{
 "id": "ai.safe4/safe4",
 "name": "safe4",
 "description": "Tests an AI agent's purchase against the task it was given. Paid per call in USDC via x402.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://api.safe4.ai/mcp/"
 },
 "website": "https://api.safe4.ai/docs",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
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  "successes": 43,
  "successRate": 1,
  "consecutiveSuccesses": 43,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T14:15:42.080Z",
  "lastLatencyMs": 6522,
  "toolsAdvertised": 2,
  "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": "not_tested",
   "note": "Faceabot has not run a real task on this server yet (it only tests tools that declare themselves read-only)."
  }
 },
 "details": "https://faceabot.com/api/catalog?id=ai.safe4%2Fsafe4",
 "page": "https://faceabot.com/tools/ai.safe4/safe4",
 "badge": {
  "image": "https://faceabot.com/badge/ai.safe4/safe4.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/ai.safe4/safe4.svg)](https://faceabot.com/tools/ai.safe4/safe4)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
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   "status": "ok",
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   "f_status": "no_safe_tool"
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   "f_status": "no_safe_tool"
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 ],
 "trust": {
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  "declaredReadOnly": 0,
  "declaredCanWrite": 2,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "0c27b3078daa7cf1bdbdd0e73ebfae81",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
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  "protocol": "2025-06-18",
  "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."
 }
}