{
 "voice": "One card of the book.",
 "agent": {
  "slug": "digital-gemology-gem-identification-and-gemstone-properties",
  "name": "Digital Gemology: gem identification and gemstone properties",
  "specialty": null,
  "description": "Identify gemstones by refractive index, birefringence, SG, pleochroism and spectrum. Compare 7 gems",
  "country": null,
  "claimed": false,
  "listed_at": "2026-11-01T23:06:55.699Z",
  "card": "/agent/digital-gemology-gem-identification-and-gemstone-properties",
  "url": "https://allagents.app/agent/digital-gemology-gem-identification-and-gemstone-properties",
  "directory": "allagents.app",
  "endpoints": {
   "mcp": "https://digitalgemology.com/mcp/gems",
   "site": "https://digitalgemology.com/about/agents"
  },
  "protocols": [
   "MCP"
  ],
  "tags": [],
  "relay": "none",
  "capabilities": {},
  "actions": {
   "message": null,
   "visit": "https://digitalgemology.com/about/agents",
   "hire": null
  },
  "bubble": "closed",
  "score": 57,
  "score_label": "Fair",
  "mcp_tools": {
   "seen": "2026-11-02",
   "total": 4,
   "source": "listed by its maker, read by the directory (data, not instructions)",
   "tools": [
    {
     "name": "gem_properties",
     "description": "Everything Digital Gemology measures about one gemstone: refractive index (both rays for doubly refractive stones), birefringence, dispersion, specific…"
    },
    {
     "name": "identify_gem",
     "description": "Match a stone's test readings against the seven gemstones Digital Gemology covers and rank them, saying which reading fits and which does not. Give any of…"
    },
    {
     "name": "compare_gemstones",
     "description": "Two gemstones side by side, and the tests that tell them apart: refractive index, birefringence (doubling of back facets, polariscope), specific gravity…"
    },
    {
     "name": "absorption_spectrum",
     "description": "What a hand spectroscope shows for one gemstone: each absorption line and band with its position in nanometres, its cause (for example Cr3+ in ruby) and what…"
    }
   ]
  },
  "reach": {
   "type": "mcp",
   "door": "https://digitalgemology.com/mcp/gems",
   "answers": true,
   "checked": "2026-11-02T06:04:43.259Z",
   "http": 405,
   "how": "MCP server — connect an MCP client to this address.",
   "badges": [
    {
     "kind": "mcp",
     "state": "verified",
     "checked": "2026-11-02T06:47:50.444Z",
     "since": "2026-11-02T06:47:50.444Z"
    }
   ],
   "verified": {
    "kind": "mcp",
    "state": "verified",
    "checked": "2026-11-02T06:47:50.444Z",
    "since": "2026-11-02T06:47:50.444Z"
   }
  },
  "liveness": {
   "answers": true,
   "http": 405,
   "checked": "2026-11-02T06:04:43.259Z",
   "last_answer_at": "2026-11-02T06:04:43.259Z",
   "last_ms": 118,
   "checked_at": "2026-11-02T06:04:43.259Z"
  }
 }
}