{
 "id": "io.github.jiankn/jackpot-calculator",
 "name": "Jackpot Calculator",
 "description": "Estimate US lottery taxes, compare cash and annuity, split pool prizes and calculate jackpot odds.",
 "connect": {
  "transport": "streamable-http",
  "url": "https://jackpot-calculator-mcp.jiankn.workers.dev/mcp"
 },
 "website": "https://jackpotcalculator.com/mcp/",
 "version": "0.1.0",
 "source": "official MCP registry (registry.modelcontextprotocol.io)",
 "reliability": {
  "verdict": "reliable",
  "attempts": 19,
  "successes": 19,
  "successRate": 1,
  "consecutiveSuccesses": 19,
  "lastStatus": "ok",
  "lastCheckedAt": "2026-10-19T17:55:43.362Z",
  "lastLatencyMs": 7083,
  "toolsAdvertised": 4,
  "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": "calculate_lottery_odds",
   "attempts": 19,
   "successes": 19,
   "successRate": 1,
   "consecutiveSuccesses": 19,
   "lastStatus": "ok",
   "lastMs": 2642,
   "sampleInput": "{\"game\":\"powerball\"}",
   "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.jiankn%2Fjackpot-calculator",
 "page": "https://faceabot.com/tools/io.github.jiankn/jackpot-calculator",
 "badge": {
  "image": "https://faceabot.com/badge/io.github.jiankn/jackpot-calculator.svg",
  "markdown": "[![Measured by Faceabot](https://faceabot.com/badge/io.github.jiankn/jackpot-calculator.svg)](https://faceabot.com/tools/io.github.jiankn/jackpot-calculator)",
  "note": "Live reliability badge the publisher of this server can show on its README or website."
 },
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   "status": "ok",
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   "f_status": "ok"
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  {
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 ],
 "trust": {
  "access": "no sign-in needed",
  "tools": 4,
  "declaredReadOnly": 4,
  "declaredCanWrite": 0,
  "declaredDestructive": 0,
  "toolDefinitionsFingerprint": "04b6859bef15c006373c454245fa283d",
  "toolDefinitionsLastChangedAt": null,
  "toolDefinitionChangesSinceFirstSeen": 0,
  "firstSeenAt": "2026-10-17T18:50:41.721Z",
  "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."
 }
}