addevent.usefulapi.io/mcp
Graded F by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 0 of 16 observations since 12 October 2026.
F
Sealed grades: UNGRADED from REL-SNAP-069 to REL-SNAP-081, F from REL-SNAP-082 to REL-SNAP-084.
- Reachable
- Reachable, asked to sign in or pay
- Not reachable
- Not observed
- Transport
- streamable-http
- Tools listed
- none
- Tool schema fingerprint
- none
- Name reported by the server
- Not reported.self-reported, never used as identity
- Registry names (not anchored)
- io.usefulapi/addeventas the registry listed it; not covered by the chain
- First and last observed
- 12 Oct 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 10:18 | REL-SNAP-084 | PROTOCOL_ERROR | none | none | none |
| 2026-10-26 10:19 | REL-SNAP-083 | PROTOCOL_ERROR | none | none | none |
| 2026-10-25 10:09 | REL-SNAP-082 | PROTOCOL_ERROR | none | none | none |
| 2026-10-24 10:06 | REL-SNAP-081 | PROTOCOL_ERROR | none | none | none |
| 2026-10-23 11:22 | REL-SNAP-080 | PROTOCOL_ERROR | none | none | none |
| 2026-10-22 10:50 | REL-SNAP-079 | PROTOCOL_ERROR | none | none | none |
| 2026-10-21 10:12 | REL-SNAP-078 | PROTOCOL_ERROR | none | none | none |
| 2026-10-20 10:42 | REL-SNAP-077 | PROTOCOL_ERROR | none | none | none |
Show all 16 observations
| 2026-10-19 10:54 | REL-SNAP-076 | PROTOCOL_ERROR | none | none | none |
| 2026-10-18 09:53 | REL-SNAP-075 | PROTOCOL_ERROR | none | none | none |
| 2026-10-17 09:53 | REL-SNAP-074 | HTTP_5XX | none | none | none |
| 2026-10-16 10:06 | REL-SNAP-073 | PROTOCOL_ERROR | none | none | none |
| 2026-10-15 10:09 | REL-SNAP-072 | PROTOCOL_ERROR | none | none | none |
| 2026-10-14 10:17 | REL-SNAP-071 | PROTOCOL_ERROR | none | none | none |
| 2026-10-13 10:19 | REL-SNAP-070 | PROTOCOL_ERROR | none | none | none |
| 2026-10-12 11:04 | REL-SNAP-069 | PROTOCOL_ERROR | none | none | none |
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 addevent.usefulapi.io/mcp reliable?
- Its sealed grade is F (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 PROTOCOL_ERROR.
- Has its tool list changed?
- Not yet known. None of its 16 observations recorded a tool list.