MCP VerifyThe rating layer for AI agents

agent-observatory-sensor.nolimit-observatory.workers.dev/s/email-host/mcp

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 49 of 49 observations since 9 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-048, A from REL-SNAP-049 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
25448ae8e66b09d1…changed 3 times on the record
Name reported by the server
Email hostname only, address discardedself-reported, never used as identity
Registry names (not anchored)
io.github.sadri-dridi/email-hostas the registry listed it; not covered by the chain
First and last observed
9 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 09:14REL-SNAP-084OK54 ms3125448ae8e66b09d1…
2026-10-26 09:14REL-SNAP-083OK58 ms3125448ae8e66b09d1…
2026-10-25 09:11REL-SNAP-082OK43 ms3125448ae8e66b09d1…
2026-10-24 09:11REL-SNAP-081OK59 ms3125448ae8e66b09d1…
2026-10-23 10:21REL-SNAP-080OK47 ms3125448ae8e66b09d1…
2026-10-22 09:58REL-SNAP-079OK49 ms3125448ae8e66b09d1…
2026-10-21 09:38REL-SNAP-078OK80 ms3125448ae8e66b09d1…
2026-10-20 10:06REL-SNAP-077OK68 ms3125448ae8e66b09d1…
Show all 49 observations
2026-10-19 10:18REL-SNAP-076OK141 ms3125448ae8e66b09d1…
2026-10-18 09:20REL-SNAP-075OK66 ms3125448ae8e66b09d1…
2026-10-17 09:19REL-SNAP-074OK54 ms3125448ae8e66b09d1…
2026-10-16 09:30REL-SNAP-073OK51 ms3125448ae8e66b09d1…
2026-10-15 09:34REL-SNAP-072OK52 ms3125448ae8e66b09d1…
2026-10-14 09:41REL-SNAP-071OK52 ms3125448ae8e66b09d1…
2026-10-13 09:43REL-SNAP-070OK52 ms3125448ae8e66b09d1…
2026-10-12 10:24REL-SNAP-069OK49 ms3125448ae8e66b09d1…
2026-10-11 09:17REL-SNAP-068OK51 ms3125448ae8e66b09d1…
2026-10-10 09:18REL-SNAP-067OK51 ms3125448ae8e66b09d1…
2026-10-09 09:21REL-SNAP-066OK45 ms3125448ae8e66b09d1…
2026-10-08 09:32REL-SNAP-065OK46 ms3125448ae8e66b09d1…
2026-10-07 09:43REL-SNAP-064OK45 ms3125448ae8e66b09d1…
2026-10-06 09:18REL-SNAP-063OK56 ms3125448ae8e66b09d1…
2026-10-05 10:07REL-SNAP-062OK81 ms3125448ae8e66b09d1…
2026-10-04 09:34REL-SNAP-061OK43 ms3125448ae8e66b09d1…
2026-10-03 09:27REL-SNAP-060OK78 ms3125448ae8e66b09d1…
2026-10-02 09:24REL-SNAP-059OK46 ms3125448ae8e66b09d1…
2026-10-01 09:28REL-SNAP-058OK85 ms3125448ae8e66b09d1…
2026-09-30 09:52REL-SNAP-057OK56 ms3125448ae8e66b09d1…
2026-09-29 09:48REL-SNAP-056OK49 ms3125448ae8e66b09d1…
2026-09-28 10:01REL-SNAP-055OK62 ms3125448ae8e66b09d1…
2026-09-27 09:46REL-SNAP-054OK51 ms3125448ae8e66b09d1…
2026-09-26 09:34REL-SNAP-053OK50 ms3125448ae8e66b09d1…
2026-09-25 09:57REL-SNAP-052OK50 ms3125448ae8e66b09d1…
2026-09-24 10:00REL-SNAP-051OK67 ms3125448ae8e66b09d1…
2026-09-23 10:05REL-SNAP-050OK55 ms31c89356fe2fd1d23b…
2026-09-22 09:44REL-SNAP-049OK56 ms3049b59ed00d666109…
2026-09-21 09:28REL-SNAP-048OK50 ms3049b59ed00d666109…
2026-09-20 09:47REL-SNAP-047OK81 ms3049b59ed00d666109…
2026-09-19 09:31REL-SNAP-046OK46 ms3049b59ed00d666109…
2026-09-18 09:46REL-SNAP-045OK50 ms3049b59ed00d666109…
2026-09-17 09:56REL-SNAP-044OK61 ms3049b59ed00d666109…
2026-09-16 10:11REL-SNAP-043OK45 ms3049b59ed00d666109…
2026-09-15 09:47REL-SNAP-042OK46 ms3049b59ed00d666109…
2026-09-14 09:57REL-SNAP-041OK45 ms3049b59ed00d666109…
2026-09-13 09:53REL-SNAP-040OK76 ms3049b59ed00d666109…
2026-09-12 09:26REL-SNAP-039OK45 ms3049b59ed00d666109…
2026-09-11 09:35REL-SNAP-038OK49 ms3049b59ed00d666109…
2026-09-10 09:35REL-SNAP-037OK58 ms3049b59ed00d666109…
2026-09-09 09:42REL-SNAP-036OK82 ms298d04e616d4c62f9f…

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/email-host/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 3 times on the record. Each change is dated in the observations below.