MCP server

Federal Register

io.github.pipeworx-io/federal-register

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Federal Register MCP — US Federal Register API (free, no auth)

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

45

Token cost

About 27,747 tokens per request

Sets up in

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

Last checked

26 Oct 2026, 08:29 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 federal-register https://gateway.pipeworx.io/federal-register/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.federal-register]
url = "https://gateway.pipeworx.io/federal-register/mcp"

Gemini CLI

{"mcpServers":{"federal-register":{"httpUrl":"https://gateway.pipeworx.io/federal-register/mcp"}}}

Cursor

{"mcpServers":{"federal-register":{"url":"https://gateway.pipeworx.io/federal-register/mcp"}}}

VS Code

{"servers":{"federal-register":{"type":"http","url":"https://gateway.pipeworx.io/federal-register/mcp"}}}

Antigravity

agy mcp add federal-register https://gateway.pipeworx.io/federal-register/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":"federal-register","server_url":"https://gateway.pipeworx.io/federal-register/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"federal-register","server_url":"https://gateway.pipeworx.io/federal-register/mcp"}

Tools

• get_document ~162 tokens
  Get full details for a Federal Register document by its document number (e.g., "2024-12345"). Returns title, abstract, full text link, agencies, dates, and docket information. For a presidential document (executive order, proclamation, memorandum) this also includes executive_order_number, signing_d
• recent_rules ~190 tokens
  Browse the most recently published final rules and regulations from the Federal Register, **with no topic filter** — returns whatever was published most recently across every agency (FAA airworthiness directives, Coast Guard safety zones, EPA tolerance exemptions, etc.). For questions about a specif
• search_documents ~1092 tokens
  Search the US Federal Register by topic / keyword for proposed rules, final rules, notices, and presidential documents. **Use this whenever the question mentions a SUBJECT** ("EV tax credits", "AI export controls", "PFAS regulations", "clean energy", "ozempic labeling", etc.) — recent_rules takes no

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