MCP server for the US Code of Federal Regulations — look up, search, and track changes to CFR sections via the eCFR API
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add us-code-of-federal-regulations -- uvx cfr-mcp~/.codex/config.toml
[mcp_servers.us-code-of-federal-regulations]
command = "uvx"
args = ["cfr-mcp"]
# codex mcp add us-code-of-federal-regulations -- uvx cfr-mcp~/.cursor/mcp.json
{
"mcpServers": {
"us-code-of-federal-regulations": {
"command": "uvx",
"args": [
"cfr-mcp"
]
}
}
}.vscode/mcp.json
{
"servers": {
"us-code-of-federal-regulations": {
"type": "stdio",
"command": "uvx",
"args": [
"cfr-mcp"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"us-code-of-federal-regulations": {
"command": "uvx",
"args": [
"cfr-mcp"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"us-code-of-federal-regulations": {
"command": "uvx",
"args": [
"cfr-mcp"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"us-code-of-federal-regulations": {
"command": "uvx",
"args": [
"cfr-mcp"
]
}
}
}