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US Codex

Official registry Developer tools

Federal law: US Code, CFR, public laws, bills and executive orders, cross-linked and versioned.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http us-codex 'https://uscodex.org/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "us-codex": {
            "type": "http",
            "url": "https://uscodex.org/mcp"
        }
    }
}
Remote (sse)
Claude Code 
claude mcp add --transport sse us-codex 'https://uscodex.org/mcp/sse'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "us-codex": {
            "type": "sse",
            "url": "https://uscodex.org/mcp/sse"
        }
    }
}

Frequently asked questions

What is US Codex?

Federal law: US Code, CFR, public laws, bills and executive orders, cross-linked and versioned.

How do I install US Codex?

It runs as a remote server. In Claude Code: claude mcp add --transport http us-codex 'https://uscodex.org/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does US Codex need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains US Codex?

It is published by org.uscodex. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.