agent-observatory-sensor.nolimit-observatory.workers.dev/s/upc-check/mcp
Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 39 of 39 observations since 19 September 2026.
A
Sealed grades: UNGRADED from REL-SNAP-046 to REL-SNAP-058, A from REL-SNAP-059 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
- bbd9d13bbb0d3883…changed 2 times on the record
- Name reported by the server
- UPC-A check-digit shape, value discardedself-reported, never used as identity
- Registry names (not anchored)
- io.github.sadri-dridi/upc-checkas the registry listed it; not covered by the chain
- First and last observed
- 19 Sep 2026 to 27 Oct 2026
Observations
Newest first. Each row is a separate look, not a summary.
| Observed (UTC) | Snapshot | Recorded as | Latency | Tools | Tool schema |
|---|---|---|---|---|---|
| 2026-10-27 09:30 | REL-SNAP-084 | OK | 57 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-26 09:30 | REL-SNAP-083 | OK | 56 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-25 09:25 | REL-SNAP-082 | OK | 43 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-24 09:24 | REL-SNAP-081 | OK | 47 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-23 10:35 | REL-SNAP-080 | OK | 59 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-22 10:11 | REL-SNAP-079 | OK | 35 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-21 09:52 | REL-SNAP-078 | OK | 45 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-20 10:21 | REL-SNAP-077 | OK | 53 ms | 31 | bbd9d13bbb0d3883… |
Show all 39 observations
| 2026-10-19 10:32 | REL-SNAP-076 | OK | 48 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-18 09:33 | REL-SNAP-075 | OK | 81 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-17 09:31 | REL-SNAP-074 | OK | 60 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-16 09:43 | REL-SNAP-073 | OK | 47 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-15 09:48 | REL-SNAP-072 | OK | 116 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-14 09:54 | REL-SNAP-071 | OK | 55 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-13 09:55 | REL-SNAP-070 | OK | 49 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-12 10:37 | REL-SNAP-069 | OK | 44 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-11 09:29 | REL-SNAP-068 | OK | 52 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-10 09:31 | REL-SNAP-067 | OK | 78 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-09 09:34 | REL-SNAP-066 | OK | 49 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-08 09:45 | REL-SNAP-065 | OK | 84 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-07 09:56 | REL-SNAP-064 | OK | 49 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-06 09:31 | REL-SNAP-063 | OK | 59 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-05 10:20 | REL-SNAP-062 | OK | 51 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-04 09:46 | REL-SNAP-061 | OK | 50 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-03 09:40 | REL-SNAP-060 | OK | 45 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-02 09:37 | REL-SNAP-059 | OK | 44 ms | 31 | bbd9d13bbb0d3883… |
| 2026-10-01 09:41 | REL-SNAP-058 | OK | 43 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-30 10:05 | REL-SNAP-057 | OK | 62 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-29 10:01 | REL-SNAP-056 | OK | 55 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-28 10:13 | REL-SNAP-055 | OK | 45 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-27 09:59 | REL-SNAP-054 | OK | 52 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-26 09:47 | REL-SNAP-053 | OK | 44 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-25 10:10 | REL-SNAP-052 | OK | 54 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-24 10:13 | REL-SNAP-051 | OK | 57 ms | 31 | bbd9d13bbb0d3883… |
| 2026-09-23 10:18 | REL-SNAP-050 | OK | 55 ms | 31 | ea2b1338ab8c1b85… |
| 2026-09-22 09:57 | REL-SNAP-049 | OK | 49 ms | 30 | 2765d2b8da8bfd45… |
| 2026-09-21 09:41 | REL-SNAP-048 | OK | 64 ms | 30 | 2765d2b8da8bfd45… |
| 2026-09-20 09:59 | REL-SNAP-047 | OK | 46 ms | 30 | 2765d2b8da8bfd45… |
| 2026-09-19 09:44 | REL-SNAP-046 | OK | 54 ms | 30 | 2765d2b8da8bfd45… |
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
- Is agent-observatory-sensor.nolimit-observatory.workers.dev/s/upc-check/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.