A Brazilian legal research API accessed through one MCP connection. It covers court cases, official notices, legal decisions, calculations, public tenders, government audit decisions, certificates, trademarks and compliance records.

Use it to search cases by name, tax number or case number; track proceedings and notices; find legal precedents; calculate judicial amounts; research tenders; check certificates and sanctions; and search trademark or patent records.

It avoids having to connect separately to many Brazilian legal and government sources when researching a matter or checking a person, company or case.

jus-mcp — Skill for Claude Code and Codex by mcp-dir

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add mcp-dir/jus-mcp --skill jus-mcp

Clone the repo

git clone --depth 1 https://github.com/mcp-dir/jus-mcp

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/mcp-dir/jus-mcp/jus-mcp/github.svg)](https://agentmods.dev/skills/mcp-dir/jus-mcp/jus-mcp)

Your own site

<a href="https://agentmods.dev/skills/mcp-dir/jus-mcp/jus-mcp"><img src="https://agentmods.dev/badge/skills/mcp-dir/jus-mcp/jus-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/mcp-dir/jus-mcp/jus-mcp"><img src="https://agentmods.dev/badge/skills/mcp-dir/jus-mcp/jus-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 166 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 48,530 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 5 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Data Exfiltration · line 3
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
medium Data Exfiltration · line 15
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
medium Data Exfiltration · line 40
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
medium Data Exfiltration · line 3056
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
medium Data Exfiltration · line 37
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00166	$0.48530
Opus 5.5	$0.00066	$0.19412
Sonnet 5.5	$0.00033	$0.09706
Haiku 4.5	$0.00017	$0.04853

Measured 2mo ago against content hash 5824958e0744, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

jus-mcp scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X POST https://api.mcp.ai/api/jus/calculo/aluguel \

skills/jus-mcp/SKILL.md · 3,057 lines

How it starts

The opening of the file, as written. The whole thing — 3,057 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jus MCP — REST API skill

Você tem acesso à Jus MCP REST API na MCP.AI.

Todo o jurídico brasileiro numa conexão só: processos por nome/CPF/CNPJ/número, publicações e intimações do DJEN, jurisprudência, cálculos judiciais, licitações do PNCP e acórdãos do TCU, certidões de regularidade, sanções e compliance, e mais de 150 consultas em fontes e órgãos oficiais. Hospedado pela plataforma, sem login, com as fontes públicas grátis e crédito pré-pago só nas consultas pagas.

Base URL

https://api.mcp.ai/api/jus

Todo endpoint é um POST na Base URL + o path abaixo. Os parâmetros vão no corpo JSON.

Autenticação

Inclua em toda request:

Authorization: Bearer sk_live_...
Content-Type: application/json

Gere sua chave em https://app.mcp.ai/settings/api-keys (workspace API key sk_live_…, não expira, revogável). Uma única chave serve pra todos os seus MCPs.

Formato de resposta

{ "ok": true, "tool": "<tool_id>", "result": <payload> }

Exemplo cURL

curl -X POST https://api.mcp.ai/api/jus/calculo/aluguel \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"aluguel_inicial":0,"inicio_contrato":"...","inicio_atraso":"...","fim_atraso":"..."}'

Reportar problemas

Se um endpoint retornar erro, vazio ou dado inesperado, reporte (não desista calado): POST /api/jus/report com { "message": "...", "context"?: "...", "conversation"?: [...] }. Isso notifica o time da MCP.AI.

Endpoints (270)

`calculo_aluguel`

Aluguéis em atraso (Lei 8.245/91): reajusta o aluguel ao longo do contrato pelo índice, corrige cada mês atrasado até hoje, aplica juros de mora (1% a.m.) e multa moratória. (POST /api/jus/calculo/aluguel)

Parâmetro	Tipo	Obrigatório	Descrição
`aluguel_inicial`	number	Sim	Valor inicial do aluguel (R$).
`inicio_contrato`	string	Sim	Início do contrato (dd/mm/yyyy) — base dos reajustes.
`inicio_atraso`	string	Sim	Início do atraso (dd/mm/yyyy).
`fim_atraso`	string	Sim	Fim do atraso (dd/mm/yyyy).
`data_calculo`	string	Não	Default = fim do atraso.
`indice`	string	Não	Índice de reajuste/correção (default IGP-M). (NENHUM, IPCA, IPCA-E, IPCA-15, INPC, IGP-M, IGP-DI, INCC, IPC-FIPE, SELIC, CDI, TR, POUPANCA, POUPANCA-ANTIGA)
`periodicidade_meses`	integer	Não	Periodicidade do reajuste (12=anual, default).
`juros`	number	Não	% a.m. de mora (default 1).
`multa`	number	Não	% multa moratória sobre o aluguel (default 10).

Read the full file on GitHub · 3,057 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 3,057 lines · 0 tokens per session scan A 5824958e0744

Subscribe to this mod's changes

jus-mcp is a skill published in the GitHub repository mcp-dir/jus-mcp (16 stars, last pushed 2mo ago), licensed MIT. It adds 166 tokens to every session and 48,530 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Legal and compliance Research

jus-mcp next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
jus-mcpmcp-dir/jus-mcp	Skill	16	2mo ago	MIT	A	166	Claude Code, Codex
fto-triageanthropics/claude-for-legal	Skill	9.9k	3d ago	Apache-2.0	A	81	Claude Code
legal-holdanthropics/claude-for-legal	Skill	9.9k	3d ago	Apache-2.0	A	68	Claude Code
specification-writingwanshuiyin/Auto-claude-code-research-in-sleep	Skill	19k	3d ago	MIT	A	49	Claude Code
terms-of-servicegenspark-ai/genoffice	Skill	12k	yesterday	Apache-2.0	A	32	Claude Code, Codex
x-scorecardx-cmd/x-cmd	Skill	4.7k	7d ago	Apache-2.0	A	57	Claude Code, Codex
gesellschaftsrechtliche-satzungen-agbKlotzkette/claude-fuer-deutsches-recht	Skill	1.8k	yesterday	Apache-2.0	A	69	Claude Code

jus-mcp