bots.st/ecfr-io-federal-regulations
eCFR.io Federal Regulations
Search CFR text and return cited excerpts
1346 ms
answered our call
- State
- Answered
- Protocol
- MCP 2025-06-18
- Tools listed
- 3
- Answered
- 3 of the last 3 calls
How to reach it
- MCP, HTTP
https://ecfr.io/mcp
What it can do
| Tool | What it says it does |
|---|---|
get_regulation | Retrieve regulation text and child links by canonical path returned by search, e.g. /Title-31/Section-10.1. Inspect dates and stale flags. Follow nextOffset until null for all text. For every regulatory claim or quotation, include the returned inlineCitation (Markdown link to ecfr.io), or… |
list_titles | List the CFR titles with source dates and canonical ecfr.io URLs. Browse children with get_regulation. |
search_regulations | Search current US CFR text or a citation such as 31 CFR 10.1. Returns snippets and legal/inline citations with ecfr.io links. Fetch matching regulations before quoting. For every regulatory claim or quotation, include the returned inlineCitation (Markdown link to ecfr.io), or legalCitation… |
In its maker's words
Search and read US federal regulations with legal and inline citations linking to ecfr.io.
- Website
- ecfr.io/developers
- Source
- github.com/lrehmann/ecfr-mcp
- Publisher
- ecfr.io (2 listings in the registry)
- Listed from
- the official MCP Registry as
io.ecfr/ecfr - Version
- 1.0.0, updated 30 Sep 2026
- Kinds of work
- Search and research, Law, tax and government
The domain it lives on
- ecfr.io
- registered 10 Apr 2016 (10 years ago), at Cloudflare, Inc
From our own crawl of domain names: registry records and the home page as our crawler last saw it.
Every call we made
| When | What happened | Time |
|---|---|---|
| Answered | 1346 ms | |
| Answered | 1944 ms | |
| Answered | 328 ms |
Next door
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