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congressgov-mcp-server

congressgov-mcp-server is a plugin for Claude Code from cyanheads/congressgov-mcp-server. Its manifest loads nothing; the 32 skills, 1 MCP server it bundles cost 2,220 tokens per session together, scanned A, original, Apache-2.0.

An MCP server that provides access to U.S. congressional information, including bills, votes, members, and committees. MCP is a standard way for an AI agent to use an external data service.

In plain words
What is it for?
Use it to look up or work with U.S. legislation, voting records, congressional members, and committee information through an MCP-compatible agent.
Why use it?
It gives an agent a defined connection to congressional data instead of requiring that information to be gathered manually. It supports local standard-input/output connections and streamable HTTP connections.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

not rated 1repo 8d ago A scan tokens not measured original Apache-2.0

Good fit Use it to look up or work with U.S. legislation, voting records, congressional members, and committee information through an MCP-compatible agent.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add cyanheads/congressgov-mcp-server/plugin install congressgov-mcp-server
View source ↗ cyanheads/congressgov-mcp-server npmjs.com
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/cyanheads/congressgov-mcp-server

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for congressgov-mcp-server

README.md
[![agentmods](https://agentmods.dev/badge/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server/github.svg)](https://agentmods.dev/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server)
Your own site
<a href="https://agentmods.dev/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server"><img src="https://agentmods.dev/badge/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for congressgov-mcp-server

Your own site · 80×15
<a href="https://agentmods.dev/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server"><img src="https://agentmods.dev/badge/plugins/cyanheads/congressgov-mcp-server/congressgov-mcp-server.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 32 skills, 1 MCP server cost 2,220 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

congressgov-mcp-server scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/plugin.json · 22 lines

What it actually says

{
  "name": "congressgov-mcp-server",
  "version": "0.7.0",
  "description": "Access U.S. congressional data - bills, votes, members, committees - through MCP. STDIO & Streamable HTTP.",
  "author": {
    "name": "cyanheads"
  },
  "homepage": "https://github.com/cyanheads/congressgov-mcp-server#readme",
  "repository": "https://github.com/cyanheads/congressgov-mcp-server",
  "license": "Apache-2.0",
  "mcpServers": {
    "congressgov-mcp-server": {
      "command": "npx",
      "args": ["-y", "@cyanheads/congressgov-mcp-server"],
      "env": {
        "MCP_TRANSPORT_TYPE": "stdio",
        "CONGRESS_API_KEY": ""
      }
    }
  }
}
Contents

What it installs

The manifest is a name and a version. 32 skills, 1 MCP server travel with it, and installing the plugin installs all of them — 2,220 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 22 lines scan A d34774cbd1b5

Subscribe to this mod's changes

congressgov-mcp-server is a plugin published in the GitHub repository cyanheads/congressgov-mcp-server (1 stars, last pushed 8d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Researchcongresslegislationlegislative-datamcpmcp-servermodel-context-protocol
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