io.github.polygraphso/litmus
Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.
endpoint: https://polygraph.so/api/mcp
registry: io.github.polygraphso/litmus
D
recent success 0% (30 probes) ·
MCP handshake FAILED
· protocol —
TLS valid (67d left) · latency 113.0 ms ·
HTTP 405 · auth ? ·
tools —
manifest —
· drift events seen here: 0
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-13T15:27:15Z | ✗ | D | ✗ | 113.0 ms | 67d | — | — |
| 2026-10-13T09:26:38Z | ✗ | D | ✗ | 70.0 ms | 67d | — | — |
| 2026-10-13T03:25:28Z | ✗ | D | ✗ | 242.0 ms | 67d | — | — |
| 2026-10-12T21:25:05Z | ✗ | D | ✗ | 118.0 ms | 67d | — | — |
| 2026-10-12T15:24:39Z | ✗ | D | ✗ | 140.0 ms | 68d | — | — |
| 2026-10-12T09:22:01Z | ✗ | D | ✗ | 85.0 ms | 68d | — | — |
| 2026-10-12T03:18:58Z | ✗ | D | ✗ | 112.0 ms | 68d | — | — |
| 2026-10-11T21:18:32Z | ✗ | D | ✗ | 1117.0 ms | 68d | — | — |
| 2026-10-11T15:18:07Z | ✗ | D | ✗ | 307.0 ms | 69d | — | — |
| 2026-10-11T09:16:30Z | ✗ | D | ✗ | 153.0 ms | 69d | — | — |
| 2026-10-11T03:14:52Z | ✗ | D | ✗ | 115.0 ms | 69d | — | — |
| 2026-10-10T21:14:30Z | ✗ | D | ✗ | 292.0 ms | 69d | — | — |
| 2026-10-10T15:12:45Z | ✗ | D | ✗ | 157.0 ms | 70d | — | — |
| 2026-10-10T09:11:04Z | ✗ | D | ✗ | 156.0 ms | 70d | — | — |
| 2026-10-10T03:09:29Z | ✗ | D | ✗ | 285.0 ms | 70d | — | — |
| 2026-10-09T21:08:30Z | ✗ | D | ✗ | 342.0 ms | 70d | — | — |
| 2026-10-09T15:07:45Z | ✗ | D | ✗ | 140.0 ms | 71d | — | — |
| 2026-10-09T09:06:52Z | ✗ | D | ✗ | 282.0 ms | 71d | — | — |
| 2026-10-09T03:05:58Z | ✗ | D | ✗ | 103.0 ms | 71d | — | — |
| 2026-10-08T21:05:38Z | ✗ | D | ✗ | 122.0 ms | 71d | — | — |
| 2026-10-08T15:04:02Z | ✗ | D | ✗ | 339.0 ms | 72d | — | — |
| 2026-10-08T09:03:04Z | ✗ | D | ✗ | 209.0 ms | 72d | — | — |
| 2026-10-08T03:02:11Z | ✗ | D | ✗ | 102.0 ms | 72d | — | — |
| 2026-10-07T21:00:53Z | ✗ | D | ✗ | 363.0 ms | 72d | — | — |
| 2026-10-07T15:00:32Z | ✗ | D | ✗ | 440.0 ms | 73d | — | — |
| 2026-10-07T08:59:00Z | ✗ | D | ✗ | 161.0 ms | 73d | — | — |
| 2026-10-07T02:57:58Z | ✗ | D | ✗ | 300.0 ms | 73d | — | — |
| 2026-10-06T20:56:58Z | ✗ | D | ✗ | 140.0 ms | 73d | — | — |
| 2026-10-06T14:56:05Z | ✗ | D | ✗ | 132.0 ms | 74d | — | — |
| 2026-10-06T08:54:32Z | ✗ | D | ✗ | 160.0 ms | 74d | — | — |