br-eli-mcp

MCP server for eight keyless, no-registration Brazilian open-data APIs:

1. Camara dos Deputados (dadosabertos.camara.leg.br) - the federal legislative process: bills (proposicoes) as they move through committees and floor votes.
2. Congresso Nacional Dados Abertos Legislativos (legis.senado.leg.br/dadosabertos) - the real LexML URN Lex resolver for enacted Normas Juridicas (laws, decrees, constitutional amendments): identification, Diario Oficial da Uniao publication provenance, amendment history, STF unconstitutionality notes.
3. normas.leg.br - the full-text companion to (2): real article-by-article text of enacted legislation, addressed by the same URN Lex.
4. DataJud CNJ (api-publica.datajud.cnj.jus.br) - court DOCKET metadata (not ruling text) across STJ/TST/TSE/TRFs/TJs/TRTs/TREs and military courts.
5. STJ Open Data Portal (dadosabertos.web.stj.jus.br) - real acordao (ruling) full text + ementa (headnote) from the Superior Tribunal de Justica, Brazil's second-highest court. Coverage starts May 2022.
6. CARF (acordaos.economia.gov.br) - real acordao (tax ruling) full text from Brazil's federal tax appeals board, by exact docket/decision number.
7. TST (jurisprudencia-backend2.tst.jus.br) - real ruling full text (inteiro teor) + ementa from the Tribunal Superior do Trabalho, Brazil's labor supreme court: free-text search and exact CNJ-process-number lookup (3,751,594 acordaos, 8,483,448 documents across all types - verified live 2026-07-07).
8. TCU (pesquisa.apps.tcu.gov.br) - real acordao full text (deliberation, rapporteur's report, vote) from the Tribunal de Contas da Uniao, the Federal Court of Accounts - public-procurement jurisprudence (525,620 acordaos - verified live 2026-07-07).

What this is (and isn't)

br_get_norma resolves a urn:lex:br:... against the Senado's own API gateway (public, no key or registration) and returns identification, publication provenance, and amendment history. br_get_norma_index + br_get_norma_texto resolve the same URN against normas.leg.br's structured Legislation tree for the real text of one article - not a summary. See DISCOVERY.md for how both endpoints were found: v0.1.0 tested the wrong host for identification and wrongly reported it as unconfirmed; v0.2.0 fixed that but still lacked full text; v0.3.0 found the full-text API on the same domain as the human-readable citation page.

This connector does not scrape Planalto (planalto.gov.br) HTML - no confirmed mechanical rule maps a URN Lex to a Planalto URL for every act type, and fabricating one would risk the citation-hallucination failure mode this fleet exists to prevent. Re-verified live 2026-07-07: legislacao.presidencia.gov.br (the REFLEGIS portal the manifest names) does not return a plain HTTP response to a keyless client at all - the connection is accepted but the request times out with zero bytes received, consistent with a bot-challenge/WAF in front of it, not a structured API. A minority of act types (mostly decrees) have no inline text in normas.leg.br either; for those, see DISCOVERY.md.

For case law, DataJud (docket metadata only, redistribution restricted by CNJ Resolution 446/2022), the STJ Open Data Portal (real acordao text, May 2022+), CARF (real tax-ruling text, exact lookup only), TST (real ruling text - free-text search and exact CNJ-process-number lookup, both confirmed live 2026-07-07 after a browser network trace of the real frontend revealed the request fields the earlier reverse-engineering missed) and TCU (real acordao/relatorio/voto text) are wired in below. TRF4/TRF5 were probed and rejected - their hosts never accept a connection from outside Brazil (geo_restricted) - and RFB's sijut2consulta is a scrape-class HTML app with no JSON backend. See DISCOVERY.md for the exact probes run and each confirmed request/response contract.

Tools

Tool	Purpose
br_search_proposicoes	List bills by type (PL, PLP, PEC, ...) and year
br_get_proposicao	Full detail + current status for one bill by id
br_get_norma	Resolve an enacted Norma Juridica by URN Lex - identification, DOU provenance, amendment history, STF notes
br_get_norma_index	List the addressable structure of a Norma (parts, books, titles, chapters, sections, articles)
br_get_norma_texto	Fetch the real text of one article (dispositivo) of a Norma
br_search_processos	Search court dockets (metadata only) in one tribunal's DataJud CNJ index
br_get_processo	Fetch one court docket by exact CNJ unified process number
br_search_case_stj	Search STJ acordaos (real ruling text) by process number or free text
br_get_case_stj	Fetch one STJ acordao by exact process number - ementa + ruling body text
br_get_case_carf	Fetch one CARF tax acordao by exact docket or decision number - ementa + ruling body text
br_search_case_tst	Search TST labor-court rulings by free text (real ruling text; 3.75M acordaos)
br_get_case_tst	Fetch one TST ruling by exact CNJ unified process number - ementa + inteiro teor
br_search_case_tcu	Search TCU (Federal Court of Accounts) acordaos by free text (525K acordaos)
br_get_case_tcu	Fetch one TCU acordao by (numero, ano, colegiado) - deliberation + report + vote text

Bill type codes (sigla_tipo), for reference:

Code	Portuguese	English
PL	Projeto de Lei	ordinary bill
PLP	Projeto de Lei Complementar	complementary-law bill (implements a constitutional provision)
PEC	Proposta de Emenda a Constituicao	constitutional amendment proposal

Every response carries lex_uri, human_readable_citation and source_url. For br_search_proposicoes/br_get_proposicao, lex_uri is Camara's own stable API URI (not a URN Lex - a bill isn't enacted law yet). For br_get_norma, lex_uri is the real urn:lex:br:... you queried with, e.g. "urn:lex:br:federal:lei:2002-01-10;10406" (Codigo Civil). For br_get_norma_texto, lex_uri is that URN plus the article suffix, e.g. "...;10406!art5".

Install

pip install br-eli-mcp

Windows 11 with Smart App Control

Smart App Control blocks unsigned executables, which covers uvx.exe, pip.exe and the br-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 br-eli-mcp
python -m br_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 br_eli_mcp.

{ "mcpServers": { "br-eli-mcp": { "command": "python", "args": ["-m", "br_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
BR_ELI_CACHE_DIR	~/.matematic/cache/br-eli
BR_ELI_AUDIT_DIR	~/.matematic/audit
BR_ELI_BASE_URL	https://dadosabertos.camara.leg.br/api/v2
BR_ELI_NORMA_BASE_URL	https://legis.senado.leg.br/dadosabertos
BR_ELI_TEXT_BASE_URL	https://normas.leg.br/api/public
BR_ELI_DATAJUD_BASE_URL	https://api-publica.datajud.cnj.jus.br
BR_ELI_STJ_BASE_URL	https://dadosabertos.web.stj.jus.br
BR_ELI_CARF_BASE_URL	https://acordaos.economia.gov.br/solr/acordaos2/select
BR_ELI_TST_BASE_URL	https://jurisprudencia-backend2.tst.jus.br
BR_ELI_TCU_BASE_URL	https://pesquisa.apps.tcu.gov.br/rest/publico/base/acordao-completo

License

Apache-2.0 (code). The Camara dos Deputados open-data API is open data requiring attribution - see SOURCES.md.