Congress Gov MCP Server

Ever wonder what our (US) Congress is up to? Tired of reading the news to find out? Ask the US Congress API yourself. The congress gov mcp mcp server wraps that behind the Model Context Protocol, so an assistant can use it through 1 defined tool rather than through you.

Adding it to your client

The server ships on npm as @smithery/cli, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Its toolset

Everything the assistant can do here goes through one of these:

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

Configuration

You will need one environment variable: CONGRESS_GOV_API_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

1. Install uv. The easiest way on macOS and Linux is: 2. Get a Congress.gov API key. 3. Install Claude Desktop, Claude Code, or another client that supports MCP Integrations

Caveats

• It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
• Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
• MCP clients confirm each tool call by default. Leave that on until you have watched what the congress gov mcp mcp server does with a few real requests.

When to reach for it

Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Congress Gov MCP's toolset — Prerequisites — is a fair guide to whether it matches your workflow. It is maintained by AshwinSundar; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Congress Gov MCP's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.