MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/fathom-m/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
702efdc8fcea7774…changed 2 times on the record
Name reported by the server
Fathoms to meters, number discardedself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/fathom-mas 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 09:27REL-SNAP-084OK66 ms31702efdc8fcea7774…
2026-10-26 09:28REL-SNAP-083OK67 ms31702efdc8fcea7774…
2026-10-25 09:23REL-SNAP-082OK51 ms31702efdc8fcea7774…
2026-10-24 09:22REL-SNAP-081OK47 ms31702efdc8fcea7774…
2026-10-23 10:33REL-SNAP-080OK57 ms31702efdc8fcea7774…
2026-10-22 10:09REL-SNAP-079OK36 ms31702efdc8fcea7774…
2026-10-21 09:50REL-SNAP-078OK74 ms31702efdc8fcea7774…
2026-10-20 10:19REL-SNAP-077OK47 ms31702efdc8fcea7774…
Show all 46 observations
2026-10-19 10:30REL-SNAP-076OK47 ms31702efdc8fcea7774…
2026-10-18 09:31REL-SNAP-075OK46 ms31702efdc8fcea7774…
2026-10-17 09:30REL-SNAP-074OK88 ms31702efdc8fcea7774…
2026-10-16 09:41REL-SNAP-073OK43 ms31702efdc8fcea7774…
2026-10-15 09:46REL-SNAP-072OK54 ms31702efdc8fcea7774…
2026-10-14 09:52REL-SNAP-071OK51 ms31702efdc8fcea7774…
2026-10-13 09:54REL-SNAP-070OK46 ms31702efdc8fcea7774…
2026-10-12 10:35REL-SNAP-069OK43 ms31702efdc8fcea7774…
2026-10-11 09:28REL-SNAP-068OK49 ms31702efdc8fcea7774…
2026-10-10 09:29REL-SNAP-067OK47 ms31702efdc8fcea7774…
2026-10-09 09:32REL-SNAP-066OK49 ms31702efdc8fcea7774…
2026-10-08 09:43REL-SNAP-065OK49 ms31702efdc8fcea7774…
2026-10-07 09:55REL-SNAP-064OK48 ms31702efdc8fcea7774…
2026-10-06 09:29REL-SNAP-063OK47 ms31702efdc8fcea7774…
2026-10-05 10:18REL-SNAP-062OK74 ms31702efdc8fcea7774…
2026-10-04 09:45REL-SNAP-061OK81 ms31702efdc8fcea7774…
2026-10-03 09:38REL-SNAP-060OK43 ms31702efdc8fcea7774…
2026-10-02 09:35REL-SNAP-059OK52 ms31702efdc8fcea7774…
2026-10-01 09:39REL-SNAP-058OK46 ms31702efdc8fcea7774…
2026-09-30 10:03REL-SNAP-057OK54 ms31702efdc8fcea7774…
2026-09-29 09:59REL-SNAP-056OK46 ms31702efdc8fcea7774…
2026-09-28 10:12REL-SNAP-055OK92 ms31702efdc8fcea7774…
2026-09-27 09:57REL-SNAP-054OK43 ms31702efdc8fcea7774…
2026-09-26 09:45REL-SNAP-053OK47 ms31702efdc8fcea7774…
2026-09-25 10:08REL-SNAP-052OK55 ms31702efdc8fcea7774…
2026-09-24 10:12REL-SNAP-051OK49 ms31702efdc8fcea7774…
2026-09-23 10:16REL-SNAP-050OK46 ms31d3fd19506fc67d9d…
2026-09-22 09:55REL-SNAP-049OK58 ms30f287837f92989fa4…
2026-09-21 09:39REL-SNAP-048OK54 ms30f287837f92989fa4…
2026-09-20 09:58REL-SNAP-047OK86 ms30f287837f92989fa4…
2026-09-19 09:42REL-SNAP-046OK79 ms30f287837f92989fa4…
2026-09-18 09:56REL-SNAP-045OK56 ms30f287837f92989fa4…
2026-09-17 10:06REL-SNAP-044OK42 ms30f287837f92989fa4…
2026-09-16 10:22REL-SNAP-043OK46 ms30f287837f92989fa4…
2026-09-15 09:57REL-SNAP-042OK50 ms30f287837f92989fa4…
2026-09-14 10:08REL-SNAP-041OK50 ms30f287837f92989fa4…
2026-09-13 10:04REL-SNAP-040OK46 ms30f287837f92989fa4…
2026-09-12 09:37REL-SNAP-039OK84 ms30f287837f92989fa4…

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/fathom-m/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.