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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.

Watch this dependency

Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

Inspect evidence and set up a watch Share public evidence report
Uptime
100.0%
5 direct probes · 30d
Response
1478ms
last probe
Tools
7
callable
Resources
2
readable
Prompts
0
available
Primary URL
https://federal-regulations.caseyjhand.com/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
7 tools, 2 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
9 items in total; 3 or more earns these points.
pass Describes itself 10/10
89 characters; more than 30 earns these points.

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" lists all 50 titles; with a title, that title's top-level divisions (its chapters, or subtitles); and with a title a…

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 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…

Resources · 2

Example Federal Register document

A single Federal Register document by FR number: metadata, citation and pages, and the cross-source handles (Regulations.gov docket and document IDs, printed docket numbers, affected CFR parts, commen…

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 and its default 64,000-character window — mirr…

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"
    }
  }
}