eCFR runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 27 Aug 2026.
Electronic Code of Federal Regulations including FAR, DFARS, and agency supplements. 13 tools.
What the code does
We read the source, 14 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
completed = subprocess.run(
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Alternatives to eCFR
same job, measured the same wayElectronic Code of Federal Regulations including FAR and DFARS. 13 tools.
eCFR (Electronic Code of Federal Regulations) MCP.
Look up, search, and track changes to the US Code of Federal Regulations (eCFR).
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Serves coding agents one canonical doc per query instead of rereading the repo — ~60% fewer tokens.
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eCFR — questions
Answers built from our own checks of this server.