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Evidence row 38936

Observed , by baseline/1.

Kind
listing
About
source_record mcp_registry:io.github.islobodan/cruncher-mcp
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
80e80c9cff0f9df0d9af3afbf093e59c4ce416371b486058a71857ab7138db04
Leaf
0x3d36fc614071982cfad2390a9bb765a65231ebed3582d4a13b90861437621c95

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/islobodan/cruncher-mcp"
    ]
  ],
  "name": "Cruncher",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-05-08T09:33:02.932233Z",
        "status": "active",
        "statusChangedAt": "2026-05-08T09:33:02.932233Z",
        "updatedAt": "2026-05-08T09:33:02.932233Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "category": "calculator",
          "features": [
            "43 tools across 8 categories",
            "zero-dependency pure Node.js",
            "worker thread isolation with timeout protection",
            "strict JSON-Schema validation",
            "MCP spec 2025-11-25 compliant",
            "tool annotations for safety metadata",
            "fuzzy tool name matching",
            "LRU result caching"
          ],
          "tiers": {
            "full": 43,
            "minimal": 5,
            "standard": 34
          },
          "tool": "manual",
          "toolCount": 43
        }
      },
      "description": "Scientific calculator MCP server with 43 tools: arithmetic, trig, stats, unit conversion.",
      "name": "io.github.islobodan/cruncher-mcp",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Tool exposure tier: 'minimal' (5 tools), 'standard' (34 tools, default), or 'full' (43 tools)",
              "name": "CRUNCHER_TOOL_SET"
            },
            {
              "description": "Worker thread timeout in milliseconds for heavy calculations (default: 3000, range: 100-60000)",
              "name": "CRUNCHER_TIMEOUT"
            }
          ],
          "identifier": "@slbdn/cruncher-mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "1.2.29"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/islobodan/cruncher-mcp"
      },
      "title": "Cruncher",
      "version": "1.2.29",
      "websiteUrl": "https://github.com/islobodan/cruncher-mcp#readme"
    }
  },
  "source": "mcp_registry",
  "summary": "Scientific calculator MCP server with 43 tools: arithmetic, trig, stats, unit conversion."
}

What the leaf hashes

{"body":"80e80c9cff0f9df0d9af3afbf093e59c4ce416371b486058a71857ab7138db04","id":38936,"kind":"listing","method":"baseline/1","observed_us":1793025394299567,"prev":null,"subject":"mcp_registry:io.github.islobodan/cruncher-mcp","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.

How to check it · This row as JSON