. Spanish BOE content is official public information published as open data; reuse presumes acceptance of the BOE reuse conditions. This connector relays that public content with attribution and a source_url.

The tools

Tool	What it does
`es_browse_gazette`	List documents published in the BOE on a date (`YYYYMMDD`) - discovery.
`es_get_act`	Metadata for a BOE id (eli_uri, official `titulo`, source).
`es_get_index`	The block index (articles, titles) of a consolidated law.
`es_get_text`	Consolidated text (XML), whole or by block.

Every response carries the contract: eli_uri (a full ELI URL, e.g. https://www.boe.es/eli/es/lo/2018/12/05/3), human_readable_citation (the official titulo), and source_url.

Install

cd es-eli-mcp
pip install -e .

Configure (Claude Code / any MCP client)

{
  "mcpServers": {
    "es-eli-mcp": { "command": "es-eli-mcp" }
  }
}

Environment:

ES_ELI_BASE_URL - default https://www.boe.es/datosabiertos/api
ES_ELI_CACHE_DIR - default ~/.matematic/cache/es-eli
ES_ELI_AUDIT_DIR - default ~/.matematic/audit

No API key. BOE open data is keyless.

Governance

Public data only - read-only against BOE; no client data leaves the machine.
Audit log - every tool call appends one JSON line to ~/.matematic/audit/es-eli-mcp.jsonl.
Vendor-neutral - talks only to boe.es; no LLM provider, no telemetry.
Verifiable citations - every response is independently checkable via source_url.

See CONSTITUTION.md and DISCOVERY.md.

Tests

pip install -e ".[dev]"
pytest tests/test_instructions_drift.py -v   # offline
pytest tests/test_smoke.py -v                # hits live BOE

Licence

Apache-2.0. © Matematic Solutions / Wieslaw Mazur.

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Es Eli MCP Server

About

Security Report

Findings (11)Action required

Permissions Required

How to Install

Documentation

es-eli-mcp

The tools

Install

Configure (Claude Code / any MCP client)

Governance

Tests

Licence

Reviews

No reviews yet

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