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MCP server for Legalis — Brazilian legal document AI for attorneys

Project description

Legalis MCP Server

MCP (Model Context Protocol) server for Legalis — Brazilian legal document AI for attorneys.

Connect Claude (or any MCP-compatible client) to your Legalis account and interact with cases, generate legal documents, search legislation, and more using natural language.


Quick start

1. Install

pip install legalis-mcp
# or with uv:
uv tool install legalis-mcp

2. Authenticate

legalis-mcp auth

This opens your browser. Log in to Legalis normally — tokens are saved to ~/.legalis/credentials.json (owner-readable only).

3. Configure Claude

Add to your Claude configuration (~/.claude/claude_desktop_config.json for Claude Desktop, or claude_code_config.json for Claude Code):

{
  "mcpServers": {
    "legalis": {
      "command": "legalis-mcp",
      "args": ["serve"]
    }
  }
}

4. Use

In Claude, try:

  • "Liste meus casos no Legalis"
  • "Crie um caso de rescisão indireta para João Silva"
  • "Gere a seção de fundamentos jurídicos da peça X do caso Y"
  • "Pesquise legislação trabalhista sobre justa causa"
  • "Quantas gerações ainda tenho disponíveis este mês?"

Available tools

Tool Description
list_cases List cases (paginated, filterable by status)
get_case Get case details by ID
create_case Create a new case
update_case Update case fields
search_cases Full-text search across cases
list_legal_documents List peças processuais for a case
get_legal_document Get a document with all sections
create_legal_document Create a new legal document
generate_section AI-generate a document section (fatos, fundamentos, pedidos…)
get_case_context Get case context (facts, parties, evidence)
run_interview AI-guided case intake interview
search_legislation Search Brazilian legislation (LexML)
get_my_usage Check AI quota and billing period usage

CLI commands

legalis-mcp auth      # Authenticate via browser
legalis-mcp serve     # Start MCP server (stdio)
legalis-mcp status    # Verify authentication
legalis-mcp logout    # Remove stored credentials

Development

git clone <repo>
cd mcp
pip install -e ".[test]"

# Run unit tests (no external services needed)
pytest tests/unit/ -v

# Run integration tests (requires Docker)
cd ../integration && docker-compose up -d
cd ../mcp
LEGALIS_API_URL=http://localhost:8000 \
LEGALIS_ACCESS_TOKEN=<token> \
LEGALIS_REFRESH_TOKEN=<refresh> \
pytest tests/integration/ -v

Environment variables

Variable Default Description
LEGALIS_API_URL https://hai-production-612f.up.railway.app Backend URL
LEGALIS_ACCESS_TOKEN Pre-issued token (CI/test only)
LEGALIS_REFRESH_TOKEN Refresh token (CI/test only)
LEGALIS_CREDENTIALS_FILE ~/.legalis/credentials.json Credentials file path
LEGALIS_OAUTH_PORT 3742 Local OAuth callback port

Security

  • Credentials are stored in ~/.legalis/credentials.json with 600 permissions (owner read/write only).
  • The OAuth redirect is restricted to http://localhost — open-redirect attacks are blocked at the backend.
  • Tokens are never stored in the MCP configuration file.
  • All API calls go through the existing Legalis backend — RBAC, rate limiting, and quotas apply normally.

Publishing

# PyPI
pip install build twine
python -m build
twine upload dist/*

# Then register at:
# - smithery.ai (MCP marketplace)
# - mcp.so (community directory)
# - github.com/modelcontextprotocol/servers (official list)

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