> NOTICE — Pre-launch build. Every record here is a dated observation of a real MCP endpoint operated by a third party, rendered from the published archive. Coverage is partial — the figures cover the snapshots in the export this build was made from, not the whole chain and not the whole ecosystem. Claims and badges are not open.

# api.m2mcent.com/discount-coupon-validator-mcp/sse

Last observed: 2026-10-02T09:04:11.400Z
Recorded as: HTTP_4XX (http_404)
Transport: sse
Observations held: 46
Published: yes

## Observations

| Observed | Snapshot | Recorded as | Detail | Latency ms | Tools | Tool schema fingerprint |
|---|---|---|---|---|---|---|
| 2026-08-18T09:22:23.049Z | REL-SNAP-014 | PROTOCOL_ERROR | sse_non_200_402 | - | - | - |
| 2026-08-19T09:03:59.414Z | REL-SNAP-015 | PROTOCOL_ERROR | sse_non_200_402 | - | - | - |
| 2026-08-20T09:11:47.526Z | REL-SNAP-016 | PROTOCOL_ERROR | sse_non_200_402 | - | - | - |
| 2026-08-21T09:27:15.790Z | REL-SNAP-017 | PROTOCOL_ERROR | sse_non_200_402 | - | - | - |
| 2026-08-22T09:03:57.765Z | REL-SNAP-018 | PAYMENT_REQUIRED | http_402 | - | - | - |
| 2026-08-23T10:04:40.555Z | REL-SNAP-019 | PAYMENT_REQUIRED | http_402 | - | - | - |
| 2026-08-24T09:07:43.233Z | REL-SNAP-020 | PAYMENT_REQUIRED | http_402 | - | - | - |
| 2026-08-25T09:10:04.576Z | REL-SNAP-021 | PAYMENT_REQUIRED | http_402 | - | - | - |
| 2026-08-26T09:06:28.943Z | REL-SNAP-022 | PAYMENT_REQUIRED | http_402 | - | - | - |
| 2026-08-27T09:20:14.502Z | REL-SNAP-023 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-28T09:17:28.697Z | REL-SNAP-024 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-29T09:07:23.410Z | REL-SNAP-025 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-30T09:09:33.699Z | REL-SNAP-026 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-08-31T09:12:44.173Z | REL-SNAP-027 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-01T09:07:29.023Z | REL-SNAP-028 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-02T09:13:57.760Z | REL-SNAP-029 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-03T09:35:36.965Z | REL-SNAP-030 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-04T09:26:44.293Z | REL-SNAP-031 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-05T09:11:54.322Z | REL-SNAP-032 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-06T09:20:27.536Z | REL-SNAP-033 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-07T09:39:42.730Z | REL-SNAP-034 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-08T09:31:46.492Z | REL-SNAP-035 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-09T09:20:12.011Z | REL-SNAP-036 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-10T09:13:41.089Z | REL-SNAP-037 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-11T09:13:04.082Z | REL-SNAP-038 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-12T09:05:06.764Z | REL-SNAP-039 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-13T09:32:45.482Z | REL-SNAP-040 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-14T09:32:24.489Z | REL-SNAP-041 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-15T09:25:52.930Z | REL-SNAP-042 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-16T09:48:29.522Z | REL-SNAP-043 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-17T09:31:24.138Z | REL-SNAP-044 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-18T09:24:01.453Z | REL-SNAP-045 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-19T09:10:09.790Z | REL-SNAP-046 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-20T09:25:32.703Z | REL-SNAP-047 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-21T09:06:43.886Z | REL-SNAP-048 | PROTOCOL_ERROR | post_rejected | - | - | - |
| 2026-09-22T09:21:38.564Z | REL-SNAP-049 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-23T09:43:52.171Z | REL-SNAP-050 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-24T09:39:11.181Z | REL-SNAP-051 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-25T09:36:53.982Z | REL-SNAP-052 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-26T09:13:24.045Z | REL-SNAP-053 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-27T09:26:10.794Z | REL-SNAP-054 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-28T09:40:06.522Z | REL-SNAP-055 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-29T09:27:30.186Z | REL-SNAP-056 | HTTP_4XX | http_404 | - | - | - |
| 2026-09-30T09:32:15.082Z | REL-SNAP-057 | HTTP_4XX | http_404 | - | - | - |
| 2026-10-01T09:08:21.427Z | REL-SNAP-058 | HTTP_4XX | http_404 | - | - | - |
| 2026-10-02T09:04:11.400Z | REL-SNAP-059 | HTTP_4XX | http_404 | - | - | - |

## Identity

Record key: api.m2mcent.com/discount-coupon-validator-mcp/sse (the normalised endpoint observed)
Registry names (not anchored — no inclusion proof reaches this field): io.github.Evozim/discount-coupon-validator-mcp (what the registry said when we swept it, as observed by us — not evidence that the registry was correct, that the name belongs to whoever registered it, or that it still resolves)
Name reported by the server: not reported (self-reported, unverified, never used as identity)

Each observation carries a merkle leaf in the snapshot it belongs to. The chain
establishes that a root existed by a given time; it does not establish that any
measurement is true.