An observation record, not an assessment. Every row below is a change we recorded directly, with the content hash before and after. https://www.constat-auto.com/api/mcp
Read this as alternation, not instability. These 4 transitions move between only 2 distinct surfaces, returning to a previously-served hash 2 times. That is the signature of more than one deployment answering the same hostname — a load balancer or a staged rollout — rather than a product changing 4 times. We are not reporting 4 changes. The consumer-facing fact is narrower and still real: the tool list you receive from this host depends on which instance answers you, and the reported version does not distinguish them.
| observed at (UTC) | change | version signal | reported version | tools | surface hash |
|---|---|---|---|---|---|
| 2026-10-10 13:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | no tool-name change recorded | e0a2126ea69c → caec8e6dd3ab |
| 2026-10-09 13:40:04Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | no tool-name change recorded | caec8e6dd3ab → e0a2126ea69c |
| 2026-10-08 07:40:02Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | no tool-name change recorded | e0a2126ea69c → caec8e6dd3ab |
| 2026-10-08 01:40:02Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | no tool-name change recorded | caec8e6dd3ab → e0a2126ea69c |
This section is identical for ~92% of publishers and is published as
shared context, not as a finding about www.constat-auto.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.