cl-eli-mcp
MCP server for Chilean legislation via the BCN (Biblioteca del Congreso Nacional de Chile) Linked Open Data SPARQL endpoint. Searches and fetches laws, decrees, and resolutions by their persistent resource URI.
What this is not
BCN's resource URIs are not formally called ELI, but they carry the same
idea: jurisdiction, type, issuing body, date, number, all in one
dereferenceable URI. This connector returns metadata (title, number, dates,
issuing body) - not the operative text of the law. Following source_url
(the same URI, content-negotiated) takes you to the human-readable page.
Tools
| Tool | Purpose |
|---|---|
cl_search_norms | Full-text search over norm titles |
cl_get_norm | Full detail for one norm by its BCN resource URI |
Every response carries lex_uri and source_url (both the BCN resource
URI) and human_readable_citation (e.g. "Ley 18290, de 1984-01-23").
Install
pip install cl-eli-mcp
Windows 11 with Smart App Control
Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe
and the cl-eli-mcp.exe launcher that pip writes at install time. The python.exe and
py.exe from the python.org installer are signed by the Python Software
Foundation, so running the module through the interpreter works:
python -m pip install cl-eli-mcp
python -m cl_eli_mcp
pip.exe is blocked for the same reason, so install with python -m pip, not
pip install. If python is not on PATH, use the Windows launcher: py -3 -m cl_eli_mcp.
{ "mcpServers": { "cl-eli-mcp": { "command": "python", "args": ["-m", "cl_eli_mcp"] } } }
Do not turn Smart App Control off to work around this - it cannot be re-enabled without reinstalling Windows.
Configuration
| Env var | Default |
|---|---|
CL_ELI_CACHE_DIR | ~/.matematic/cache/cl-eli |
CL_ELI_AUDIT_DIR | ~/.matematic/audit |
CL_ELI_BASE_URL | https://datos.bcn.cl/sparql |
License
Apache-2.0 (code). BCN Linked Open Data is a public government dataset (see SOURCES.md).