MCP VerifyThe rating layer for AI agents

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

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 48 of 48 observations since 10 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-037 to REL-SNAP-049, A from REL-SNAP-050 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
dfb8cb099b29f642…changed 2 times on the record
Name reported by the server
WCAG AA contrast for two hex colorsself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/wcag-aa-okas the registry listed it; not covered by the chain
First and last observed
10 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 09:20REL-SNAP-084OK47 ms31dfb8cb099b29f642…
2026-10-26 09:20REL-SNAP-083OK48 ms31dfb8cb099b29f642…
2026-10-25 09:17REL-SNAP-082OK83 ms31dfb8cb099b29f642…
2026-10-24 09:16REL-SNAP-081OK51 ms31dfb8cb099b29f642…
2026-10-23 10:27REL-SNAP-080OK54 ms31dfb8cb099b29f642…
2026-10-22 10:03REL-SNAP-079OK55 ms31dfb8cb099b29f642…
2026-10-21 09:44REL-SNAP-078OK55 ms31dfb8cb099b29f642…
2026-10-20 10:13REL-SNAP-077OK47 ms31dfb8cb099b29f642…
Show all 48 observations
2026-10-19 10:23REL-SNAP-076OK46 ms31dfb8cb099b29f642…
2026-10-18 09:25REL-SNAP-075OK52 ms31dfb8cb099b29f642…
2026-10-17 09:24REL-SNAP-074OK53 ms31dfb8cb099b29f642…
2026-10-16 09:35REL-SNAP-073OK45 ms31dfb8cb099b29f642…
2026-10-15 09:39REL-SNAP-072OK46 ms31dfb8cb099b29f642…
2026-10-14 09:46REL-SNAP-071OK49 ms31dfb8cb099b29f642…
2026-10-13 09:48REL-SNAP-070OK57 ms31dfb8cb099b29f642…
2026-10-12 10:29REL-SNAP-069OK48 ms31dfb8cb099b29f642…
2026-10-11 09:22REL-SNAP-068OK45 ms31dfb8cb099b29f642…
2026-10-10 09:23REL-SNAP-067OK43 ms31dfb8cb099b29f642…
2026-10-09 09:26REL-SNAP-066OK44 ms31dfb8cb099b29f642…
2026-10-08 09:37REL-SNAP-065OK51 ms31dfb8cb099b29f642…
2026-10-07 09:48REL-SNAP-064OK48 ms31dfb8cb099b29f642…
2026-10-06 09:23REL-SNAP-063OK47 ms31dfb8cb099b29f642…
2026-10-05 10:12REL-SNAP-062OK42 ms31dfb8cb099b29f642…
2026-10-04 09:39REL-SNAP-061OK42 ms31dfb8cb099b29f642…
2026-10-03 09:32REL-SNAP-060OK48 ms31dfb8cb099b29f642…
2026-10-02 09:29REL-SNAP-059OK48 ms31dfb8cb099b29f642…
2026-10-01 09:33REL-SNAP-058OK43 ms31dfb8cb099b29f642…
2026-09-30 09:57REL-SNAP-057OK44 ms31dfb8cb099b29f642…
2026-09-29 09:53REL-SNAP-056OK61 ms31dfb8cb099b29f642…
2026-09-28 10:06REL-SNAP-055OK56 ms31dfb8cb099b29f642…
2026-09-27 09:51REL-SNAP-054OK44 ms31dfb8cb099b29f642…
2026-09-26 09:39REL-SNAP-053OK54 ms31dfb8cb099b29f642…
2026-09-25 10:02REL-SNAP-052OK48 ms31dfb8cb099b29f642…
2026-09-24 10:06REL-SNAP-051OK61 ms31dfb8cb099b29f642…
2026-09-23 10:10REL-SNAP-050OK59 ms31456d7efa6e329b21…
2026-09-22 09:49REL-SNAP-049OK52 ms302b601dd61a62ad3d…
2026-09-21 09:33REL-SNAP-048OK53 ms302b601dd61a62ad3d…
2026-09-20 09:52REL-SNAP-047OK49 ms302b601dd61a62ad3d…
2026-09-19 09:36REL-SNAP-046OK47 ms302b601dd61a62ad3d…
2026-09-18 09:50REL-SNAP-045OK47 ms302b601dd61a62ad3d…
2026-09-17 10:00REL-SNAP-044OK45 ms302b601dd61a62ad3d…
2026-09-16 10:16REL-SNAP-043OK46 ms302b601dd61a62ad3d…
2026-09-15 09:52REL-SNAP-042OK40 ms302b601dd61a62ad3d…
2026-09-14 10:02REL-SNAP-041OK53 ms302b601dd61a62ad3d…
2026-09-13 09:58REL-SNAP-040OK52 ms302b601dd61a62ad3d…
2026-09-12 09:31REL-SNAP-039OK56 ms302b601dd61a62ad3d…
2026-09-11 09:40REL-SNAP-038OK46 ms302b601dd61a62ad3d…
2026-09-10 09:40REL-SNAP-037OK48 ms302b601dd61a62ad3d…

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/wcag-aa-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.