Es Eli

Instalacja (jedna komenda)

Opublikowany na PyPI + MCP Registry (io.github.matematicsolutions/es-eli-mcp). Uruchomienie bez klonowania:

uvx es-eli-mcp

Konfiguracja klienta MCP (stdio):

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

(Budowanie ze źródeł — niżej.)

An MCP server for five Spanish open-data sources:

1. BOE (Boletin Oficial del Estado) open-data API - consolidated legislation. Given a BOE id or a date in the official gazette, returns metadata, structure and full consolidated text, with verifiable ELI identifiers and Spanish citations.
2. Tribunal Constitucional (Sistema HJ / hj.tribunalconstitucional.es) - Spain's Constitutional Court case law (Sentencias / Autos / Declaraciones). Given an internal resolution id, or a citation number+year (e.g. "STC 31/2010"), returns the full ruling with ECLI and a Spanish doctrinal citation.
3. DGT (Direccion General de Tributos, petete.tributos.hacienda.gob.es) - binding tax rulings: ~69,500 consultas vinculantes + ~19,700 consultas generales (live-counted 2026-07-08). Full-text/date search plus the full ruling text by NUM-CONSULTA (e.g. "V0001-25").
4. TEAC (Tribunales Economico-Administrativos, DYCTEA) - ~6,500 doctrine criterios with the full resolution text inline, searched by RG claim-number segments and/or date range.
5. AEPD (Agencia Espanola de Proteccion de Datos) - ~46,800 data-protection resolutions with Solr full-text search and a verified PDF permalink per expediente (e.g. "PS-00615-2025").

Part of the MateMatic eu-legal-mcp production line - after PL, DE and AT. Same citation contract pattern, five Spanish sources.

Free-text search exists on DGT and AEPD only. The BOE open-data keyword-search endpoint (/legislacion-consolidada) currently returns a server-side error; the Tribunal Constitucional site only supports structured search (citation number+year, ECLI, magistrado, materia); DYCTEA accepts text-looking parameters but silently ignores them (verified live). Discover BOE documents via es_browse_gazette (by date) or a known BOE id / ELI; TC rulings via es_search_constitutional; TEAC criterios via RG segments or dates. Every response carries a dataset_note.

Licence. Both sources are official public information published as Spanish PSI (public-sector information) open data; reuse presumes acceptance of the respective 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.
es_get_constitutional_ruling	Tribunal Constitucional ruling by internal resolution id.
es_search_constitutional	Resolve a citation (numero+anno, e.g. 31/2010) to the full TC ruling.
es_search_tax_rulings	Full-text/date search over DGT consultas (vinculantes or generales).
es_get_tax_ruling	Full DGT ruling (facts, question, normativa, answer) by NUM-CONSULTA.
es_search_teac_doctrine	TEAC criterios by RG segments and/or resolution-date range.
es_get_teac_criterio	Full TEAC criterio + resolution text by DYCTEA id.
es_search_aepd_resolutions	Full-text/date search over AEPD resolutions.
es_get_aepd_resolution	AEPD resolution + verified full-text PDF permalink by expediente.

Every BOE 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.

Every Tribunal Constitucional response carries: ecli (e.g. ECLI:ES:TC:2010:31 - TC case law has no ELI, ELI covers legislation only), human_readable_citation (Spanish doctrinal convention, e.g. "STC 31/2010, de 28 de junio"), 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_TC_BASE_URL - default https://hj.tribunalconstitucional.es
• ES_ELI_DGT_BASE_URL - default https://petete.tributos.hacienda.gob.es
• ES_ELI_TEAC_BASE_URL - default https://serviciostelematicosext.hacienda.gob.es/TEAC/DYCTEA
• ES_ELI_AEPD_BASE_URL - default https://www.aepd.es
• ES_ELI_CACHE_DIR - default ~/.matematic/cache/es-eli
• ES_ELI_AUDIT_DIR - default ~/.matematic/audit

No API key. All five sources are keyless.

Governance

• Public data only - read-only against the five official sources; 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 the official *.boe.es / *.tribunalconstitucional.es / *.hacienda.gob.es / *.aepd.es hosts; 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/ --ignore=tests/test_smoke.py -v   # offline (fixtures)
pytest tests/test_smoke.py -v                   # hits live BOE + TC + DGT + TEAC + AEPD

Licence

Apache-2.0. © Matematic Solutions / Wieslaw Mazur.