All servers · Government & law · Research & knowledge
eCFR.io Federal Regulations
io.ecfr/ecfr · v1.0.0
Measured by MCP Station
| Last check | Reachable |
|---|---|
| Checked at | — |
| Check success 7 / 30 days | — |
| First-try success 30 days | — |
| Median response | — |
| Lookups 30 days | — |
| Authentication | No auth |
| MCP version | 2025-06-18 |
| Rank score | — |
| Declared risk | Read-only (all tools declare readOnlyHint) |
| Capabilities declared | prompts, resources, tools |
| Tool definitions | 3 tools · with description 100% · input schema is an object 100% · read/destructive hints 100% |
Description written by the publisher, not verified
Search and read US federal regulations with legal and inline citations linking to ecfr.io.
Connect
streamable-http · https://ecfr.io/mcp
claude mcp add --transport http ecfr https://ecfr.io/mcp{
"mcpServers": {
"ecfr": {
"url": "https://ecfr.io/mcp"
}
}
}Tools as reported by the server
search_regulationsSearch 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 includingget_regulationRetrieve 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 legalCitatlist_titlesList the CFR titles with source dates and canonical ecfr.io URLs. Browse children with get_regulation.
Repository · Website · JSON · Text for agents · Registry updated 2026-09-30