Nostr Signer
Approve Nostr signatures with your own browser signer without exposing a private key.
endpoint: https://signer.frontiercrown.com/mcp
registry: com.frontiercrown.signer/nostr-signer
A
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-06-18
TLS valid (58d left) · latency 101.0 ms ·
HTTP 400 · auth open ·
tools 17
manifest d3da6b31c631eb0b
· drift events seen here: 0
Embed this grade
<a href="https://golemreach.com/trust/s/18530"> <img src="https://golemreach.com/trust/badge/18530.svg" alt="golemreach trust grade"></a>
Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-13T03:13:39Z | ✓ | A | ✓ | 101.0 ms | 58d | 17 | d3da6b31c631eb0b |
| 2026-10-12T21:13:29Z | ✓ | A | ✓ | 158.0 ms | 58d | 17 | d3da6b31c631eb0b |
| 2026-10-12T15:13:16Z | ✓ | A | ✓ | 101.0 ms | 58d | 17 | d3da6b31c631eb0b |
| 2026-10-12T09:11:06Z | ✓ | A | ✓ | 117.0 ms | 58d | 17 | d3da6b31c631eb0b |
| 2026-10-12T03:09:23Z | ✓ | A | ✓ | 124.0 ms | 59d | 17 | d3da6b31c631eb0b |
| 2026-10-11T21:07:21Z | ✓ | A | ✓ | 171.0 ms | 59d | 17 | d3da6b31c631eb0b |
| 2026-10-11T15:06:54Z | ✓ | A | ✓ | 108.0 ms | 59d | 17 | d3da6b31c631eb0b |
| 2026-10-11T09:05:19Z | ✓ | A | ✓ | 126.0 ms | 59d | 17 | d3da6b31c631eb0b |
| 2026-10-11T03:02:49Z | ✓ | A | ✓ | 100.0 ms | 60d | 17 | d3da6b31c631eb0b |
| 2026-10-10T21:01:05Z | ✓ | A | ✓ | 129.0 ms | 60d | 17 | d3da6b31c631eb0b |
| 2026-10-10T15:00:13Z | ✓ | A | ✓ | 113.0 ms | 60d | 17 | d3da6b31c631eb0b |
| 2026-10-10T08:58:18Z | ✓ | A | ✓ | 119.0 ms | 60d | 17 | d3da6b31c631eb0b |
| 2026-10-10T02:56:58Z | ✓ | A | ✓ | 146.0 ms | 61d | 17 | d3da6b31c631eb0b |
| 2026-10-09T20:56:34Z | ✓ | A | ✓ | 168.0 ms | 61d | 17 | d3da6b31c631eb0b |
| 2026-10-09T14:55:48Z | ✓ | A | ✓ | 80.0 ms | 61d | 17 | d3da6b31c631eb0b |
| 2026-10-09T08:53:49Z | ✓ | A | ✓ | 119.0 ms | 61d | 17 | d3da6b31c631eb0b |
| 2026-10-09T02:52:37Z | ✓ | A | ✓ | 123.0 ms | 62d | 17 | d3da6b31c631eb0b |
| 2026-10-08T20:51:25Z | ✓ | A | ✓ | 110.0 ms | 62d | 17 | d3da6b31c631eb0b |
| 2026-10-08T14:50:48Z | ✓ | A | ✓ | 593.0 ms | 62d | 17 | d3da6b31c631eb0b |
| 2026-10-08T08:48:31Z | ✓ | A | ✓ | 195.0 ms | 62d | 17 | d3da6b31c631eb0b |
| 2026-10-08T02:47:06Z | ✓ | A | ✓ | 168.0 ms | 63d | 17 | d3da6b31c631eb0b |
| 2026-10-07T20:46:35Z | ✓ | A | ✓ | 129.0 ms | 63d | 17 | d3da6b31c631eb0b |
| 2026-10-07T14:45:55Z | ✓ | A | ✓ | 240.0 ms | 63d | 17 | d3da6b31c631eb0b |
| 2026-10-07T08:44:56Z | ✓ | A | ✓ | 92.0 ms | 63d | 17 | d3da6b31c631eb0b |
| 2026-10-07T02:44:28Z | ✓ | A | ✓ | 124.0 ms | 64d | 17 | d3da6b31c631eb0b |
| 2026-10-06T20:44:23Z | ✓ | A | ✓ | 224.0 ms | 64d | 17 | d3da6b31c631eb0b |
| 2026-10-06T14:43:56Z | ✓ | A | ✓ | 119.0 ms | 64d | 17 | d3da6b31c631eb0b |
| 2026-10-06T08:43:16Z | ✓ | A | ✓ | 134.0 ms | 64d | 17 | d3da6b31c631eb0b |
| 2026-10-06T02:42:11Z | ✓ | A | ✓ | 163.0 ms | 65d | 17 | d3da6b31c631eb0b |
| 2026-10-05T20:40:27Z | ✓ | A | ✓ | 112.0 ms | 65d | 17 | d3da6b31c631eb0b |