Give your AI assistant access to comprehensive U.S. Congressional data

Interact with the Congress.gov API with AI through any MCP client. Get live congressional data including bills, votes, committee reports, member information, and more. Research legislation, track voting patterns, and access official government documents through natural language.

6 organized toolsets • 92 operations | Official Congress.gov data | Ready in 5 minutes

Get up and running in 5 minutes with our hosted service:

Visit congressmcp.lawgiver.ai to register and get your API key.

npm install -g congressmcp

Add this to your MCP client configuration (e.g., Claude Desktop):

{
  "mcpServers": {
    "congressional-mcp": {
      "command": "npx",
      "args": ["-y", "congressmcp"],
      "env": {
        "CONGRESSMCP_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart your MCP client and start asking about bills, votes, committees, and more!

Example: "Find recent climate change bills in the current Congress"

Why use our hosted service?

• ✅ Reliable uptime and automatic updates
• ✅ Professional support and documentation
• ✅ No server management required

6 comprehensive categories of congressional data:

• Search and analyze bills, amendments, and treaties
• Track legislation through the legislative process
• Access full bill text, voting records, and sponsor information
• Find bill summaries and legislative analysis

• Research representatives and senators by name, state, or district
• Find committee membership, leadership, and activities
• Track member voting patterns and sponsored legislation
• Access member biographical and contact information

• Access detailed House and Senate voting records
• Research presidential nominations and confirmations
• Analyze voting patterns and member positions
• Find roll call votes and voting statistics

• Search the Congressional Record and daily proceedings
• Access committee hearing transcripts and witness testimony
• Find House and Senate floor communications
• Browse historical congressional documents

• Access committee reports, prints, and publications
• Find committee meeting schedules, minutes, and agendas
• Research committee-specific legislative activities
• Track committee markup sessions and votes

• Access Congressional Research Service (CRS) reports
• Get detailed Congress session information and statistics
• Use advanced search and filtering capabilities
• Access professional legislative research tools

Policy Research
"Find all climate change bills introduced in the 118th Congress and their current status"

Voting Analysis
"How did senators from California vote on recent healthcare legislation?"

Member Research
"Who are the current members of the House Energy and Commerce Committee?"

Bill Tracking
"What's the latest action on H.R. 1234 and who are its cosponsors?"

Committee Activity
"Show me recent hearings by the Senate Judiciary Committee on AI regulation"

Need full control or want to contribute? You can run your own instance.

Note: Self-hosting requires technical setup and maintenance. Our hosted service at congressmcp.lawgiver.ai provides better reliability for most users.

1. Clone and configure:

   git clone https://github.com/your-org/congressmcp
   cd congressmcp
   cp .env.example .env

2. Add your Congress.gov API key:

   # Edit .env file
   CONGRESS_API_KEY=your_api_key_here

3. Install and run:

   pip install -r requirements.txt
   python run_server.py

For production deployments, see .env.example for complete configuration options including:

• Authentication and user management
• Database integration (Supabase)
• Payment processing (Stripe)
• Email services (Resend)

• Setup Guide - Complete setup and usage documentation
• API Reference - Technical details for developers
• GitHub Issues - Bug reports and feature requests

We welcome contributions!

1. Fork the repository
2. Create a feature branch
3. Add tests for new functionality
4. Submit a pull request

Open source under the Sustainable Use License:

• ✅ Free to use and modify
• ✅ Self-hosting encouraged
• ✅ Commercial use allowed
• ❌ Cannot offer as competing hosted service

• Documentation - congressmcp.lawgiver.ai
• GitHub Issues - Bug reports and feature requests
• Email - support@congressmcp.lawgiver.ai

Built for government transparency and accessible civic data