MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/maildir-ok/mcp

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 46 of 46 observations since 12 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-039 to REL-SNAP-051, A from REL-SNAP-052 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
8b1804e55738811b…changed 2 times on the record
Name reported by the server
maildir info-flag charset, value discardedself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/maildir-okas the registry listed it; not covered by the chain
First and last observed
12 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 09:26REL-SNAP-084OK62 ms318b1804e55738811b…
2026-10-26 09:27REL-SNAP-083OK192 ms318b1804e55738811b…
2026-10-25 09:22REL-SNAP-082OK49 ms318b1804e55738811b…
2026-10-24 09:21REL-SNAP-081OK63 ms318b1804e55738811b…
2026-10-23 10:32REL-SNAP-080OK79 ms318b1804e55738811b…
2026-10-22 10:08REL-SNAP-079OK33 ms318b1804e55738811b…
2026-10-21 09:49REL-SNAP-078OK84 ms318b1804e55738811b…
2026-10-20 10:18REL-SNAP-077OK52 ms318b1804e55738811b…
Show all 46 observations
2026-10-19 10:29REL-SNAP-076OK46 ms318b1804e55738811b…
2026-10-18 09:30REL-SNAP-075OK54 ms318b1804e55738811b…
2026-10-17 09:29REL-SNAP-074OK66 ms318b1804e55738811b…
2026-10-16 09:40REL-SNAP-073OK116 ms318b1804e55738811b…
2026-10-15 09:45REL-SNAP-072OK46 ms318b1804e55738811b…
2026-10-14 09:51REL-SNAP-071OK187 ms318b1804e55738811b…
2026-10-13 09:53REL-SNAP-070OK46 ms318b1804e55738811b…
2026-10-12 10:34REL-SNAP-069OK46 ms318b1804e55738811b…
2026-10-11 09:27REL-SNAP-068OK45 ms318b1804e55738811b…
2026-10-10 09:28REL-SNAP-067OK70 ms318b1804e55738811b…
2026-10-09 09:31REL-SNAP-066OK46 ms318b1804e55738811b…
2026-10-08 09:42REL-SNAP-065OK55 ms318b1804e55738811b…
2026-10-07 09:53REL-SNAP-064OK48 ms318b1804e55738811b…
2026-10-06 09:28REL-SNAP-063OK51 ms318b1804e55738811b…
2026-10-05 10:17REL-SNAP-062OK54 ms318b1804e55738811b…
2026-10-04 09:44REL-SNAP-061OK51 ms318b1804e55738811b…
2026-10-03 09:37REL-SNAP-060OK47 ms318b1804e55738811b…
2026-10-02 09:34REL-SNAP-059OK58 ms318b1804e55738811b…
2026-10-01 09:38REL-SNAP-058OK57 ms318b1804e55738811b…
2026-09-30 10:02REL-SNAP-057OK47 ms318b1804e55738811b…
2026-09-29 09:58REL-SNAP-056OK88 ms318b1804e55738811b…
2026-09-28 10:11REL-SNAP-055OK47 ms318b1804e55738811b…
2026-09-27 09:57REL-SNAP-054OK40 ms318b1804e55738811b…
2026-09-26 09:44REL-SNAP-053OK44 ms318b1804e55738811b…
2026-09-25 10:07REL-SNAP-052OK393 ms318b1804e55738811b…
2026-09-24 10:11REL-SNAP-051OK51 ms318b1804e55738811b…
2026-09-23 10:15REL-SNAP-050OK45 ms31052b3d0e61c38ffb…
2026-09-22 09:54REL-SNAP-049OK49 ms30162233e6f7b35ba9…
2026-09-21 09:38REL-SNAP-048OK55 ms30162233e6f7b35ba9…
2026-09-20 09:57REL-SNAP-047OK44 ms30162233e6f7b35ba9…
2026-09-19 09:41REL-SNAP-046OK42 ms30162233e6f7b35ba9…
2026-09-18 09:55REL-SNAP-045OK52 ms30162233e6f7b35ba9…
2026-09-17 10:05REL-SNAP-044OK41 ms30162233e6f7b35ba9…
2026-09-16 10:21REL-SNAP-043OK46 ms30162233e6f7b35ba9…
2026-09-15 09:57REL-SNAP-042OK51 ms30162233e6f7b35ba9…
2026-09-14 10:07REL-SNAP-041OK46 ms30162233e6f7b35ba9…
2026-09-13 10:03REL-SNAP-040OK52 ms30162233e6f7b35ba9…
2026-09-12 09:36REL-SNAP-039OK50 ms30162233e6f7b35ba9…

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/maildir-ok/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.