An observation record, not an assessment. Every row below is a change we recorded directly, with the content hash before and after. https://mcp.darwin.so/mcp
6 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 |
|---|---|---|---|---|---|
| 2026-10-08 19:40:05Z | DESCRIPTION_CHANGED | version-signalled | 0.10.0 → 0.11.0 | no tool-name change recorded | 85f6e0344d36 → a5109c12ed78 |
| 2026-10-08 19:40:05Z | PARAMS_CHANGED | version-signalled | 0.10.0 → 0.11.0 | no tool-name change recorded | 4813f0e0d4ff → 65991b50c1ac |
| 2026-10-08 19:40:05Z | SURFACE_CHANGED | version-signalled | 0.10.0 → 0.11.0 | +act | f48980442cbd → afed8fb6c6ad |
| 2026-10-08 07:40:02Z | SURFACE_CHANGED | SILENT — version string did not move | 0.10.0 (unchanged) | +show_darwin_view | 1f12662462dd → f48980442cbd |
| 2026-10-05 19:40:04Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 0.10.0 (unchanged) | no tool-name change recorded | 62d9c4549d7e → 7083d3097309 |
| 2026-10-05 19:40:04Z | PARAMS_CHANGED | SILENT — version string did not move | 0.10.0 (unchanged) | no tool-name change recorded | cbafc1a12f4c → a18283ba1347 |
| 2026-10-04 07:40:03Z | SURFACE_CHANGED | version-signalled | 0.9.0 → 0.10.0 | +open_darwin | 5069df64ca7d → 1f12662462dd |
| 2026-10-01 13:40:04Z | PARAMS_CHANGED | SILENT — version string did not move | 0.9.0 (unchanged) | no tool-name change recorded | — |
| 2026-10-01 01:40:03Z | PARAMS_CHANGED | SILENT — version string did not move | 0.9.0 (unchanged) | no tool-name change recorded | — |
| 2026-09-30 01:40:03Z | SURFACE_CHANGED | version-signalled | 0.8.0 → 0.9.0 | +list_act_history +list_auth_credentials −list_connections | 31681259815d → 5069df64ca7d |
| 2026-09-29 19:40:03Z | SURFACE_CHANGED | version-signalled | 0.7.0 → 0.8.0 | +archive_thread +authenticate +get_thread +list_connections +list_payment_methods +list_threads +pay +send_message +start_thread −approve_action −authenticate_session −continue_action −end_action −get_action −get_capability −list_actions −pay_action −start_action | 63ab21f335ff → 31681259815d |
| 2026-09-27 19:40:02Z | SURFACE_CHANGED | SILENT — version string did not move | 0.7.0 (unchanged) | +get_capability | 62bcf7c2c1bd → 63ab21f335ff |
This section is identical for ~92% of publishers and is published as
shared context, not as a finding about mcp.darwin.so. 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.