agent-observatory-sensor.nolimit-observatory.workers.dev/s/arrow-magic/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.
A
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
- 68468553c2e9a743…changed 2 times on the record
- Name reported by the server
- Arrow IPC magic-byte check, file discardedself-reported, never used as identity
- Registry names (not anchored)
- io.github.sadri-dridi/arrow-magicas 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) | Snapshot | Recorded as | Latency | Tools | Tool schema |
|---|---|---|---|---|---|
| 2026-10-27 09:22 | REL-SNAP-084 | OK | 53 ms | 31 | 68468553c2e9a743… |
| 2026-10-26 09:22 | REL-SNAP-083 | OK | 56 ms | 31 | 68468553c2e9a743… |
| 2026-10-25 09:18 | REL-SNAP-082 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-10-24 09:17 | REL-SNAP-081 | OK | 54 ms | 31 | 68468553c2e9a743… |
| 2026-10-23 10:28 | REL-SNAP-080 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-10-22 10:04 | REL-SNAP-079 | OK | 43 ms | 31 | 68468553c2e9a743… |
| 2026-10-21 09:45 | REL-SNAP-078 | OK | 80 ms | 31 | 68468553c2e9a743… |
| 2026-10-20 10:14 | REL-SNAP-077 | OK | 60 ms | 31 | 68468553c2e9a743… |
Show all 48 observations
| 2026-10-19 10:25 | REL-SNAP-076 | OK | 57 ms | 31 | 68468553c2e9a743… |
| 2026-10-18 09:26 | REL-SNAP-075 | OK | 47 ms | 31 | 68468553c2e9a743… |
| 2026-10-17 09:25 | REL-SNAP-074 | OK | 46 ms | 31 | 68468553c2e9a743… |
| 2026-10-16 09:36 | REL-SNAP-073 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-10-15 09:41 | REL-SNAP-072 | OK | 52 ms | 31 | 68468553c2e9a743… |
| 2026-10-14 09:47 | REL-SNAP-071 | OK | 50 ms | 31 | 68468553c2e9a743… |
| 2026-10-13 09:49 | REL-SNAP-070 | OK | 46 ms | 31 | 68468553c2e9a743… |
| 2026-10-12 10:30 | REL-SNAP-069 | OK | 55 ms | 31 | 68468553c2e9a743… |
| 2026-10-11 09:23 | REL-SNAP-068 | OK | 41 ms | 31 | 68468553c2e9a743… |
| 2026-10-10 09:24 | REL-SNAP-067 | OK | 83 ms | 31 | 68468553c2e9a743… |
| 2026-10-09 09:27 | REL-SNAP-066 | OK | 44 ms | 31 | 68468553c2e9a743… |
| 2026-10-08 09:38 | REL-SNAP-065 | OK | 47 ms | 31 | 68468553c2e9a743… |
| 2026-10-07 09:49 | REL-SNAP-064 | OK | 59 ms | 31 | 68468553c2e9a743… |
| 2026-10-06 09:24 | REL-SNAP-063 | OK | 50 ms | 31 | 68468553c2e9a743… |
| 2026-10-05 10:13 | REL-SNAP-062 | OK | 51 ms | 31 | 68468553c2e9a743… |
| 2026-10-04 09:40 | REL-SNAP-061 | OK | 46 ms | 31 | 68468553c2e9a743… |
| 2026-10-03 09:33 | REL-SNAP-060 | OK | 46 ms | 31 | 68468553c2e9a743… |
| 2026-10-02 09:30 | REL-SNAP-059 | OK | 53 ms | 31 | 68468553c2e9a743… |
| 2026-10-01 09:34 | REL-SNAP-058 | OK | 51 ms | 31 | 68468553c2e9a743… |
| 2026-09-30 09:58 | REL-SNAP-057 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-09-29 09:54 | REL-SNAP-056 | OK | 52 ms | 31 | 68468553c2e9a743… |
| 2026-09-28 10:07 | REL-SNAP-055 | OK | 49 ms | 31 | 68468553c2e9a743… |
| 2026-09-27 09:52 | REL-SNAP-054 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-09-26 09:40 | REL-SNAP-053 | OK | 44 ms | 31 | 68468553c2e9a743… |
| 2026-09-25 10:03 | REL-SNAP-052 | OK | 55 ms | 31 | 68468553c2e9a743… |
| 2026-09-24 10:07 | REL-SNAP-051 | OK | 48 ms | 31 | 68468553c2e9a743… |
| 2026-09-23 10:11 | REL-SNAP-050 | OK | 56 ms | 31 | 99de65c228efbef4… |
| 2026-09-22 09:50 | REL-SNAP-049 | OK | 43 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-21 09:34 | REL-SNAP-048 | OK | 50 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-20 09:53 | REL-SNAP-047 | OK | 47 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-19 09:37 | REL-SNAP-046 | OK | 52 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-18 09:51 | REL-SNAP-045 | OK | 48 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-17 10:01 | REL-SNAP-044 | OK | 50 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-16 10:17 | REL-SNAP-043 | OK | 48 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-15 09:53 | REL-SNAP-042 | OK | 44 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-14 10:03 | REL-SNAP-041 | OK | 48 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-13 09:59 | REL-SNAP-040 | OK | 57 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-12 09:32 | REL-SNAP-039 | OK | 55 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-11 09:41 | REL-SNAP-038 | OK | 46 ms | 30 | 9129cc19a3fbbfb1… |
| 2026-09-10 09:41 | REL-SNAP-037 | OK | 53 ms | 30 | 9129cc19a3fbbfb1… |
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/arrow-magic/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.