Is an API Key required for Federal Register API?

No. The Federal Register API is a free and open service provided by the United States government. This server works out of the box without any static credentials required.

What types of documents are available?

The API provides access to rules, proposed rules, notices, and presidential documents published in the Federal Register.

Can the agent show agency publication counts?

Yes. The `list_federal_agencies` tool retrieves the list of agencies along with their metadata, assisting in identifying which entities publish most frequently.

Federal Register API MCP Connector for Claude

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Access US public documents — audit rules and agencies via AI.

4 tools Official Updated Jun 28, 2026 Official Vinkius Partner

More Details Connect to Claude

Empower your AI agent to orchestrate your entire public policy research and document auditing workflow with the Federal Register API, the authoritative source for United States government rules and notices. By connecting the Federal Register to your agent, you transform complex administrative searches into a natural conversation. Your agent can instantly retrieve active document details, audit agency publications, and query specific rule metadata without you ever touching a government portal. Whether you are conducting regulatory research or managing regional policy constraints, your agent acts as a real-time administrative consultant, ensuring your data is always verified and precise.

What you can do

Document Auditing — Search for thousands of public documents and rules by keyword and retrieve detailed metadata, including publication dates and agencies.
Agency Oversight — Audit all US government agencies that publish in the Federal Register to understand the administrative reach of public sector rules instantly.
Rule Discovery — Query specific document numbers to assist in deep-dive regulatory and temporal classification.
Metadata Intelligence — Retrieve unique document identifiers and HTML links to assist in professional policy auditing.
Operational Monitoring — Check API status to ensure your document research workflow is always operational.

How it works

Subscribe to this server
No API Key required (Federal Register is a free and open service)
Start managing your administrative intelligence through Claude, Cursor, or any MCP-compatible client

Who is this for?

Policy Analysts & Journalists — monitor government notices and retrieve official metadata straight from your workflow.
Legal Researchers — verify public rules and audit agency patterns without manual searching.
Regulatory Leads — perform rapid audits of administrative markers and identify relevant policy patterns through natural language.
Operations Leads — automate government data querying to orchestrate cross-functional outreach teams smoothly.

public-policyregulatory-dataus-governmentdocument-auditingadministrative-law