ONCE — Exactly-Once Reliability for AI Agent Actions
Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.
endpoint: https://optimistic-compassion-production.up.railway.app/mcp
registry: io.github.GSterlingPress/once
A
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-11-25
TLS valid (74d left) · latency 80.0 ms ·
HTTP 405 · auth open ·
tools 2
manifest b04d60f3045ecfeb
· drift events seen here: 0
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-12T22:55:16Z | ✓ | A | ✓ | 80.0 ms | 74d | 2 | b04d60f3045ecfeb |
| 2026-10-12T16:53:27Z | ✓ | A | ✓ | 85.0 ms | 74d | 2 | b04d60f3045ecfeb |
| 2026-10-12T10:49:46Z | ✓ | A | ✓ | 99.0 ms | 74d | 2 | b04d60f3045ecfeb |
| 2026-10-12T04:43:27Z | ✓ | A | ✓ | 86.0 ms | 74d | 2 | b04d60f3045ecfeb |
| 2026-10-11T22:42:29Z | ✓ | A | ✓ | 62.0 ms | 75d | 2 | b04d60f3045ecfeb |
| 2026-10-11T16:41:48Z | ✓ | A | ✓ | 146.0 ms | 75d | 2 | b04d60f3045ecfeb |
| 2026-10-11T10:41:09Z | ✓ | A | ✓ | 90.0 ms | 75d | 2 | b04d60f3045ecfeb |
| 2026-10-11T04:39:32Z | ✓ | A | ✓ | 121.0 ms | 75d | 2 | b04d60f3045ecfeb |
| 2026-10-10T22:38:57Z | ✓ | A | ✓ | 111.0 ms | 76d | 2 | b04d60f3045ecfeb |
| 2026-10-10T16:38:24Z | ✓ | A | ✓ | 108.0 ms | 76d | 2 | b04d60f3045ecfeb |
| 2026-10-10T10:37:27Z | ✓ | A | ✓ | 92.0 ms | 76d | 2 | b04d60f3045ecfeb |
| 2026-10-10T04:36:28Z | ✓ | A | ✓ | 105.0 ms | 76d | 2 | b04d60f3045ecfeb |
| 2026-10-09T22:34:34Z | ✓ | A | ✓ | 55.0 ms | 77d | 2 | b04d60f3045ecfeb |
| 2026-10-09T16:33:18Z | ✓ | A | ✓ | 150.0 ms | 77d | 2 | b04d60f3045ecfeb |
| 2026-10-09T10:30:54Z | ✓ | A | ✓ | 100.0 ms | 77d | 2 | b04d60f3045ecfeb |
| 2026-10-09T04:29:14Z | ✓ | A | ✓ | 91.0 ms | 77d | 2 | b04d60f3045ecfeb |
| 2026-10-08T22:28:10Z | ✓ | A | ✓ | 121.0 ms | 78d | 2 | b04d60f3045ecfeb |
| 2026-10-08T16:27:20Z | ✓ | A | ✓ | 182.0 ms | 78d | 2 | b04d60f3045ecfeb |
| 2026-10-08T10:25:49Z | ✓ | A | ✓ | 98.0 ms | 78d | 2 | b04d60f3045ecfeb |
| 2026-10-08T04:25:14Z | ✓ | A | ✓ | 119.0 ms | 78d | 2 | b04d60f3045ecfeb |
| 2026-10-07T22:24:31Z | ✓ | A | ✓ | 96.0 ms | 79d | 2 | b04d60f3045ecfeb |
| 2026-10-07T16:23:32Z | ✓ | A | ✓ | 218.0 ms | 79d | 2 | b04d60f3045ecfeb |
| 2026-10-07T10:22:34Z | ✓ | A | ✓ | 92.0 ms | 79d | 2 | b04d60f3045ecfeb |
| 2026-10-07T04:21:22Z | ✓ | A | ✓ | 99.0 ms | 79d | 2 | b04d60f3045ecfeb |
| 2026-10-06T22:20:04Z | ✓ | A | ✓ | 286.0 ms | 80d | 2 | b04d60f3045ecfeb |
| 2026-10-06T16:19:25Z | ✓ | A | ✓ | 119.0 ms | 80d | 2 | b04d60f3045ecfeb |
| 2026-10-06T10:18:22Z | ✓ | A | ✓ | 102.0 ms | 80d | 2 | b04d60f3045ecfeb |
| 2026-10-06T04:17:25Z | ✓ | A | ✓ | 78.0 ms | 80d | 2 | b04d60f3045ecfeb |
| 2026-10-05T22:16:24Z | ✓ | A | ✓ | 68.0 ms | 81d | 2 | b04d60f3045ecfeb |
| 2026-10-05T16:15:40Z | ✓ | A | ✓ | 176.0 ms | 81d | 2 | b04d60f3045ecfeb |