MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/leap-day/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
1e768bf660d091c9…changed 2 times on the record
Name reported by the server
Whether current UTC year has Feb 29self-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/leap-dayas 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-084OK53 ms311e768bf660d091c9…
2026-10-26 09:29REL-SNAP-083OK86 ms311e768bf660d091c9…
2026-10-25 09:25REL-SNAP-082OK45 ms311e768bf660d091c9…
2026-10-24 09:23REL-SNAP-081OK53 ms311e768bf660d091c9…
2026-10-23 10:35REL-SNAP-080OK62 ms311e768bf660d091c9…
2026-10-22 10:10REL-SNAP-079OK38 ms311e768bf660d091c9…
2026-10-21 09:52REL-SNAP-078OK62 ms311e768bf660d091c9…
2026-10-20 10:20REL-SNAP-077OK45 ms311e768bf660d091c9…
Show all 40 observations
2026-10-19 10:31REL-SNAP-076OK46 ms311e768bf660d091c9…
2026-10-18 09:32REL-SNAP-075OK58 ms311e768bf660d091c9…
2026-10-17 09:31REL-SNAP-074OK46 ms311e768bf660d091c9…
2026-10-16 09:43REL-SNAP-073OK43 ms311e768bf660d091c9…
2026-10-15 09:47REL-SNAP-072OK51 ms311e768bf660d091c9…
2026-10-14 09:53REL-SNAP-071OK46 ms311e768bf660d091c9…
2026-10-13 09:55REL-SNAP-070OK45 ms311e768bf660d091c9…
2026-10-12 10:36REL-SNAP-069OK47 ms311e768bf660d091c9…
2026-10-11 09:29REL-SNAP-068OK41 ms311e768bf660d091c9…
2026-10-10 09:30REL-SNAP-067OK80 ms311e768bf660d091c9…
2026-10-09 09:33REL-SNAP-066OK46 ms311e768bf660d091c9…
2026-10-08 09:44REL-SNAP-065OK48 ms311e768bf660d091c9…
2026-10-07 09:56REL-SNAP-064OK103 ms311e768bf660d091c9…
2026-10-06 09:31REL-SNAP-063OK59 ms311e768bf660d091c9…
2026-10-05 10:19REL-SNAP-062OK41 ms311e768bf660d091c9…
2026-10-04 09:46REL-SNAP-061OK45 ms311e768bf660d091c9…
2026-10-03 09:39REL-SNAP-060OK54 ms311e768bf660d091c9…
2026-10-02 09:36REL-SNAP-059OK53 ms311e768bf660d091c9…
2026-10-01 09:40REL-SNAP-058OK60 ms311e768bf660d091c9…
2026-09-30 10:05REL-SNAP-057OK49 ms311e768bf660d091c9…
2026-09-29 10:00REL-SNAP-056OK45 ms311e768bf660d091c9…
2026-09-28 10:13REL-SNAP-055OK46 ms311e768bf660d091c9…
2026-09-27 09:59REL-SNAP-054OK56 ms311e768bf660d091c9…
2026-09-26 09:46REL-SNAP-053OK57 ms311e768bf660d091c9…
2026-09-25 10:09REL-SNAP-052OK47 ms311e768bf660d091c9…
2026-09-24 10:13REL-SNAP-051OK84 ms311e768bf660d091c9…
2026-09-23 10:17REL-SNAP-050OK55 ms31fa80d198e674c396…
2026-09-22 09:56REL-SNAP-049OK44 ms3095beab3babd73d4a…
2026-09-21 09:40REL-SNAP-048OK53 ms3095beab3babd73d4a…
2026-09-20 09:59REL-SNAP-047OK48 ms3095beab3babd73d4a…
2026-09-19 09:43REL-SNAP-046OK49 ms3095beab3babd73d4a…
2026-09-18 09:57REL-SNAP-045OK48 ms3095beab3babd73d4a…

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/leap-day/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.