agent-playground.projectmercury37.workers.dev/mcp
Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 30 of 30 observations since 28 September 2026.
A
Sealed grades: UNGRADED from REL-SNAP-055 to REL-SNAP-067, A from REL-SNAP-068 to REL-SNAP-084.
- Reachable
- Reachable, asked to sign in or pay
- Not reachable
- Not observed
- Transport
- streamable-http
- Tools listed
- 5
- Tool schema fingerprint
- 4156297d54f07915…unchanged since first observed
- Name reported by the server
- mercury-gardenself-reported, never used as identity
- Registry names (not anchored)
- io.github.projectmercury37/mercury-gardenas the registry listed it; not covered by the chain
- First and last observed
- 28 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 09:28 | REL-SNAP-084 | OK | 273 ms | 5 | 4156297d54f07915… |
| 2026-10-26 09:27 | REL-SNAP-083 | OK | 284 ms | 5 | 4156297d54f07915… |
| 2026-10-25 09:25 | REL-SNAP-082 | OK | 352 ms | 5 | 4156297d54f07915… |
| 2026-10-24 09:24 | REL-SNAP-081 | OK | 245 ms | 5 | 4156297d54f07915… |
| 2026-10-23 10:36 | REL-SNAP-080 | OK | 320 ms | 5 | 4156297d54f07915… |
| 2026-10-22 10:11 | REL-SNAP-079 | OK | 130 ms | 5 | 4156297d54f07915… |
| 2026-10-21 09:53 | REL-SNAP-078 | OK | 139 ms | 5 | 4156297d54f07915… |
| 2026-10-20 10:22 | REL-SNAP-077 | OK | 302 ms | 5 | 4156297d54f07915… |
Show all 30 observations
| 2026-10-19 10:33 | REL-SNAP-076 | OK | 251 ms | 5 | 4156297d54f07915… |
| 2026-10-18 09:34 | REL-SNAP-075 | OK | 224 ms | 5 | 4156297d54f07915… |
| 2026-10-17 09:32 | REL-SNAP-074 | OK | 119 ms | 5 | 4156297d54f07915… |
| 2026-10-16 09:45 | REL-SNAP-073 | OK | 98 ms | 5 | 4156297d54f07915… |
| 2026-10-15 09:48 | REL-SNAP-072 | OK | 181 ms | 5 | 4156297d54f07915… |
| 2026-10-14 09:56 | REL-SNAP-071 | OK | 300 ms | 5 | 4156297d54f07915… |
| 2026-10-13 09:57 | REL-SNAP-070 | OK | 200 ms | 5 | 4156297d54f07915… |
| 2026-10-12 10:39 | REL-SNAP-069 | OK | 366 ms | 5 | 4156297d54f07915… |
| 2026-10-11 09:33 | REL-SNAP-068 | OK | 311 ms | 5 | 4156297d54f07915… |
| 2026-10-10 09:33 | REL-SNAP-067 | OK | 86 ms | 5 | 4156297d54f07915… |
| 2026-10-09 09:37 | REL-SNAP-066 | OK | 93 ms | 5 | 4156297d54f07915… |
| 2026-10-08 09:48 | REL-SNAP-065 | OK | 189 ms | 5 | 4156297d54f07915… |
| 2026-10-07 09:59 | REL-SNAP-064 | OK | 193 ms | 5 | 4156297d54f07915… |
| 2026-10-06 09:34 | REL-SNAP-063 | OK | 190 ms | 5 | 4156297d54f07915… |
| 2026-10-05 10:24 | REL-SNAP-062 | OK | 276 ms | 5 | 4156297d54f07915… |
| 2026-10-04 09:51 | REL-SNAP-061 | OK | 213 ms | 5 | 4156297d54f07915… |
| 2026-10-03 09:45 | REL-SNAP-060 | OK | 231 ms | 5 | 4156297d54f07915… |
| 2026-10-02 09:41 | REL-SNAP-059 | OK | 227 ms | 5 | 4156297d54f07915… |
| 2026-10-01 09:46 | REL-SNAP-058 | OK | 184 ms | 5 | 4156297d54f07915… |
| 2026-09-30 10:11 | REL-SNAP-057 | OK | 296 ms | 5 | 4156297d54f07915… |
| 2026-09-29 10:07 | REL-SNAP-056 | OK | 192 ms | 5 | 4156297d54f07915… |
| 2026-09-28 10:21 | REL-SNAP-055 | OK | 105 ms | 5 | 4156297d54f07915… |
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-playground.projectmercury37.workers.dev/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?
- No. It listed the same tools, with the same schema fingerprint, in every observation since 28 Sep 2026.