{
 "id": "uk.co.realyield/realyield",
 "name": "RealYield",
 "description": "UK buy-to-let maths: true net yield, cashflow, Section 24, stamp duty and area rental yields.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://www.realyield.co.uk/mcp"
 },
 "website": "https://www.realyield.co.uk/ai-assistants",
 "version": "1.0.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "flaky",
  "attempts": 11,
  "successes": 10,
  "successRate": 0.909,
  "consecutiveSuccesses": 0,
  "lastStatus": "timeout",
  "lastCheckedAt": "2026-10-20T13:45:47.330Z",
  "lastLatencyMs": 8349,
  "toolsAdvertised": 11,
  "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": "list_realyield_calculators",
   "attempts": 10,
   "successes": 10,
   "successRate": 1,
   "consecutiveSuccesses": 10,
   "lastStatus": "ok",
   "lastMs": 4911,
   "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=uk.co.realyield%2Frealyield",
 "page": "https://faceabot.com/tools/uk.co.realyield/realyield",
 "badge": {
  "image": "https://faceabot.com/badge/uk.co.realyield/realyield.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/uk.co.realyield/realyield.svg)](https://faceabot.com/tools/uk.co.realyield/realyield)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
 "recentChecks": [
  {
   "at": "2026-10-20T13:45:47.330Z",
   "ok": 0,
   "status": "timeout",
   "ms": 8349,
   "f_status": null
  },
  {
   "at": "2026-10-20T02:05:47.435Z",
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   "ms": 8798,
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   "status": "ok",
   "ms": 5637,
   "f_status": "ok"
  },
  {
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   "ok": 1,
   "status": "ok",
   "ms": 7484,
   "f_status": "ok"
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  {
   "at": "2026-10-18T00:20:46.631Z",
   "ok": 1,
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   "f_status": "ok"
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   "f_status": "ok"
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   "f_status": "ok"
  },
  {
   "at": "2026-10-17T00:10:55.559Z",
   "ok": 1,
   "status": "ok",
   "ms": 8052,
   "f_status": "ok"
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  {
   "at": "2026-10-16T17:01:17.741Z",
   "ok": 1,
   "status": "ok",
   "ms": 10741,
   "f_status": "ok"
  },
  {
   "at": "2026-10-16T10:01:10.279Z",
   "ok": 1,
   "status": "ok",
   "ms": 7511,
   "f_status": "ok"
  }
 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 11,
  "declaredReadOnly": 11,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "8fc287ddf8484d4153fa20dc7f0506ad",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-18T00:20:46.828Z",
  "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."
 }
}