Legal MCP Server for Claude Provides Access to 4M+ US Court Opinions

Legal MCP Server for Claude AI

A developer has built an MCP (Model Context Protocol) server that provides Claude AI with access to over 4 million real US court opinions, eliminating citation hallucinations in legal queries. The tool is free, open-source under MIT license, and has no paid tiers.

Key Features and Tools

The server includes 18 tools covering:

• Case law search
• Citation tracing
• Bluebook citation parsing
• Clio practice management integration
• PACER federal filings access

Users can ask Claude questions like:

• "Find Supreme Court cases about qualified immunity after 2020"
• "Parse this citation: 347 U.S. 483 (1954)"
• "Who cited Carpenter v. United States?"

The server returns real cases with accurate citations and links.

Installation and Setup

Install via pip:

pip install git+https://github.com/Mahender22/legal-mcp.git

For Claude Desktop, add to config:

{
  "mcpServers": {
    "legal-mcp": {
      "command": "/path/to/legal-mcp-env/bin/legal-mcp",
      "env": {
        "LEGAL_MCP_DEMO": "true"
      }
    }
  }
}

For Claude Code:

claude mcp add legal-mcp -e LEGAL_MCP_DEMO=true -- /path/to/legal-mcp-env/bin/legal-mcp

The tool was built entirely with Claude Code (Opens) and requires no account or credit card to use.