protogrid

Search / au.com.ministryofgems/gemmology

Ministry of Gems — Gemmology & Gemstones

R0· no sign-in

Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.

v2.0.1 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality91strong
Trust79of 100
Uptime, 30 days97%
Latency p50207 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "gemmology": {
      "type": "http",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}
claude mcp add --transport http gemmology https://mog-concierge.33guruge.workers.dev/mcp
[mcp_servers.gemmology]
url = "https://mog-concierge.33guruge.workers.dev/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "gemmology": {
      "type": "remote",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "gemmology": {
      "type": "http",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=gemmology&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbW9nLWNvbmNpZXJnZS4zM2d1cnVnZS53b3JrZXJzLmRldi9tY3AifQ%3D%3D"
}
{
  "servers": {
    "gemmology": {
      "type": "http",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}
{
  "mcpServers": {
    "gemmology": {
      "httpUrl": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}
extensions:
  "gemmology":
    enabled: true
    name: "gemmology"
    type: streamable_http
    uri: "https://mog-concierge.33guruge.workers.dev/mcp"
    timeout: 300

Quality 91 / 100strong

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations13 of 13 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 2,071 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

13 tools, about 2,071 tokens to load them all · tool set 8cf40ad567c2 · checked 2026-10-20 20:46 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 79 / 100

no-repository
provenance55
liveness99
freshness85
hygiene80

+dns-namespace +website +reachable +uptime-97% ~updated-32d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mog-concierge.33guruge.workers.dev/mcp streamable-httpnoneyes97%207 ms2025-06-182026-10-20

Tools (13)

birthstone_for_monthread-onlyThe modern and traditional birthstones for a month, from the FGAA-reviewed table, with a link to The Birthstone Handbook for history, treatments to expect and buying guidance. Accepts a month name or number.
compare_gemsread-onlySide-by-side physical properties of two gem species with a plain verdict on which is harder, and a note on toughness — the half of durability the hardness scale does not show. Good for "sapphire or diamond for an everyday ring".
define_gem_termread-onlyLook up a gemmological term in The Gem Lexicon of Ministry of Gems — 215 definitions verified by an FGAA-qualified gemmologist. Returns the definition, its subject section, and a citable anchor URL. Use for terms such as padparadscha, corundum, parti sapphire, unheated, or asterism.
faceup_size_estimateread-onlyApproximate face-up millimetre dimensions for a stone of a given species, shape and carat weight — and, unlike diamond-only calculators, corrected for specific gravity, so a 2 ct sapphire, spinel, emerald or opal is sized correctly rather than as if it were diamond. Shapes: round, oval, cushion, emerald, pear, marquise, princess, radiant, heart, trillion.
gem_care_guideread-onlyWhether warm soapy water, an ultrasonic cleaner or a steam cleaner is safe for a given gemstone, plus everyday-wear notes, from the FGAA-reviewed care table. Covers sapphire and ruby, diamond, emerald, opal, pearl, tanzanite, tourmaline and more.
gem_propertiesread-onlyMohs hardness, refractive index, specific gravity, birefringence and crystal system for a gem species (diamond, corundum/sapphire/ruby, emerald, spinel, opal, tourmaline, garnet, quartz and more), from the FGAA-reviewed Gem Data Tables. Accepts trade names — "sapphire" resolves to corundum, "tsavorite" to garnet.
get_gem_productread-onlyFull detail for one Ministry of Gems product by handle or URL: specifications, description, price in AUD, availability, variants, images, the Digital Gemstone Passport link for loose stones, and a direct checkout link. Use after search_gem_inventory.
lab_report_checkread-onlyThe issuing laboratory's own verification page and a four-step checklist for confirming a gemstone or diamond grading report — GIA, IGI, GRS, SSEF, Gübelin, AGL, Lotus, GIT, HRD, GCAL and others, including the coloured-stone laboratories diamond tools omit. Explains what "FGAA" means and flags unrecognised lab names. Routes to the lab; does not verify the report itself.
list_gem_termsread-onlyList the gemmological terms available in The Gem Lexicon, optionally filtered to one subject section. Use this to discover what can be defined before calling define_gem_term.
sapphire_price_guideread-onlyWhat natural sapphires actually cost per carat in Australian dollars, from Ministry of Gems' published price guide: bands by origin (Australian, Ceylon) and size, with the stone count behind each band and the date the bands were computed. Answers "how much is a 2 carat sapphire" honestly, as a house guide rather than a market index.
search_gem_inventoryread-onlySearch the live Ministry of Gems catalogue of natural loose gemstones and finished jewellery — Ceylon and Australian sapphires, rubies, spinels, Australian opals, emeralds and more — with prices in Australian dollars, availability, carat weight and a link to buy. Filter by type (gems, ring, pendant, earrings), carat range and price range. Every loose gem returned carries a verifiable Digital Gemstone Passport.
search_gem_knowledgeread-onlyKeyword search across the Ministry of Gems gemmological reference library — 215 lexicon definitions and 25 full-length buyer's handbooks, searched in full text across every section. Returns ranked results, each with the matched passage and a citable URL that deep-links to the chapter.
verify_gem_passportread-onlyCryptographically verify a Ministry of Gems Digital Gemstone Passport by stone ID. Recomputes the SHA-256 digest of the signed record and checks its Ed25519 (EdDSA) signature against the house public key, then returns the attested record: species, carat, dimensions, cut, colour, clarity, origin, treatment and certificate status. Use when a buyer asks whether a stone or its passport is genuine, or before quoting any fact about a specific Ministry of Gems stone.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "au.com.ministryofgems/gemmology",
  "icons": [
    {
      "src": "https://ministryofgems.com.au/cdn/shop/files/ministry_of_gems_site_icon_512x512_a748ef92-bd7b-4075-8ceb-3eac6ab70e9a.png",
      "sizes": [
        "512x512"
      ],
      "mimeType": "image/png"
    }
  ],
  "title": "Ministry of Gems — Gemmology & Gemstones",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mog-concierge.33guruge.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "2.0.1",
  "websiteUrl": "https://ministryofgems.com.au/pages/ai-index",
  "description": "Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification."
}