MCP VerifyThe rating layer for AI agents

3lgrouptechnology.com/mcp

Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 24 of 24 observations since 4 October 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-061 to REL-SNAP-073, A from REL-SNAP-074 to REL-SNAP-084.

  • Reachable
  • Reachable, asked to sign in or pay
  • Not reachable
  • Not observed
Transport
streamable-http
Tools listed
7
Tool schema fingerprint
899d6e69ad3761e0…changed 1 time on the record
Name reported by the server
3l-group-technology-letter-mailself-reported, never used as identity
Registry names (not anchored)
com.3lgrouptechnology/3lt-letter-mailas the registry listed it; not covered by the chain
First and last observed
4 Oct 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 09:36REL-SNAP-084OK150 ms7899d6e69ad3761e0…
2026-10-26 09:36REL-SNAP-083OK110 ms7899d6e69ad3761e0…
2026-10-25 09:32REL-SNAP-082OK147 ms7899d6e69ad3761e0…
2026-10-24 09:31REL-SNAP-081OK112 ms7899d6e69ad3761e0…
2026-10-23 10:43REL-SNAP-080OK281 ms7899d6e69ad3761e0…
2026-10-22 10:18REL-SNAP-079OK111 ms7899d6e69ad3761e0…
2026-10-21 10:01REL-SNAP-078OK119 ms7899d6e69ad3761e0…
2026-10-20 10:30REL-SNAP-077OK133 ms3e67527404afda4f9…
Show all 24 observations
2026-10-19 10:42REL-SNAP-076OK133 ms3e67527404afda4f9…
2026-10-18 09:42REL-SNAP-075OK147 ms3e67527404afda4f9…
2026-10-17 09:41REL-SNAP-074OK111 ms3e67527404afda4f9…
2026-10-16 09:53REL-SNAP-073OK159 ms3e67527404afda4f9…
2026-10-15 09:57REL-SNAP-072OK136 ms3e67527404afda4f9…
2026-10-14 10:04REL-SNAP-071OK142 ms3e67527404afda4f9…
2026-10-13 10:06REL-SNAP-070OK110 ms3e67527404afda4f9…
2026-10-12 10:49REL-SNAP-069OK440 ms3e67527404afda4f9…
2026-10-11 09:41REL-SNAP-068OK257 ms3e67527404afda4f9…
2026-10-10 09:42REL-SNAP-067OK368 ms3e67527404afda4f9…
2026-10-09 09:47REL-SNAP-066OK155 ms3e67527404afda4f9…
2026-10-08 09:58REL-SNAP-065OK274 ms3e67527404afda4f9…
2026-10-07 10:10REL-SNAP-064OK107 ms3e67527404afda4f9…
2026-10-06 09:46REL-SNAP-063OK138 ms3e67527404afda4f9…
2026-10-05 10:36REL-SNAP-062OK109 ms3e67527404afda4f9…
2026-10-04 10:03REL-SNAP-061OK196 ms3e67527404afda4f9…

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 3lgrouptechnology.com/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 1 time on the record. Each change is dated in the observations below.