saij-mcp
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@saij-mcp Buscá jurisprudencia sobre phishing bancario en Argentina"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
saij-mcp
Servidor MCP para buscar en SAIJ (Sistema Argentino de Información Jurídica), la base de datos jurídica oficial de Argentina.
Permite que cualquier cliente de IA (Claude Desktop, Cursor, Windsurf, VS Code, Claude Code, etc.) busque y recupere fallos, legislación, sumarios y doctrina argentina.
Instalación rápida
Hacé click en el botón de tu editor:
Claude Desktop (extensión .mcpb)
Descargá saij-0.1.0.mcpb y abrilo — Claude Desktop lo instala automáticamente.
Claude Code
claude mcp add saij -- uvx saij-mcpClaude Desktop
Agregar a claude_desktop_config.json:
{
"mcpServers": {
"saij": {
"command": "uvx",
"args": ["saij-mcp"]
}
}
}Windsurf
Agregar a ~/.codeium/windsurf/mcp_config.json:
{
"mcpServers": {
"saij": {
"command": "uvx",
"args": ["saij-mcp"]
}
}
}Claude Cowork
Desde el chat:
/plugin marketplace add hernan-cc/claude-plugins
/plugin install saij@hernan-ccChatGPT
ChatGPT solo soporta MCP servers remotos (HTTP), no locales. saij-mcp hoy corre en modo stdio (local). Para usarlo con ChatGPT necesitás exponerlo como servidor HTTP con un túnel (ej. ngrok) o desplegarlo en un servidor propio. Estamos trabajando en una versión remota.
pip / uvx
pip install saij-mcp # instalar globalmente
uvx saij-mcp # ejecutar sin instalarRequiere uv para
uvx, o Python 3.10+ parapip.
Related MCP server: bora-mcp
Herramientas
Herramienta | Descripción |
| Buscar por palabras clave en fallos, sumarios, legislación, doctrina |
| Obtener metadatos completos de un documento por ID SAIJ (ej. |
| Obtener todos los sumarios vinculados a un fallo |
Ejemplos de uso
Una vez configurado, tu cliente de IA puede:
"Buscame jurisprudencia sobre phishing bancario" — busca sumarios con descriptores del tesauro jurídico
"Qué dice el fallo FA20000057?" — recupera metadatos completos: tribunal, fecha, magistrados
"Dame los sumarios del fallo FA20000057" — devuelve todos los principios jurídicos extraídos del fallo
"Buscá leyes sobre defensa del consumidor" — busca legislación por título
Campos de búsqueda
Campo | Funciona con | Descripción |
| Todo | Busca por título del documento (default) |
| Solo sumarios | Búsqueda en el cuerpo del sumario |
Tipos de documento
Tipo | Descripción |
| Sentencias y resoluciones judiciales (default) |
| Resúmenes con descriptores del tesauro |
| Fallos y sumarios |
| Toda la legislación |
| Leyes |
| Decretos |
| Doctrina y artículos jurídicos |
| Dictámenes |
| Todos los tipos |
Cómo funciona
SAIJ expone una API JSON pública (sin autenticación). Este servidor la envuelve con descripciones de herramientas MCP para que los clientes de IA puedan buscar de forma efectiva.
La API usa sintaxis de consulta tipo Lucene internamente. El servidor se encarga de construir las queries, filtrar por facetas y parsear las respuestas.
Los sumarios son particularmente útiles: contienen principios jurídicos extraídos de los fallos, etiquetados con un tesauro jerárquico de descriptores. Estos descriptores permiten búsqueda semántica legal incluso sin embeddings.
Limitaciones
El texto completo de los fallos es solo PDF — la API devuelve metadatos y sumarios vinculados, pero el texto de la sentencia está en un PDF adjunto. Usá
pdf_urldesaij_get_documentpara descargarlo.El campo
textosolo busca en sumarios — para fallos, buscá portitulo(carátula).No se detectó rate limiting, pero usá con moderación.
Licencia
MIT
Available Tools
3 toolssaij_get_documentA
Get a full document from SAIJ by its ID.
Retrieves complete metadata for a court decision, law, or other legal
document, including tribunal, date, jurisdiction, magistrates, and
related sumarios. For fallos, includes PDF download URL.
Args:
identifier: Either a SAIJ id-infojus (e.g. "FA20000057" for a fallo,
"LNS0007682" for a law) or the full document UUID.
Returns:
JSON with complete document metadata. For fallos: tribunal, date,
case caption (caratula), magistrates, jurisdiction, related sumario
IDs, and PDF URL. For sumarios: summary text, thesaurus descriptors.
Inputs: identifier (required). Returns: result
saij_get_sumariosA
Get all legal summaries (sumarios) linked to a court decision.
Each sumario contains a legal principle extracted from the decision,
tagged with thesaurus descriptors. Useful for understanding the key
legal holdings of a case.
Args:
fallo_id: The fallo's id-infojus (e.g. "FA20000057"). The "FA"
prefix is added automatically if missing.
Returns:
JSON with the fallo ID, total count, and array of sumarios, each
with: summary text, thesaurus descriptors (legal topic tags),
tribunal, date, and jurisdiction.
Inputs: fallo_id (required). Returns: result
saij_searchA
Search Argentine legal documents in SAIJ.
Use this tool to find court decisions (fallos), legal summaries (sumarios),
legislation (leyes, decretos), doctrine, and dictámenes from Argentina's
official legal database.
Args:
query: Search terms (e.g. "consumidor", "phishing bancario").
doc_type: Type of document to search. Options:
- "fallo": Court decisions (default)
- "sumario": Case summaries with thesaurus tags
- "jurisprudencia": Both fallos and sumarios
- "legislacion": All legislation
- "ley": Laws only
- "decreto": Decrees only
- "doctrina": Legal doctrine/articles
- "dictamen": Official opinions
- "todo": All document types
field: Search field. "titulo" works with all types. "texto" only
works with sumarios (searches the summary text body).
limit: Maximum results to return (1-25, default 10).
offset: Pagination offset for fetching more results.
Returns:
JSON with total count, results array, and facet breakdowns
(by jurisdiction, tribunal, year).
Inputs: query (required), doc_type, field, limit, +1 more. Returns: result
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
Scored across 3 tools
Each tool has a clearly distinct purpose: saij_get_document retrieves a specific document by ID, saij_get_sumarios fetches summaries linked to a court decision, and saij_search performs broad queries across the legal database. There is no overlap in functionality, making tool selection straightforward for an agent.
All tool names follow a consistent snake_case pattern with the prefix 'saij_' and a clear verb_noun structure (get_document, get_sumarios, search). This uniformity aids predictability and readability across the tool set.
With 3 tools, the server is slightly lean but reasonable for its purpose of accessing Argentine legal documents. It covers key operations (retrieve, fetch related summaries, search), though a few more tools might enhance coverage without being necessary.
The tools provide good coverage for querying and retrieving legal documents, including metadata and summaries. Minor gaps exist, such as lacking explicit update or delete operations, but these are likely unnecessary for a read-only legal database, and agents can work effectively with the provided tools.
Maintenance
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Search U.S. case law, fetch opinions, and ask matter-aware legal questions over your documents.
Busca jurisprudencia española desde Claude, ChatGPT y otros clientes MCP. Localiza resoluciones, consulta sus fundamentos y el fallo cuando estén disponibles y comprueba los pasajes con enlaces a las fuentes oficiales para preparar tu investigación jurídica. Conecta tu cuenta mediante OAuth o utiliza una clave API. Los resúmenes se distinguen del texto íntegro; la cobertura es progresiva y no exhaustiva.
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