Brazilian Law Research MCP Server

A MCP (Model Context Protocol) server for agent-driven research on Brazilian law using official sources.

Foreword

This server empowers models with scraping capacities, thus making research easier to anyone legitimately interested in Brazilian legal matters.

This facility comes with a price: the risk of overloading the official sources' servers if misused. Please be sure to keep the load on the sources to a reasonable amount.

Requirements

git
uv (recommended) or Python >= 3.12
Google Chrome

How to use

Clone the repository:

git clone https://github.com/pdmtt/brlaw_mcp_server.git

Install the dependencies

uv run patchright install

Setup your MCP client (e.g. Claude Desktop):

{
  "mcpServers": {
    "brlaw_mcp_server": {
      "command": "uv",
      "args": [
        "--directory",
        "/<path>/brlaw_mcp_server",
        "run",
        "serve"
      ]
    }
  }
}

Available Tools

StjLegalPrecedentsRequest: Research legal precedents made by the National High Court of Brazil (STJ) that meet the specified criteria.
TstLegalPrecedentsRequest: Research legal precedents made by the National High Labor Court of Brazil (TST) that meet the specified criteria.
StfLegalPrecedentsRequest: Research legal precedents made by the Supreme Court (STF) that meet the specified criteria.

Development

Tooling

The project uses:

Ruff for linting and formatting.
BasedPyright for type checking.
Pytest for testing.

Language

Resources, tools and prompts related stuff must be written in Portuguese, because this project aims to be used by non-dev folks, such as lawyers and law students.

Technical legal vocabulary is highly dependent on a country's legal tradition and translating it is no trivial task.

Development related stuff should stick to English as conventional, such as source code.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Install Server

HTTP connection URL

security – no known vulnerabilities

license - permissive license

quality - confirmed to work

How are these scores calculated?

local-only server

The server can only run on the client's local machine because it depends on local resources.

Tools

A MCP server for agent-driven research on Brazilian law using official sources

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