MCP server

US Code Federal Statutes

io.ecfr/uscode

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

Search and read U.S. Code statutes with legal and inline citations linking to uscode.ecfr.io.

Website Source

At a glance

Type

MCP server

Publisher

ecfr.io (verified by the MCP Registry)

Status

Working at last check

Tools

3

Token cost

About 702 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http uscode https://uscode.ecfr.io/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.uscode]
url = "https://uscode.ecfr.io/mcp"

Gemini CLI

{"mcpServers":{"uscode":{"httpUrl":"https://uscode.ecfr.io/mcp"}}}

Cursor

{"mcpServers":{"uscode":{"url":"https://uscode.ecfr.io/mcp"}}}

VS Code

{"servers":{"uscode":{"type":"http","url":"https://uscode.ecfr.io/mcp"}}}

Antigravity

agy mcp add uscode https://uscode.ecfr.io/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"uscode","server_url":"https://uscode.ecfr.io/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"uscode","server_url":"https://uscode.ecfr.io/mcp"}

Tools

• get_section ~329 tokens
  Retrieve full statutory section text in character-bounded pages by a canonical path returned by search, e.g. /title/5/section/552. Returns linked citations and published release metadata. For every statutory claim or quotation, include the returned inlineCitation (a Markdown link to uscode.ecfr.io),
• list_titles ~78 tokens
  List published U.S. Code titles with canonical site links, legal citations, and release metadata. Use search_uscode to find sections.
• search_uscode ~295 tokens
  Search the published United States Code by full text or a section citation such as 5 USC 552. Returns snippets, release metadata, and legal/inline citations linked to uscode.ecfr.io. For every statutory claim or quotation, include the returned inlineCitation (a Markdown link to uscode.ecfr.io), or l

Browse

• Converting to Markdown
• Legal research
• Government and public data

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