An observation record, not an assessment. Every row below is a change we recorded directly, with the content hash before and after. https://mcp.smarterweather.com
| observed at (UTC) | change | version signal | reported version | tools | surface hash |
|---|---|---|---|---|---|
| 2026-10-09 19:40:03Z | DESCRIPTION_CHANGED | version-signalled | 0.0.0.172 → 0.0.0.173 | no tool-name change recorded | 06c5eb441d26 → 9d49790518b0 |
| 2026-10-09 19:40:03Z | PARAMS_CHANGED | version-signalled | 0.0.0.172 → 0.0.0.173 | no tool-name change recorded | c83e6f2f3e02 → 451234f1479c |
| 2026-10-09 07:40:03Z | DESCRIPTION_CHANGED | version-signalled | 0.0.0.168 → 0.0.0.172 | no tool-name change recorded | 4b07bb4b22ca → 06c5eb441d26 |
| 2026-10-09 01:40:03Z | DESCRIPTION_CHANGED | version-signalled | 0.0.0.166 → 0.0.0.168 | no tool-name change recorded | 03af3e8b1f85 → 4b07bb4b22ca |
| 2026-10-07 19:40:03Z | DESCRIPTION_CHANGED | version-signalled | 0.0.0.163 → 0.0.0.165 | no tool-name change recorded | cf544f90676e → 03af3e8b1f85 |
| 2026-10-07 19:40:03Z | PARAMS_CHANGED | version-signalled | 0.0.0.163 → 0.0.0.165 | no tool-name change recorded | 810b03141865 → c83e6f2f3e02 |
| 2026-10-06 19:40:03Z | SURFACE_CHANGED | version-signalled | 0.0.0.161 → 0.0.0.162 | +search_catalog | da79ce28377c → 67252ff86a3c |
| 2026-10-05 01:40:03Z | DESCRIPTION_CHANGED | version-signalled | 0.0.0.160 → 0.0.0.161 | no tool-name change recorded | 7f0572c016c1 → 08d4ad20cc30 |
| 2026-10-02 01:40:04Z | SURFACE_CHANGED | version-signalled | 0.0.0.159 → 0.0.0.160 | +get_observed_precipitation | b695e8189d9c → da79ce28377c |
| 2026-10-01 19:40:04Z | PARAMS_CHANGED | version-signalled | 0.0.0.157 → 0.0.0.159 | no tool-name change recorded | — |
This section is identical for ~92% of publishers and is published as
shared context, not as a finding about mcp.smarterweather.com. 90 dependency
packages sit beneath the measured MCP population; 41 have a
single maintainer and 31 have not published in over two years.
The widest is zod at
80.46% of npm-backed servers (8529 servers,
1 maintainer, last publish 2026-09-13).
These are properties of the shared SDK dependency closure. Any page claiming this set as
one operator's personal exposure is misreading a universal fact as a private one.
Source: state/mcp-census/chokepoint-maintainers.json, as_of 2026-10-07.
Observation window 2026-09-21 → 2026-10-10.
22,294 servers were observed; 2,214
were seen to change and 20,080 were observed and
recorded no change — that negative control is why a non-zero count here means something.
Across the corpus, 4,781 of
6,334 changes carried no version signal, and
1,690 of those added or removed tools.
What this does NOT cover: servers outside the observed set; changes that
occurred before 2026-09-21; changes that began and reverted between two observations;
and any server reachable only with credentials we do not hold. A server's absence from this
record is not evidence it did not change — only that we did not observe it.
Universe captured 2026-10-10T19:40:03.823Z. Produced by core/surface_history_page.cjs (reads core/surface_clock producers).
Hashes are of the served tool surface and are recomputable from the server's own response.