io.ecfr/ecfr
eCFR.io Federal Regulations
Search and read US federal regulations with legal and inline citations linking to ecfr.io.
timeout probed 2026-10-15
fetch failed | Connect Timeout Error (attempted address: ecfr.io:443, timeout: 10000ms) | UND_ERR_CONNECT_TIMEOUT
- Endpoint
- https://ecfr.io/mcp (streamable-http)
- Host
- ecfr.io
- Repository
- https://github.com/lrehmann/ecfr-mcp
- Website
- https://ecfr.io/developers
- Registry
- active, updated 2026-09-30 · registry entry
- Reachable
- 6 of the last 6 probes
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:11 | alive | 649 ms | 3 | 924 | 509 |
| 2026-10-05 00:27 | alive | 177 ms | 3 | 509 | |
| 2026-10-04 10:01 | alive | 866 ms | 3 | 509 | |
| 2026-10-04 07:54 | alive | 836 ms | 3 | 509 | |
| 2026-10-03 20:34 | alive | 1.2 s | 3 | 509 | |
| 2026-10-03 17:51 | alive | 307 ms | 3 | 509 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.ecfr/ecfr)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.