api.callboard.fm/sse
Graded A by MCP Verify under grade/v1, sealed in snapshot REL-SNAP-084 on 27 October 2026. Recorded reachable in 18 of 60 observations since 29 August 2026.
A
Sealed grades: UNGRADED at REL-SNAP-037, F from REL-SNAP-038 to REL-SNAP-072, D from REL-SNAP-073 to REL-SNAP-076, C from REL-SNAP-077 to REL-SNAP-078, B at REL-SNAP-079, A from REL-SNAP-080 to REL-SNAP-084.
- Reachable
- Reachable, asked to sign in or pay
- Not reachable
- Not observed
- Transport
- sse
- Tools listed
- none
- Tool schema fingerprint
- none
- Name reported by the server
- Not reported.self-reported, never used as identity
- Registry names (not anchored)
- fm.callboard/connectoras the registry listed it; not covered by the chain
- First and last observed
- 29 Aug 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 09:01 | REL-SNAP-084 | AUTH_REQUIRED | none | none | none |
| 2026-10-26 09:00 | REL-SNAP-083 | AUTH_REQUIRED | none | none | none |
| 2026-10-25 08:59 | REL-SNAP-082 | AUTH_REQUIRED | none | none | none |
| 2026-10-24 08:59 | REL-SNAP-081 | AUTH_REQUIRED | none | none | none |
| 2026-10-23 10:09 | REL-SNAP-080 | AUTH_REQUIRED | none | none | none |
| 2026-10-22 09:46 | REL-SNAP-079 | AUTH_REQUIRED | none | none | none |
| 2026-10-21 09:26 | REL-SNAP-078 | AUTH_REQUIRED | none | none | none |
| 2026-10-20 09:54 | REL-SNAP-077 | AUTH_REQUIRED | none | none | none |
Show all 60 observations
| 2026-10-19 10:05 | REL-SNAP-076 | AUTH_REQUIRED | none | none | none |
| 2026-10-18 09:08 | REL-SNAP-075 | AUTH_REQUIRED | none | none | none |
| 2026-10-17 09:07 | REL-SNAP-074 | AUTH_REQUIRED | none | none | none |
| 2026-10-16 09:19 | REL-SNAP-073 | AUTH_REQUIRED | none | none | none |
| 2026-10-15 09:23 | REL-SNAP-072 | AUTH_REQUIRED | none | none | none |
| 2026-10-14 09:29 | REL-SNAP-071 | AUTH_REQUIRED | none | none | none |
| 2026-10-13 09:31 | REL-SNAP-070 | AUTH_REQUIRED | none | none | none |
| 2026-10-12 10:12 | REL-SNAP-069 | AUTH_REQUIRED | none | none | none |
| 2026-10-11 09:04 | REL-SNAP-068 | AUTH_REQUIRED | none | none | none |
| 2026-10-10 09:06 | REL-SNAP-067 | AUTH_REQUIRED | none | none | none |
| 2026-10-09 09:09 | REL-SNAP-066 | HTTP_4XX | none | none | none |
| 2026-10-08 09:20 | REL-SNAP-065 | HTTP_4XX | none | none | none |
| 2026-10-07 09:30 | REL-SNAP-064 | HTTP_4XX | none | none | none |
| 2026-10-06 09:06 | REL-SNAP-063 | HTTP_4XX | none | none | none |
| 2026-10-05 09:54 | REL-SNAP-062 | HTTP_4XX | none | none | none |
| 2026-10-04 09:22 | REL-SNAP-061 | HTTP_4XX | none | none | none |
| 2026-10-03 09:14 | REL-SNAP-060 | HTTP_4XX | none | none | none |
| 2026-10-02 09:11 | REL-SNAP-059 | HTTP_4XX | none | none | none |
| 2026-10-01 09:15 | REL-SNAP-058 | HTTP_4XX | none | none | none |
| 2026-09-30 09:39 | REL-SNAP-057 | HTTP_4XX | none | none | none |
| 2026-09-29 09:35 | REL-SNAP-056 | HTTP_4XX | none | none | none |
| 2026-09-28 09:47 | REL-SNAP-055 | HTTP_4XX | none | none | none |
| 2026-09-27 09:33 | REL-SNAP-054 | HTTP_4XX | none | none | none |
| 2026-09-26 09:20 | REL-SNAP-053 | HTTP_4XX | none | none | none |
| 2026-09-25 09:44 | REL-SNAP-052 | HTTP_4XX | none | none | none |
| 2026-09-24 09:47 | REL-SNAP-051 | HTTP_4XX | none | none | none |
| 2026-09-23 09:51 | REL-SNAP-050 | HTTP_4XX | none | none | none |
| 2026-09-22 09:30 | REL-SNAP-049 | HTTP_4XX | none | none | none |
| 2026-09-21 09:15 | REL-SNAP-048 | HTTP_4XX | none | none | none |
| 2026-09-20 09:34 | REL-SNAP-047 | HTTP_4XX | none | none | none |
| 2026-09-19 09:18 | REL-SNAP-046 | HTTP_4XX | none | none | none |
| 2026-09-18 09:33 | REL-SNAP-045 | HTTP_4XX | none | none | none |
| 2026-09-17 09:43 | REL-SNAP-044 | HTTP_4XX | none | none | none |
| 2026-09-16 09:58 | REL-SNAP-043 | HTTP_4XX | none | none | none |
| 2026-09-15 09:34 | REL-SNAP-042 | HTTP_4XX | none | none | none |
| 2026-09-14 09:40 | REL-SNAP-041 | HTTP_4XX | none | none | none |
| 2026-09-13 09:40 | REL-SNAP-040 | HTTP_4XX | none | none | none |
| 2026-09-12 09:13 | REL-SNAP-039 | HTTP_4XX | none | none | none |
| 2026-09-11 09:21 | REL-SNAP-038 | HTTP_4XX | none | none | none |
| 2026-09-10 09:22 | REL-SNAP-037 | HTTP_4XX | none | none | none |
| 2026-09-09 09:28 | REL-SNAP-036 | HTTP_4XX | none | none | none |
| 2026-09-08 09:45 | REL-SNAP-035 | HTTP_4XX | none | none | none |
| 2026-09-07 09:53 | REL-SNAP-034 | HTTP_4XX | none | none | none |
| 2026-09-06 09:29 | REL-SNAP-033 | HTTP_4XX | none | none | none |
| 2026-09-05 09:20 | REL-SNAP-032 | HTTP_4XX | none | none | none |
| 2026-09-04 09:35 | REL-SNAP-031 | HTTP_4XX | none | none | none |
| 2026-09-03 09:45 | REL-SNAP-030 | HTTP_4XX | none | none | none |
| 2026-09-02 09:24 | REL-SNAP-029 | HTTP_4XX | none | none | none |
| 2026-09-01 09:17 | REL-SNAP-028 | HTTP_4XX | none | none | none |
| 2026-08-31 09:22 | REL-SNAP-027 | HTTP_4XX | none | none | none |
| 2026-08-30 09:20 | REL-SNAP-026 | HTTP_4XX | none | none | none |
| 2026-08-29 09:18 | REL-SNAP-025 | HTTP_4XX | 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 api.callboard.fm/sse 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 AUTH_REQUIRED.
- Has its tool list changed?
- Not yet known. None of its 60 observations recorded a tool list.