Back to search
100
MCP live MCP 2026-07-28 streamable-http

io.github.cyanheads/federal-regulations-mcp-server

io.github.cyanheads/federal-regulations-mcp-server

Search and trace US federal rules across the Federal Register, eCFR, and Regulations.gov.

Uptime
100.0%
1 direct probes · 30d
Response
701ms
last probe
Tools
7
callable
Resources
2
readable
Prompts
0
available
Primary URL
https://federal-regulations.caseyjhand.com/mcp

Tools · 7

regulations_search_rules

Search the Federal Register — the daily journal of US proposed rules, final rules, notices, and presidential documents (1994–present) — filtering by full-text query, document type, agency slug, public…

regulations_get_document

Fetch one Federal Register document by its FR document number — full metadata (title, type, agencies, abstract, action, effective/comment dates, RINs) plus the cross-source handles that make this a wo…

regulations_browse_cfr

Explore the codified Code of Federal Regulations via eCFR in two modes. "structure" walks the CFR hierarchy (all 50 titles, or one title's chapters → parts → sections) to discover a cite when the exac…

regulations_get_cfr_section

Read the codified text at a CFR location via eCFR — current or as of a past date. Answers "what does 40 CFR 50.1 say today?" and "...as of 2019-01-01?". Three locations: title + part + section for one…

regulations_get_docket

Pull a rulemaking docket from Regulations.gov by docket ID (e.g. "EPA-HQ-OAR-2025-0194") — the docket's metadata (title, agency, RIN, abstract) and the documents filed in it (NPRM, final rule, support…

regulations_find_comments

Fetch public comments on a Federal Register document or a Regulations.gov docket — the unique corpus of what citizens and organizations actually submitted. Provide exactly one targeting parameter: doc…

regulations_list_open_comments

List rules currently open for public comment, filterable by agency slug and topic, sorted by closing date (soonest first). "What can I still weigh in on?" Runs on the Federal Register's open-comment w…

Resources · 2

Example Federal Register document

A single Federal Register document by FR number: metadata plus the cross-source handles (docket ID, affected CFR parts, comment count) that chain into the comment and codified-text tools. Mirrors regu…

regulations://document/2025-14555
Example CFR section (40 CFR 50.1)

Codified text of a current CFR section by title/part/section (e.g. regulations://cfr/40/50/50.1). Mirrors regulations_get_cfr_section at the current date — mirror-backed with a live eCFR fallback. Sec…

regulations://cfr/40/50/50.1

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "io.github.cyanheads/federal-regulations-mcp-server": {
      "url": "https://federal-regulations.caseyjhand.com/mcp",
      "transport": "streamable-http"
    }
  }
}