vinothezhumalai/legalmcpserver

Legal MCP Server

A Model Context Protocol (MCP) server for legal document analysis, providing AI-powered summarization and classification of legal documents across 8 major areas of law.

Features

• Document Summarization: Extract key facts, legal issues, holdings, and reasoning from legal documents
• Legal Classification: Classify documents into 8 legal areas with confidence scores
• Multi-Area Analysis: Support for Contract, Tax, Constitutional, Property, Tort, Securities, Criminal, and Administrative Law
• Thomson Reuters LLM Integration: Configured for Thomson Reuters' internal LLM infrastructure

Legal Areas Covered

1. Contract Law - Agreements, breaches, performance, remedies
2. Tax Law - Taxation, IRS matters, compliance, disputes
3. Constitutional Law - Constitutional rights, government powers, judicial review
4. Property Law - Real estate, ownership, transfers, zoning
5. Tort Law - Personal injury, negligence, damages
6. Securities Law - Investment securities, SEC regulations, fraud
7. Criminal Law - Criminal charges, prosecution, defense
8. Administrative Law - Government agencies, regulations, procedures

Installation

# Clone the repository
git clone https://github.com/vinothezhumalai/legalmcpserver.git
cd legalmcpserver

# Install dependencies
npm install

# Build the project
npm run build

Configuration

Copy .env.example to .env and configure:

cp .env.example .env

The server is pre-configured for Thomson Reuters infrastructure:

• Base URL: https://litellm.int.thomsonreuters.com
• Model: anthropic/claude-sonnet-4-20250514

Usage

Running the MCP Server

# Development mode
npm run dev

# Production mode
npm run build && npm start

MCP Tools Available

1. summarize_legal_document

Generates comprehensive legal summaries including:

• Executive summary
• Key facts
• Legal issues
• Court holdings
• Legal reasoning
• Relevant precedents

Input:

{
  "document": {
    "content": "Legal document text...",
    "title": "Case Title",
    "caseNumber": "2023-CV-1234",
    "jurisdiction": "Superior Court",
    "date": "2023-06-15"
  },
  "options": {
    "maxLength": 500,
    "includeKeyFacts": true,
    "includeHolding": true,
    "includeReasoning": true,
    "includeCitations": false
  }
}

2. classify_legal_document

Classifies documents into legal areas with confidence scores:

Input:

{
  "document": {
    "content": "Legal document text...",
    "title": "Document Title"
  },
  "options": {
    "confidenceThreshold": 0.7,
    "includeSubcategories": true,
    "multiLabel": false
  }
}

3. analyze_legal_document_full

Performs both summarization and classification in one call.

Sample Legal Scenarios

The server includes 8 diverse legal scenarios for testing, accessible via the resource legal://sample-scenarios.

Integration with Claude Code

Add to your MCP configuration:

{
  "mcpServers": {
    "legal-analyzer": {
      "command": "node",
      "args": ["dist/index.js"],
      "cwd": "/path/to/legalmcpserver"
    }
  }
}

API Response Format

Summarization Response

{
  "summary": "Executive summary text...",
  "keyFacts": ["Fact 1", "Fact 2"],
  "legalIssues": ["Issue 1", "Issue 2"],
  "holding": "Court's decision...",
  "reasoning": "Legal reasoning...",
  "precedents": ["Case 1", "Case 2"],
  "wordCount": 245
}

Classification Response

{
  "primaryArea": "Contract Law",
  "confidence": 0.92,
  "secondaryAreas": [
    {
      "area": "Tort Law",
      "confidence": 0.35
    }
  ],
  "subcategories": ["Breach of Contract", "Damages"],
  "reasoning": "Document discusses breach of construction contract..."
}

Development

# Install dependencies
npm install

# Run in development mode
npm run dev

# Build for production
npm run build

# Run tests (if available)
npm test

Security

• API keys are configured through environment variables
• All inputs are validated using Zod schemas
• Error handling prevents sensitive information leakage

License

MIT License - see LICENSE file for details.