MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/city32/mcp

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 41 of 41 observations since 17 September 2026.

The record behind itOne mark per snapshot, and every grade sealed along the way.

grade/v1
sealed in REL-SNAP-084

Sealed grades: UNGRADED from REL-SNAP-044 to REL-SNAP-056, A from REL-SNAP-057 to REL-SNAP-084.

  • Reachable
  • Reachable, asked to sign in or pay
  • Not reachable
  • Not observed
Transport
streamable-http
Tools listed
31
Tool schema fingerprint
2cd1c8abba6dd18c…changed 2 times on the record
Name reported by the server
CityHash32 hex length, input discardedself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/city32as the registry listed it; not covered by the chain
First and last observed
17 Sep 2026 to 27 Oct 2026

Observations

Newest first. Each row is a separate look, not a summary.

Observed (UTC)SnapshotRecorded asLatencyToolsTool schema
2026-10-27 09:28REL-SNAP-084OK85 ms312cd1c8abba6dd18c…
2026-10-26 09:28REL-SNAP-083OK76 ms312cd1c8abba6dd18c…
2026-10-25 09:24REL-SNAP-082OK47 ms312cd1c8abba6dd18c…
2026-10-24 09:22REL-SNAP-081OK46 ms312cd1c8abba6dd18c…
2026-10-23 10:34REL-SNAP-080OK57 ms312cd1c8abba6dd18c…
2026-10-22 10:09REL-SNAP-079OK43 ms312cd1c8abba6dd18c…
2026-10-21 09:50REL-SNAP-078OK57 ms312cd1c8abba6dd18c…
2026-10-20 10:19REL-SNAP-077OK46 ms312cd1c8abba6dd18c…
Show all 41 observations
2026-10-19 10:30REL-SNAP-076OK48 ms312cd1c8abba6dd18c…
2026-10-18 09:31REL-SNAP-075OK58 ms312cd1c8abba6dd18c…
2026-10-17 09:30REL-SNAP-074OK55 ms312cd1c8abba6dd18c…
2026-10-16 09:42REL-SNAP-073OK50 ms312cd1c8abba6dd18c…
2026-10-15 09:46REL-SNAP-072OK49 ms312cd1c8abba6dd18c…
2026-10-14 09:52REL-SNAP-071OK60 ms312cd1c8abba6dd18c…
2026-10-13 09:54REL-SNAP-070OK47 ms312cd1c8abba6dd18c…
2026-10-12 10:35REL-SNAP-069OK53 ms312cd1c8abba6dd18c…
2026-10-11 09:28REL-SNAP-068OK44 ms312cd1c8abba6dd18c…
2026-10-10 09:29REL-SNAP-067OK44 ms312cd1c8abba6dd18c…
2026-10-09 09:32REL-SNAP-066OK44 ms312cd1c8abba6dd18c…
2026-10-08 09:43REL-SNAP-065OK46 ms312cd1c8abba6dd18c…
2026-10-07 09:55REL-SNAP-064OK46 ms312cd1c8abba6dd18c…
2026-10-06 09:29REL-SNAP-063OK50 ms312cd1c8abba6dd18c…
2026-10-05 10:18REL-SNAP-062OK78 ms312cd1c8abba6dd18c…
2026-10-04 09:45REL-SNAP-061OK50 ms312cd1c8abba6dd18c…
2026-10-03 09:38REL-SNAP-060OK43 ms312cd1c8abba6dd18c…
2026-10-02 09:35REL-SNAP-059OK55 ms312cd1c8abba6dd18c…
2026-10-01 09:39REL-SNAP-058OK45 ms312cd1c8abba6dd18c…
2026-09-30 10:04REL-SNAP-057OK49 ms312cd1c8abba6dd18c…
2026-09-29 09:59REL-SNAP-056OK59 ms312cd1c8abba6dd18c…
2026-09-28 10:12REL-SNAP-055OK49 ms312cd1c8abba6dd18c…
2026-09-27 09:58REL-SNAP-054OK54 ms312cd1c8abba6dd18c…
2026-09-26 09:45REL-SNAP-053OK78 ms312cd1c8abba6dd18c…
2026-09-25 10:08REL-SNAP-052OK96 ms312cd1c8abba6dd18c…
2026-09-24 10:12REL-SNAP-051OK47 ms312cd1c8abba6dd18c…
2026-09-23 10:16REL-SNAP-050OK49 ms318d34541b23379804…
2026-09-22 09:55REL-SNAP-049OK54 ms30f6b0e688b95bea05…
2026-09-21 09:39REL-SNAP-048OK54 ms30f6b0e688b95bea05…
2026-09-20 09:58REL-SNAP-047OK49 ms30f6b0e688b95bea05…
2026-09-19 09:42REL-SNAP-046OK44 ms30f6b0e688b95bea05…
2026-09-18 09:56REL-SNAP-045OK47 ms30f6b0e688b95bea05…
2026-09-17 10:06REL-SNAP-044OK45 ms30f6b0e688b95bea05…

Checking this record

Each observation above is a leaf of the merkle root published with its snapshot. A proof shows a record is in the archive. It does not show the measurement is correct.

Latest root, REL-SNAP-084

ed182ac44848117a98c9536eabbd63d33a756c4db072812094c742e3fa1fdef6

Published at

gist.github.com/181cc5f4834e0a4f812acde9a5efdb95

Is agent-observatory-sensor.nolimit-observatory.workers.dev/s/city32/mcp reliable?
Its sealed grade is A (grade/v1, sealed in REL-SNAP-084). Grades run from A to F by how consistently an endpoint was recorded reachable. A grade describes the record; it is not a guarantee.
When was it last checked?
27 October 2026, in snapshot REL-SNAP-084, where it was recorded as OK.
Has its tool list changed?
Yes. Its tool schema fingerprint changed 2 times on the record. Each change is dated in the observations below.