MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/reiwa-yr/mcp

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 40 of 40 observations since 18 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-045 to REL-SNAP-057, A from REL-SNAP-058 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
874e5190ad647396…changed 2 times on the record
Name reported by the server
Reiwa year from UTCself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/reiwa-yras the registry listed it; not covered by the chain
First and last observed
18 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 09:29REL-SNAP-084OK52 ms31874e5190ad647396…
2026-10-26 09:29REL-SNAP-083OK48 ms31874e5190ad647396…
2026-10-25 09:25REL-SNAP-082OK54 ms31874e5190ad647396…
2026-10-24 09:24REL-SNAP-081OK51 ms31874e5190ad647396…
2026-10-23 10:35REL-SNAP-080OK79 ms31874e5190ad647396…
2026-10-22 10:10REL-SNAP-079OK69 ms31874e5190ad647396…
2026-10-21 09:52REL-SNAP-078OK58 ms31874e5190ad647396…
2026-10-20 10:21REL-SNAP-077OK55 ms31874e5190ad647396…
Show all 40 observations
2026-10-19 10:31REL-SNAP-076OK55 ms31874e5190ad647396…
2026-10-18 09:33REL-SNAP-075OK55 ms31874e5190ad647396…
2026-10-17 09:31REL-SNAP-074OK79 ms31874e5190ad647396…
2026-10-16 09:43REL-SNAP-073OK54 ms31874e5190ad647396…
2026-10-15 09:47REL-SNAP-072OK48 ms31874e5190ad647396…
2026-10-14 09:54REL-SNAP-071OK46 ms31874e5190ad647396…
2026-10-13 09:55REL-SNAP-070OK48 ms31874e5190ad647396…
2026-10-12 10:37REL-SNAP-069OK93 ms31874e5190ad647396…
2026-10-11 09:29REL-SNAP-068OK44 ms31874e5190ad647396…
2026-10-10 09:31REL-SNAP-067OK43 ms31874e5190ad647396…
2026-10-09 09:33REL-SNAP-066OK55 ms31874e5190ad647396…
2026-10-08 09:45REL-SNAP-065OK50 ms31874e5190ad647396…
2026-10-07 09:56REL-SNAP-064OK60 ms31874e5190ad647396…
2026-10-06 09:31REL-SNAP-063OK60 ms31874e5190ad647396…
2026-10-05 10:19REL-SNAP-062OK41 ms31874e5190ad647396…
2026-10-04 09:46REL-SNAP-061OK51 ms31874e5190ad647396…
2026-10-03 09:39REL-SNAP-060OK48 ms31874e5190ad647396…
2026-10-02 09:36REL-SNAP-059OK51 ms31874e5190ad647396…
2026-10-01 09:40REL-SNAP-058OK54 ms31874e5190ad647396…
2026-09-30 10:05REL-SNAP-057OK49 ms31874e5190ad647396…
2026-09-29 10:01REL-SNAP-056OK56 ms31874e5190ad647396…
2026-09-28 10:13REL-SNAP-055OK48 ms31874e5190ad647396…
2026-09-27 09:59REL-SNAP-054OK46 ms31874e5190ad647396…
2026-09-26 09:46REL-SNAP-053OK52 ms31874e5190ad647396…
2026-09-25 10:09REL-SNAP-052OK46 ms31874e5190ad647396…
2026-09-24 10:13REL-SNAP-051OK73 ms31874e5190ad647396…
2026-09-23 10:18REL-SNAP-050OK46 ms312ec86b6bcd9ab73e…
2026-09-22 09:56REL-SNAP-049OK47 ms304c8114efaf09510e…
2026-09-21 09:40REL-SNAP-048OK49 ms304c8114efaf09510e…
2026-09-20 09:59REL-SNAP-047OK46 ms304c8114efaf09510e…
2026-09-19 09:43REL-SNAP-046OK49 ms304c8114efaf09510e…
2026-09-18 09:58REL-SNAP-045OK51 ms304c8114efaf09510e…

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/reiwa-yr/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.