Connect Claude Desktop to US Congressional data - bills, amendments, members, committees, and more.
npm install -g congressmcp-
Get your API key:
- Visit: https://congressmcp.lawgiver.ai
- Sign up for a free account
- Check your email for your API key
-
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"
}
}
}
}- Restart Claude Desktop to activate the connection.
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!
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.
- FREE: All functions with 500 calls/month
- PRO: $19/month, all functions with 5,000 calls/month
- ENTERPRISE: Custom pricing, unlimited usage