An observation record, not an assessment. Every row below is a change we recorded directly, with the content hash before and after. https://api.temsor.com/mcp
4 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 | SURFACE_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | +tr_address_parse +tr_business_days +tr_iban_olustur +tr_invoice_build +tr_invoice_parse +tr_labor +tr_money_to_words +tr_posta_kodu +tr_qr_odeme +tr_tebligat_clock +tr_validate +tr_vat | 1e3a29d0086a → dc87af9196b2 |
| 2026-10-06 01:40:03Z | DESCRIPTION_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | no tool-name change recorded | 4ac39a9ac9bf → 26310adee94f |
| 2026-10-06 01:40:03Z | SURFACE_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | −tr_address_parse −tr_business_days −tr_iban_olustur −tr_invoice_build −tr_invoice_parse −tr_labor −tr_money_to_words −tr_posta_kodu −tr_qr_odeme −tr_tebligat_clock −tr_validate −tr_vat | dc87af9196b2 → 1e3a29d0086a |
| 2026-09-28 01:40:05Z | SURFACE_CHANGED | SILENT — version string did not move | 1.0.0 (unchanged) | −ai_messages −bic_validate −container_validate −creditor_ref −ean_gtin −eu_vat_rates −eu_vat_validate −id_mrz −isbn_validate −isin_validate −lei_lookup −lei_validate −mcp_index −model_archive −model_drift −pay_epc_qr −pbx_bridge_multi_agent −pbx_night_twin_last −pbx_night_twin_run −pbx_orchestra_act −pbx_orchestra_acts −pbx_synthetic_run −sanctions_screen −series_history −shipping_identify −tin_validate −tr_fuel_prices −uuid_validate −vin_validate | 203fa3aeb2cd → dc87af9196b2 |
This section is identical for ~92% of publishers and is published as
shared context, not as a finding about api.temsor.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.