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Congress.gov Mcp Server

Congress.gov Mcp Server

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github.com/AshwinSundarLegal & Government19Updated 71w ago

About Congress.gov Mcp Server

An unofficial MCP server that wraps the Congress.gov API at api.congress.gov, letting AI assistants query US Congress data directly. It suits users who want to check congressional activity without relying on news coverage.

Key features

  1. 01Wraps the Congress.gov API for data queries
  2. 02Covers bills, amendments, members and committees
  3. 03Provides congressional record and vote lookups
  4. 04Runs via uv with a Congress.gov API key

Use cases

  1. 01Checking bill actions for a given Congress
  2. 02Looking up member information and related legislation
  3. 03Retrieving House and Senate roll call votes

MCP support

This project is an MCP server that exposes Congress.gov API queries to MCP clients. The README lists some endpoint groups as implemented and others as still planned.

Configuration

Local server config is the same for every client. Copy it into your client’s MCP config file.

No install method listed yet

We haven’t collected a package or remote endpoint for this server. Follow the instructions in the project README.

Repository

Tools

No tool list yet

Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.

Details

From the project README

Congress.gov MCP server

smithery badge

Ever wonder what our (US) Congress is up to? Tired of reading the news to find out? Ask the US Congress API yourself.

Unofficial MCP server for the Congress.gov API

Installation

Installing via Smithery

To install congress_gov_mcp for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @AshwinSundar/congress_gov_mcp --client claude
Manual Installation
Prerequisites
  1. Install uv. The easiest way on macOS and Linux is:

    curl -LsSf https://astral.sh/uv/install.sh | sh
    
  2. Get a Congress.gov API key.

  3. Install Claude Desktop, Claude Code, or another client that supports MCP Integrations

Initial Setup
  1. Complete Prerequisites

  2. Clone this repository, and cd in:

    git clone http://github.com/AshwinSundar/congress_gov_mcp
    
    cd congress_gov_mcp
    
  3. Install dependencies:

    uv sync
    
  4. Create a .env file from the template:

    cp .env.template .env
    
  5. Add your Congress.gov API key to the .env file:

congress_gov_mcp/.env

CONGRESS_GOV_API_KEY="your-api-key-here"
Client Configuration
Claude Desktop
  1. Complete Prerequisites

  2. Copy the absolute path to your uv installation:

which uv
  1. Add the following to your Claude Desktop configuration file, inside the mcpServers block:

    macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

    Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "congress_gov_mcp": {
      "command": "/absolute_path/to/uv",
      "args": [
        "run",
        "/absolute_path_to/congress_gov_mcp/server.py"
      ]
    }
  }
}

Claude Code
  1. Complete Prerequisites

  2. Add the following to .mcp.json in the directory you are running Claude Code in, inside the mcpServers block:

{
  "mcpServers": {
    "congress_gov_mcp": {
      "command": "uv",
      "args": [
        "run",
        "/absolute_path_to/congress_gov_mcp/server.py"
      ]
    }
  }
}

Roadmap

  • api.congress.gov
    • /bill
      • /{congress}
      • /{congress}/{billType}
      • /{congress}/{billType}/{billNumber}
        • /actions
        • /amendments
        • /committees
        • /cosponsors
        • /relatedbills
        • /subjects
        • /summaries
        • /text
        • /titles
    • /amendment
      • /{congress}
      • /{congress}/{amendmentType}
      • /{congress}/{amendmentType}/{amendmentNumber}
        • /actions
        • /cosponsors
        • /amendments
        • /text
    • /summaries
      • /{congress}
      • /{congress}/{billType}
    • /congress
      • /{congress}
      • /current
    • /member
      • /{bioguideId}
        • /sponsored-legislation
        • /cosponsored-legislation
    • /committee
      • /{systemCode}
        • /bills
        • /reports
        • /nominations
        • /meetings
        • /hearings
        • /house-communication
        • /senate-communication
    • /committee-report
      • /{congress}
      • /{congress}/{reportType}
      • /{congress}/{reportType}/{reportNumber}
        • /text
    • /committee-print
      • /{congress}
      • /{congress}/{printType}
      • /{congress}/{printType}/{printNumber}
        • /text
    • /committee-meeting
      • /{congress}
      • /{congress}/{chamber}
        • /meetings
    • /hearing
      • /{congress}
      • /{congress}/{chamber}
      • /{congress}/{chamber}/{hearingNumber}
    • /house-vote
      • /{congress}
      • /{congress}/{session}
      • /{congress}/{session}/{rollCallNumber}
    • /congressional-record
      • /{volume}
      • /{volume}/{pagePrefix}
      • /{volume}/{pagePrefix}/{pageNumber}
    • /daily-congressional-record
      • /{volume}
      • /{volume}/{issue}
    • /bound-congressional-record
      • /{year}
      • /{year}/{month}
      • /{year}/{month}/{day}
    • /house-communication
      • /{congress}
      • /{congress}/{communicationType}
      • /{congress}/{communicationType}/{communicationNumber}
    • /house-requirement
      • /{congress}
      • /{congress}/{requirementNumber}
    • /senate-communication
      • /{congress}
      • /{congress}/{communicationType}
      • /{congress}/{communicationType}/{communicationNumber}
    • /nomination
      • /{congress}
      • /{congress}/{nominationNumber}
        • /actions
        • /hearings
    • /crsreport
      • /{productCode}
    • /treaty
      • /{congress}
      • /{congress}/{treatyNumber}
        • /actions
        • /committees

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