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MCP Server

CongressMCP-bridge

An MCP server for the Congress.gov API that consolidates 91 operations into 6 comprehensive legislative tools that can be used by any MCP client (i.e. Claude Desktop), or MCP-compatible AI agent, to query and reason about congressional data.

0
GitHub Stars
8/23/2025
Last Updated
MCP Server Configuration
1{
2 "name": "congressmcp",
3 "command": "npx",
4 "args": [
5 "-y",
6 "congressmcp"
7 ],
8 "env": {
9 "CONGRESSMCP_API_KEY": "your-api-key-here"
10 }
11}
JSON11 lines

README Documentation

congressmcp

Connect Claude Desktop to US Congressional data - bills, amendments, members, committees, and more.

Quick Start (5 minutes)

Installation

npm install -g congressmcp

Setup

  1. Get your API key:

  2. Configure local MCP client:

Add this to your config or cline_mcp_settings.json with your API key:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "congressmcp": {
      "command": "npx",
      "args": [
        "-y", 
        "congressmcp"
      ],
      "env": {
        "CONGRESSMCP_API_KEY": "your-api-key-here"
      }
    }
  }
}
  1. Restart Claude Desktop to activate the connection.

Usage

Ask Claude about:

  • Bills: "Search for recent climate bills"
  • Members: "Who represents California in the Senate?"
  • Committees: "What committees handle healthcare?"
  • Amendments: "Show amendments to HR 1234"
  • Roll Call Votes: "How did senators vote on the infrastructure bill?"
  • And much more legislative data!

Alternative Installation: Self-Hosted

For advanced users who want full control, CongressMCP is open source:

  • Clone the CongressMCP repository
  • Requires Python environment + database setup
  • Congress.gov API key needed
  • See CongressMCP/README.md for technical details

Note: Self-hosting requires significant technical setup and maintenance. The hosted service (above) provides better reliability and support for most users.

Subscription Tiers

  • FREE: All functions with 500 calls/month
  • PRO: $19/month, all functions with 5,000 calls/month
  • ENTERPRISE: Custom pricing, unlimited usage

Support

support@congressmcp.lawgiver.ai

Quick Install

Quick Actions

Key Features

Model Context Protocol
Secure Communication
Real-time Updates
Open Source