~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.json~/.config/Claude/claude_desktop_config.json{
"mcpServers": {
"congressmcp": {
"command": "uvx",
"args": [
"congressmcp"
],
"env": {
"CONGRESS_API_KEY": "your-api-key-here"
}
}
}
}