An observation record, not an assessment. Every row below is a change we recorded directly, with the content hash before and after. https://api.sirenic.eu/mcp
14 of these transitions happened while the reported version string stayed the same. A consumer pinning that version would have received a different tool surface with nothing in the version to indicate it. That is a compatibility and review fact, not a security finding and not an allegation of wrongdoing — unversioned iteration is normal practice and is frequently deliberate.
| observed at (UTC) | change | version signal | reported version | tools | surface hash |
|---|---|---|---|---|---|
| 2026-10-10 07:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.2.1 (unchanged) | no tool-name change recorded | 2df8012f1518 → b4d4eb3b2692 |
| 2026-10-10 01:40:03Z | SURFACE_CHANGED | version-signalled | 1.2.0 → 1.2.1 | +get_french_company_briefing | 439fc3adf631 → bc9690890af5 |
| 2026-10-09 19:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.2.0 (unchanged) | no tool-name change recorded | 5b9da1fdaffe → 21ae304deef3 |
| 2026-10-09 07:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.2.0 (unchanged) | no tool-name change recorded | ebb6aeb0a514 → 5b9da1fdaffe |
| 2026-10-09 01:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.2.0 (unchanged) | no tool-name change recorded | 4cfd16cff7e5 → ebb6aeb0a514 |
| 2026-10-08 19:40:05Z | DESCRIPTION_CHANGED | version-signalled | 1.1.0 → 1.2.0 | no tool-name change recorded | 0ee262277c93 → 4cfd16cff7e5 |
| 2026-10-08 13:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | c85e6f59e05c → 0ee262277c93 |
| 2026-10-08 13:40:03Z | PARAMS_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | ddda8ecd235c → 2e26e6a34a50 |
| 2026-10-08 07:40:02Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | b460d8632300 → c85e6f59e05c |
| 2026-10-08 01:40:02Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | 721e18f2b01e → b460d8632300 |
| 2026-10-08 01:40:02Z | SURFACE_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | +get_french_company_updates_since | 49c4801513b3 → 439fc3adf631 |
| 2026-10-07 19:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | 00c386e9372e → 721e18f2b01e |
| 2026-10-07 13:40:04Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | 116666ed0837 → 00c386e9372e |
| 2026-10-07 13:40:04Z | SURFACE_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | +get_french_company_default_risk_batch +get_french_company_identity_batch | 6411e2b85a26 → 49c4801513b3 |
| 2026-10-04 01:12:58Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | no tool-name change recorded | 756072ef407b → 116666ed0837 |
| 2026-10-02 19:40:04Z | SURFACE_CHANGED | SILENT — version string did not move | 1.1.0 (unchanged) | +query_french_companies | bfc23907ce50 → 6411e2b85a26 |
This section is identical for ~92% of publishers and is published as
shared context, not as a finding about api.sirenic.eu. 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.