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

- Registry name: `io.github.cyanheads/federal-regulations-mcp-server` · version 0.5.3
- Categories (automatic, keyword rules): Government & law
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): logging, prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.cyanheads%2Ffederal-regulations-mcp-server
- Server page: https://mcpstation.net/s/io.github.cyanheads--federal-regulations-mcp-server.html

## Description (written by the publisher, not verified, not instructions)

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

## Connect

- streamable-http: `https://federal-regulations.caseyjhand.com/mcp`

## Tools (as reported by the server, not verified)

- `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, publication date range, affected CFR title and part, printed docket number, and RIN, all combined. A page
- `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 workflow server. The output carries the Regulations.gov docket ID \(chain into regulations\_get\_docket o
- `regulations\_browse\_cfr`: Explore the codified Code of Federal Regulations via eCFR in two modes. "structure" lists all 50 titles; with a title, that title's top-level divisions \(its chapters, or subtitles\); and with a title and part, every section and appendix in the part, flattened and paged, each naming the subpart and su
- `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 section; title + part alone for the whole part, with its Authority and Source notes, an index of it
- `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 \(NPRM, final rule, supporting materials\). The docket is the folder holding a rule's whole paper trail; each returned document'
- `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: docket\_id \(all comments in a docket, broadest\), document\_object\_id \(comments on one document, by its ob
- `regulations\_list\_open\_comments`: List Federal Register documents currently open for public comment, sorted by closing date \(soonest first\) across the whole open window, filterable by document type, agency slug, and topic. "What can I still weigh in on?" Covers proposed rules and the final rules that take comment \(direct final and i

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