{
 "id": "io.github.mithgalalfayez/nullclear",
 "name": "NullClear Arbiter",
 "description": "Autonomous x402 payment schema-escrow arbiter, spend firewall, failover & ERC-8004 Sybil oracle",
 "connect": {
  "transport": "streamable-http",
  "url": "https://api.nullclear.dev/mcp"
 },
 "website": "https://nullclear.dev",
 "version": "1.1.1",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 11,
  "successes": 11,
  "successRate": 1,
  "consecutiveSuccesses": 11,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T23:10:44.673Z",
  "lastLatencyMs": 7600,
  "toolsAdvertised": 8,
  "method": "MCP initialize + tools/list from Faceabot, identified as FaceabotProbe/1.0 plus, when the server declares a read-only tool (readOnlyHint), one call of that tool with a neutral sample input to check it really returns a result. Servers on the 2026-07-28 MCP revision (no initialize handshake) get the same checks in that revision",
  "work": {
   "verdict": "proven_working",
   "tool": "nullclear_discover_verified_x402_apis",
   "attempts": 4,
   "successes": 4,
   "successRate": 1,
   "consecutiveSuccesses": 4,
   "lastStatus": "ok",
   "lastMs": 3401,
   "sampleInput": "{}",
   "method": "Faceabot calls one read-only tool (annotations.readOnlyHint) with a neutral sample input and checks that it returns a non-empty result without error."
  }
 },
 "details": "https://faceabot.com/api/catalog?id=io.github.mithgalalfayez%2Fnullclear",
 "page": "https://faceabot.com/tools/io.github.mithgalalfayez/nullclear",
 "badge": {
  "image": "https://faceabot.com/badge/io.github.mithgalalfayez/nullclear.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/io.github.mithgalalfayez/nullclear.svg)](https://faceabot.com/tools/io.github.mithgalalfayez/nullclear)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-19T23:10:44.673Z",
   "ok": 1,
   "status": "ok",
   "ms": 7600,
   "f_status": "ok"
  },
  {
   "at": "2026-10-19T10:50:48.876Z",
   "ok": 1,
   "status": "ok",
   "ms": 8513,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T18:10:44.685Z",
   "ok": 1,
   "status": "ok",
   "ms": 7229,
   "f_status": "ok"
  },
  {
   "at": "2026-10-18T06:05:45.939Z",
   "ok": 1,
   "status": "ok",
   "ms": 8688,
   "f_status": "ok"
  },
  {
   "at": "2026-10-17T22:15:39.362Z",
   "ok": 1,
   "status": "ok",
   "ms": 5332,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-17T13:55:40.304Z",
   "ok": 1,
   "status": "ok",
   "ms": 6392,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-17T06:05:41.217Z",
   "ok": 1,
   "status": "ok",
   "ms": 6035,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-16T22:20:49.466Z",
   "ok": 1,
   "status": "ok",
   "ms": 6963,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-16T15:15:49.366Z",
   "ok": 1,
   "status": "ok",
   "ms": 6401,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-16T08:20:55.774Z",
   "ok": 1,
   "status": "ok",
   "ms": 7364,
   "f_status": "no_safe_tool"
  },
  {
   "at": "2026-10-16T01:31:04.518Z",
   "ok": 1,
   "status": "ok",
   "ms": 6872,
   "f_status": "no_safe_tool"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 8,
  "declaredReadOnly": 7,
  "declaredCanWrite": 1,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "dbd66fcc9a33e34ace2ef1ab5ce2391b",
  "toolDefinitionsLastChangedAt": "2026-10-18T06:05:46.141Z",
  "toolDefinitionChangesSinceFirstSeen": 1,
  "firstSeenAt": "2026-10-17T22:15:39.759Z",
  "protocol": "2024-11-05",
  "warnings": [],
  "note": "Facts observed by Faceabot when it last read this server's tool list. 'Can write' counts tools not declared read-only (annotations are self-declared). A changed fingerprint means tool names, descriptions or schemas changed since Faceabot first saw them: re-check before trusting an earlier approval."
 }
}