Jus MCP — Claude Code MCP server: what it does, how to install
Connects Brazilian legal registries, PNCP public procurement data, debt calculators, and compliance lookups directly to your coding assistant.
claude mcp add --transport http jus-mcp https://api.mcp.ai/jusWhat Jus MCP does
Jus MCP provides a single HTTP connection at https://api.mcp.ai/jus to query Brazilian legal databases. It finds lawsuits using court numbers, party names, or taxpayer identifiers (CPF and CNPJ). The tool retrieves DJEN gazette notices and TCU court rulings alongside tender specifications from the PNCP platform.
The server also includes sixteen legal calculation routines. It indexes overdue debts through benchmarks like IPCA and computes rental arrears. For background vetting, it issues clearance certificates like CNDT and flags matches across public sanction registries.
Getting started requires no credentials. Public queries run immediately, while premium calls draw from prepaid credits.
What it helps with
- track ongoing Brazilian lawsuits by court number, CPF, or CNPJ
- audit contractors against CNDT certificates and sanction registers
- calculate judicial monetary correction using official inflation benchmarks
- monitor DJEN legal notices using an OAB attorney credential
- search open public tenders and edicts on the PNCP portal
Example prompts for the agent
- Look up any active lawsuits and court notices for CPF 000.000.000-00.
- Calculate the inflation adjustment for 15,000 BRL using IPCA from January 2021 with interest.
- Check this CNPJ against the CNDT register and public sanctions lists.
How to install Jus MCP
Platform CLI: remote server
claude mcp add --transport http jus-mcp https://api.mcp.ai/jusPlatform CLI: remote server
codex mcp add jus-mcp --url https://api.mcp.ai/jusConfig file
{
"mcpServers": {
"jus-mcp": {
"url": "https://api.mcp.ai/jus"
}
}
}Config file
{
"servers": {
"jus-mcp": {
"type": "http",
"url": "https://api.mcp.ai/jus"
}
}
}Platform CLI: remote server
gemini mcp add -t http jus-mcp https://api.mcp.ai/jusStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Jus MCP
How do I install Jus MCP in Claude Code?
Run claude mcp add --transport http jus-mcp https://api.mcp.ai/jus. The endpoint operates over HTTP and needs no local environment tokens.
What does Jus MCP do?
It connects your agent to Brazilian legal systems, handling lawsuit lookups, gazette publications, tender notices, and background compliance checks. It also runs debt indexing calculations for court settlements.
Do I need an account or API key to use Jus MCP?
No login or setup token is required for basic public requests. If you execute paid lookups, the server draws from a prepaid credit balance.
