A comprehensive Model Context Protocol (MCP) server for US legal data, providing access to Congress bills, Federal Register documents, US Code sections, and public comments on regulations.

• Search bills and resolutions
• Get recent legislation
• Access voting records and member information
• Real-time legislative data

• Search regulations and executive orders
• Get recent agency documents
• Access public comments
• Full document text and metadata

• Search federal statutes
• Browse by title and section
• Historical versions
• Complete legal text

• Search public comments
• Access rulemaking documents
• Agency information
• Public input on regulations

npm install
npm run build

# For enhanced Congress.gov access (free tier available)
export CONGRESS_API_KEY="your_congress_api_key"

# For Regulations.gov access
export REGULATIONS_GOV_API_KEY="your_regulations_gov_api_key"

npm start

Search for bills and resolutions in Congress.gov

• Query: Search terms (e.g., "immigration", "healthcare")
• Congress: Optional Congress number (100-120)
• Limit: Number of results (1-50)

Search Federal Register documents (regulations, executive orders)

• Query: Search terms
• Limit: Number of results (1-50)

Search US Code sections (federal statutes)

• Query: Search terms
• Title: Optional title number (1-54)
• Limit: Number of results (1-50)

Search public comments on regulations

• Query: Search terms
• Limit: Number of results (1-50)

Comprehensive search across all sources

• Query: Search terms
• Limit: Results per source (1-50)

Get recently introduced bills

• Congress: Optional Congress number
• Limit: Number of results (1-50)

Get recently published Federal Register documents

• Limit: Number of results (1-50)

Get information about available data sources

1. Visit https://api.congress.gov/
2. Sign up for a free account
3. Get your API key
4. Set CONGRESS_API_KEY environment variable

1. Visit https://api.regulations.gov/
2. Sign up for an account
3. Get your API key
4. Set REGULATIONS_GOV_API_KEY environment variable

{
  "tool": "search-congress-bills",
  "arguments": {
    "query": "immigration",
    "congress": 118,
    "limit": 10
  }
}

{
  "tool": "search-federal-register",
  "arguments": {
    "query": "environmental protection",
    "limit": 5
  }
}

{
  "tool": "search-us-legal",
  "arguments": {
    "query": "healthcare",
    "limit": 20
  }
}

MIT License - see LICENSE file for details.

Contributions welcome! Please read the contributing guidelines and submit pull requests.