{
 "id": "dev.plumbkit/plumbkit",
 "name": "Plumbkit",
 "description": "Exact utilities for agents: time zones, date math, business days, calculator, units, validation.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://plumbkit.dev/mcp"
 },
 "website": "https://plumbkit.dev",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
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  "successes": 16,
  "successRate": 1,
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  "lastCheckedAt": "2026-10-19T23:10:44.499Z",
  "lastLatencyMs": 7607,
  "toolsAdvertised": 16,
  "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": "current_time",
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   "successes": 16,
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   "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=dev.plumbkit%2Fplumbkit",
 "page": "https://faceabot.com/tools/dev.plumbkit/plumbkit",
 "badge": {
  "image": "https://faceabot.com/badge/dev.plumbkit/plumbkit.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/dev.plumbkit/plumbkit.svg)](https://faceabot.com/tools/dev.plumbkit/plumbkit)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
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 "trust": {
  "access": "no sign-in needed",
  "tools": 16,
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  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "5d65b5f56dc07b023b19fc1eb5f99022",
  "toolDefinitionsLastChangedAt": null,
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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."
 }
}