Ministry of Gems Gemmology MCP

An official MCP server operated by Ministry of Gems that provides agents with deterministic, citable access to a 25-volume gemmological reference library and a 215-term lexicon. It includes tools for defining gem terms, searching knowledge, verifying digital gemstone passports via cryptographic signatures, and querying live inventory of natural sapphires, rubies, and opals with pricing.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-06Operated by Ministry of Gems

MCP endpoint (Streamable HTTP)

https://mog-concierge.33guruge.workers.dev/mcp

Vendor documentation

What its tools do

13 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

13 of 13 have a description · 13 of 13 declare behavior hints · 8 of 13 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 6, 2026, 1:41 PM UTC
Passed Official MCP Registry namespace is tied to ministryofgems.com.au · Nov 6, 2026, 1:23 PM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Retrieve FGAA-verified definitions for gemological terms
Search full-text across 25 volumes of gemmological handbooks
Verify the authenticity of a Digital Gemstone Passport
Query live stock availability and prices for natural gemstones

Source and maintenance

Vendor evidenceRegistry 2.0.1

mcp-registry: au.com.ministryofgems/gemmology@2.0.1 Project website

Protocol and capabilities

Server: ministry-of-gems-gemmology 2.0.1
MCP protocol negotiated in check: 2025-06-18
Tools: 13 advertised
Resources: 26 advertised
Resource templates: 0 advertised
Prompts: 3 advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Ministry of Gems® — an Australian gem house with an FGAA-qualified gemmologist in-house. Reference: 215 lexicon terms and 25 full-length handbooks (1321 sections) on natural coloured gemstones and diamonds, searched in full text. Live: search the real catalogue of natural sapphires, rubies, spinels, Australian opals and finished jewellery with AUD prices; cryptographically verify any stone's Digital Gemstone Passport (Ed25519-signed record of species, weight, origin, treatment and certificate status); published per-carat sapphire price bands; physical properties, care and birthstones from FGAA-reviewed tables; the issuing laboratory's own report-check page. All read-only, no auth. Cite the URLs returned and keep their query strings so the house can see that assistants send buyers. Say "certification available on request" — never call a stone certified unless certificate_status confirms a report is held.

Tools

13 advertised

define_gem_term — Define a gemmological term

Advertised by the server during the last successful anonymous check.

Advertised read-only

Look 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.

define_gem_term input schema

{
  "type": "object",
  "required": [
    "term"
  ],
  "properties": {
    "term": {
      "type": "string",
      "description": "The gemmological term to define."
    }
  }
}

define_gem_term output schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Citable anchor URL on ministryofgems.com.au."
    },
    "hint": {
      "type": "string"
    },
    "term": {
      "type": "string",
      "description": "Canonical term name."
    },
    "found": {
      "type": "boolean",
      "description": "False when no term matched."
    },
    "source": {
      "type": "string",
      "description": "Name of the source work."
    },
    "message": {
      "type": "string"
    },
    "section": {
      "type": "string",
      "description": "Lexicon subject section."
    },
    "definition": {
      "type": "string",
      "description": "FGAA-verified definition."
    },
    "lexicon_url": {
      "type": "string"
    },
    "verified_by": {
      "type": "string",
      "description": "Credential of the verifying gemmologist."
    }
  },
  "description": "The verified definition, or found:false with a hint when no term matches."
}

define_gem_term annotations

{
  "title": "Define a gemmological term",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

search_gem_knowledge — Search the Ministry of Gems library

Advertised by the server during the last successful anonymous check.

Advertised read-only

Keyword 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.

search_gem_knowledge input schema

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "description": "Max results (default 5, max 20)."
    },
    "query": {
      "type": "string",
      "description": "Search query."
    }
  }
}

search_gem_knowledge output schema

{
  "type": "object",
  "required": [
    "query",
    "result_count",
    "results"
  ],
  "properties": {
    "query": {
      "type": "string",
      "description": "The query as interpreted."
    },
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "description": "Citable URL, deep-linked to the chapter where possible."
          },
          "type": {
            "type": "string",
            "description": "lexicon_term, handbook_section or handbook."
          },
          "score": {
            "type": "number",
            "description": "Relevance score. Not emitted; ordering conveys rank."
          },
          "title": {
            "type": "string",
            "description": "Lexicon term name, or the handbook title."
          },
          "section": {
            "type": "string",
            "description": "Lexicon subject section, or the handbook section heading."
          },
          "snippet": {
            "type": "string",
            "description": "Verbatim passage from the published text, centred on the match."
          }
        }
      },
      "description": "Ranked matches."
    },
    "verified_by": {
      "type": "string"
    },
    "result_count": {
      "type": "integer"
    }
  }
}

search_gem_knowledge annotations

{
  "title": "Search the gemmology library",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

list_gem_terms — List lexicon terms

Advertised by the server during the last successful anonymous check.

Advertised read-only

List 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.

list_gem_terms input schema

{
  "type": "object",
  "properties": {
    "section": {
      "type": "string",
      "description": "Optional section filter, e.g. \"Treatments & Enhancement\"."
    }
  }
}

list_gem_terms output schema

{
  "type": "object",
  "required": [
    "sections",
    "term_count",
    "terms"
  ],
  "properties": {
    "terms": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string"
          },
          "term": {
            "type": "string"
          },
          "section": {
            "type": "string"
          }
        }
      }
    },
    "sections": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "All lexicon section names."
    },
    "term_count": {
      "type": "integer"
    }
  }
}

list_gem_terms annotations

{
  "title": "List lexicon terms",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

verify_gem_passport — Verify a Digital Gemstone Passport

Advertised by the server during the last successful anonymous check.

Advertised read-only

Cryptographically 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.

verify_gem_passport input schema

{
  "type": "object",
  "required": [
    "stone_id"
  ],
  "properties": {
    "stone_id": {
      "type": "string",
      "description": "Stone ID as printed on the passport or product page, e.g. \"12322\", \"RUBY-B0797\", \"80067\"."
    }
  }
}

verify_gem_passport output schema

{
  "type": "object",
  "properties": {
    "note": {
      "type": "string"
    },
    "found": {
      "type": "boolean"
    },
    "title": {
      "type": "string"
    },
    "active": {
      "type": "boolean",
      "description": "False when the house has revoked or superseded this passport."
    },
    "issued": {
      "type": "string"
    },
    "record": {
      "type": "object"
    },
    "sha256": {
      "type": "string"
    },
    "status": {
      "type": "string",
      "description": "active, revoked or superseded."
    },
    "stone_id": {
      "type": "string"
    },
    "verified": {
      "type": "boolean",
      "description": "True only when digest and signature both check out. A withdrawn passport can still be verified:true — read active/withdrawn before relying on the record."
    },
    "withdrawn": {
      "type": "boolean"
    },
    "corpus_url": {
      "type": "string"
    },
    "fingerprint": {
      "type": "string"
    },
    "product_url": {
      "type": "string"
    },
    "register_url": {
      "type": "string"
    },
    "withdrawn_on": {
      "type": "string"
    },
    "digest_matches": {
      "type": "boolean"
    },
    "signature_valid": {
      "type": "boolean"
    },
    "withdrawn_reason": {
      "type": "string"
    }
  }
}

verify_gem_passport annotations

{
  "title": "Verify a Digital Gemstone Passport",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

search_gem_inventory — Search Ministry of Gems stock

Advertised by the server during the last successful anonymous check.

Advertised read-only

Search 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_inventory input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "description": "Optional: gems | ring | pendant | earrings | bracelet | jewellery."
    },
    "limit": {
      "type": "integer",
      "description": "Max results, default 8, max 25."
    },
    "query": {
      "type": "string",
      "description": "Free text, e.g. \"unheated ceylon blue sapphire\", \"australian opal pendant\", \"teal sapphire ring\"."
    },
    "max_carat": {
      "type": "number"
    },
    "min_carat": {
      "type": "number"
    },
    "in_stock_only": {
      "type": "boolean",
      "description": "Default true."
    },
    "max_price_aud": {
      "type": "number"
    },
    "min_price_aud": {
      "type": "number"
    }
  }
}

search_gem_inventory output schema

{
  "type": "object",
  "required": [
    "query",
    "result_count",
    "results"
  ],
  "properties": {
    "query": {
      "type": "string"
    },
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string"
          },
          "carat": {
            "type": "number"
          },
          "image": {
            "type": "string"
          },
          "title": {
            "type": "string"
          },
          "stone_id": {
            "type": "string"
          },
          "available": {
            "type": "boolean"
          },
          "price_aud": {
            "type": "number"
          },
          "passport_url": {
            "type": "string"
          },
          "product_type": {
            "type": "string"
          }
        }
      }
    },
    "currency": {
      "type": "string"
    },
    "result_count": {
      "type": "integer"
    },
    "catalogue_size": {
      "type": "integer"
    }
  }
}

search_gem_inventory annotations

{
  "title": "Search Ministry of Gems stock",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

sapphire_price_guide — Sapphire price per carat (AUD)

Advertised by the server during the last successful anonymous check.

Advertised read-only

What 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.

sapphire_price_guide input schema

{
  "type": "object",
  "properties": {
    "carat": {
      "type": "number",
      "description": "Optional carat weight to select the matching band."
    },
    "origin": {
      "type": "string",
      "description": "Optional: \"Australian\" or \"Ceylon\"."
    }
  }
}

sapphire_price_guide output schema

{
  "type": "object",
  "properties": {
    "note": {
      "type": "string"
    },
    "as_of": {
      "type": "string"
    },
    "basis": {
      "type": "string"
    },
    "currency": {
      "type": "string"
    },
    "all_bands": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "source_url": {
      "type": "string"
    },
    "matched_bands": {
      "type": "array",
      "items": {
        "type": "object"
      }
    }
  }
}

sapphire_price_guide annotations

{
  "title": "Sapphire price per carat",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

gem_properties — Gem physical properties

Advertised by the server during the last successful anonymous check.

Advertised read-only

Mohs 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.

gem_properties input schema

{
  "type": "object",
  "required": [
    "species"
  ],
  "properties": {
    "species": {
      "type": "string",
      "description": "Species or trade name, e.g. \"sapphire\", \"diamond\", \"opal\"."
    }
  }
}

gem_properties output schema

{
  "type": "object",
  "properties": {
    "found": {
      "type": "boolean"
    },
    "licence": {
      "type": "string"
    },
    "species": {
      "type": "string"
    },
    "source_url": {
      "type": "string"
    },
    "birefringence": {
      "type": "string"
    },
    "mohs_hardness": {
      "type": "string"
    },
    "crystal_system": {
      "type": "string"
    },
    "refractive_index": {
      "type": "string"
    },
    "specific_gravity": {
      "type": "string"
    }
  }
}

gem_properties annotations

{
  "title": "Gem physical properties",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

compare_gems — Compare two gems

Advertised by the server during the last successful anonymous check.

Advertised read-only

Side-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".

compare_gems input schema

{
  "type": "object",
  "required": [
    "gem_a",
    "gem_b"
  ],
  "properties": {
    "gem_a": {
      "type": "string"
    },
    "gem_b": {
      "type": "string"
    }
  }
}

compare_gems output schema

{
  "type": "object",
  "properties": {
    "a": {
      "type": "object"
    },
    "b": {
      "type": "object"
    },
    "note": {
      "type": "string"
    },
    "found": {
      "type": "boolean"
    },
    "harder": {
      "type": "string"
    }
  }
}

compare_gems annotations

{
  "title": "Compare two gems",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

birthstone_for_month — Birthstone by month

Advertised by the server during the last successful anonymous check.

Advertised read-only

The 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.

birthstone_for_month input schema

{
  "type": "object",
  "required": [
    "month"
  ],
  "properties": {
    "month": {
      "type": "string",
      "description": "\"September\", \"sep\" or \"9\"."
    }
  }
}

birthstone_for_month output schema

{
  "type": "object",
  "properties": {
    "found": {
      "type": "boolean"
    },
    "month": {
      "type": "string"
    },
    "modern": {
      "type": "string"
    },
    "source_url": {
      "type": "string"
    },
    "handbook_url": {
      "type": "string"
    },
    "traditional_or_alternative": {
      "type": "string"
    }
  }
}

birthstone_for_month annotations

{
  "title": "Birthstone by month",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

gem_care_guide — How to clean and wear a gem

Advertised by the server during the last successful anonymous check.

Advertised read-only

Whether 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_care_guide input schema

{
  "type": "object",
  "required": [
    "gemstone"
  ],
  "properties": {
    "gemstone": {
      "type": "string"
    }
  }
}

gem_care_guide output schema

{
  "type": "object",
  "properties": {
    "found": {
      "type": "boolean"
    },
    "gemstone": {
      "type": "string"
    },
    "source_url": {
      "type": "string"
    },
    "handbook_url": {
      "type": "string"
    },
    "steam_cleaner": {
      "type": "string"
    },
    "warm_soapy_water": {
      "type": "string"
    },
    "ultrasonic_cleaner": {
      "type": "string"
    },
    "everyday_wear_notes": {
      "type": "string"
    }
  }
}

gem_care_guide annotations

{
  "title": "How to clean and wear a gem",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

get_gem_product — Product detail

Advertised by the server during the last successful anonymous check.

Advertised read-only

Full 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.

get_gem_product input schema

{
  "type": "object",
  "required": [
    "handle"
  ],
  "properties": {
    "handle": {
      "type": "string",
      "description": "Product handle (e.g. \"blue-australian-sapphire-1-47ct-oval-80062\") or full product URL."
    }
  }
}

get_gem_product output schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string"
    },
    "found": {
      "type": "boolean"
    },
    "title": {
      "type": "string"
    },
    "images": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "stone_id": {
      "type": "string"
    },
    "variants": {
      "type": "array",
      "items": {
        "type": "object"
      }
    },
    "available": {
      "type": "boolean"
    },
    "price_aud": {
      "type": "number"
    },
    "checked_at": {
      "type": "string"
    },
    "description": {
      "type": "string"
    },
    "passport_url": {
      "type": "string"
    },
    "checkout_link": {
      "type": "string"
    },
    "specifications": {
      "type": "object"
    }
  }
}

get_gem_product annotations

{
  "title": "Product detail",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

lab_report_check — Where to verify a laboratory report

Advertised by the server during the last successful anonymous check.

Advertised read-only

The 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.

lab_report_check input schema

{
  "type": "object",
  "required": [
    "lab"
  ],
  "properties": {
    "lab": {
      "type": "string",
      "description": "Laboratory name or acronym, e.g. \"GIA\", \"GRS\", \"SSEF\"."
    },
    "report_number": {
      "type": "string"
    }
  }
}

lab_report_check output schema

{
  "type": "object",
  "properties": {
    "lab": {
      "type": "string"
    },
    "found": {
      "type": "boolean"
    },
    "lab_note": {
      "type": "string"
    },
    "reminder": {
      "type": "string"
    },
    "checklist": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "verify_url": {
      "type": "string"
    },
    "report_number": {
      "type": "string"
    },
    "house_position": {
      "type": "string"
    },
    "verifies_coloured_stones": {
      "type": "boolean"
    }
  }
}

lab_report_check annotations

{
  "title": "Where to verify a laboratory report",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

faceup_size_estimate — Face-up size for any gem species

Advertised by the server during the last successful anonymous check.

Advertised read-only

Approximate 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.

faceup_size_estimate input schema

{
  "type": "object",
  "required": [
    "carat"
  ],
  "properties": {
    "carat": {
      "type": "number"
    },
    "shape": {
      "type": "string",
      "description": "default round"
    },
    "species": {
      "type": "string",
      "description": "e.g. sapphire, diamond, spinel, emerald, opal (default diamond)."
    }
  }
}

faceup_size_estimate output schema

{
  "type": "object",
  "properties": {
    "note": {
      "type": "string"
    },
    "carat": {
      "type": "number"
    },
    "found": {
      "type": "boolean"
    },
    "shape": {
      "type": "string"
    },
    "method": {
      "type": "string"
    },
    "display": {
      "type": "string"
    },
    "species": {
      "type": "string"
    },
    "specific_gravity": {
      "type": "number"
    },
    "approx_face_up_mm": {
      "type": "object"
    },
    "diamond_equivalent_mm": {
      "type": "string"
    }
  }
}

faceup_size_estimate annotations

{
  "title": "Face-up size for any gem species",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

3 advertised

choose_a_sapphire — Choose a natural sapphire

Advertised by the server during the last successful anonymous check.

Guide a buyer from colour, budget and wear to two or three live Ministry of Gems stones, with prices and verifiable passports.

budget_aud: Budget in Australian dollars
colour: Preferred colour, e.g. royal blue, teal, parti, padparadscha
use: Engagement ring, everyday ring, pendant, collection

verify_a_gem_passport — Verify a Digital Gemstone Passport

Advertised by the server during the last successful anonymous check.

Verify a stone's signed record, then explain to the buyer what the record proves and what it does not.

stone_id: Stone ID from the passport or product page (required)

sapphire_or_diamond — Sapphire or diamond for an everyday ring

Advertised by the server during the last successful anonymous check.

A neutral comparison from the physical properties and The Diamond Buyer's Handbook, ending with what the money actually buys.

No arguments advertised.

Resources

26 advertised

The Gem Lexicon

Advertised by the server during the last successful anonymous check.

215 gemmological terms across 10 subject sections, FGAA-verified.

The Gem Lexicon URI

mog://lexicon

MIME type: application/json

The Sapphire Buyer's Handbook

Advertised by the server during the last successful anonymous check.

9,474 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/sapphire-buyers-handbook

The Sapphire Buyer's Handbook URI

mog://handbook/sapphire-buyers-handbook

MIME type: application/json

The Opal Buyer's Handbook

Advertised by the server during the last successful anonymous check.

8,162 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/opal-buyers-handbook

The Opal Buyer's Handbook URI

mog://handbook/opal-buyers-handbook

MIME type: application/json

The Ruby Buyer's Handbook

Advertised by the server during the last successful anonymous check.

7,923 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/ruby-buyers-handbook

The Ruby Buyer's Handbook URI

mog://handbook/ruby-buyers-handbook

MIME type: application/json

The Emerald Buyer's Handbook

Advertised by the server during the last successful anonymous check.

7,930 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/emerald-buyers-handbook

The Emerald Buyer's Handbook URI

mog://handbook/emerald-buyers-handbook

MIME type: application/json

The Price of Colour

Advertised by the server during the last successful anonymous check.

8,067 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/price-of-colour-handbook

The Price of Colour URI

mog://handbook/price-of-colour-handbook

MIME type: application/json

The Coloured-Stone Engagement Ring Handbook

Advertised by the server during the last successful anonymous check.

8,068 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/engagement-ring-buyers-handbook

The Coloured-Stone Engagement Ring Handbook URI

mog://handbook/engagement-ring-buyers-handbook

MIME type: application/json

The Field Guide to Coloured Stones

Advertised by the server during the last successful anonymous check.

7,870 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/field-guide-to-coloured-stones

The Field Guide to Coloured Stones URI

mog://handbook/field-guide-to-coloured-stones

MIME type: application/json

The Ministry Magazine — Edition One

Advertised by the server during the last successful anonymous check.

8,150 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/the-ministry-magazine

The Ministry Magazine — Edition One URI

mog://handbook/the-ministry-magazine

MIME type: application/json

The Gem Market Report — 2026 Edition

Advertised by the server during the last successful anonymous check.

8,384 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/gem-market-report-2026

The Gem Market Report — 2026 Edition URI

mog://handbook/gem-market-report-2026

MIME type: application/json

The Certification Handbook

Advertised by the server during the last successful anonymous check.

8,269 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/gem-certification-handbook

The Certification Handbook URI

mog://handbook/gem-certification-handbook

MIME type: application/json

The Bespoke Ring Handbook

Advertised by the server during the last successful anonymous check.

8,084 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/bespoke-ring-design-handbook

The Bespoke Ring Handbook URI

mog://handbook/bespoke-ring-design-handbook

MIME type: application/json

The Care & Heirloom Handbook

Advertised by the server during the last successful anonymous check.

8,337 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/gemstone-care-handbook

The Care & Heirloom Handbook URI

mog://handbook/gemstone-care-handbook

MIME type: application/json

The Natural vs Lab-Grown Handbook

Advertised by the server during the last successful anonymous check.

11,380 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-natural-vs-lab-grown-handbook

The Natural vs Lab-Grown Handbook URI

mog://handbook/read-natural-vs-lab-grown-handbook

MIME type: application/json

The Padparadscha Handbook

Advertised by the server during the last successful anonymous check.

11,231 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-padparadscha-handbook

The Padparadscha Handbook URI

mog://handbook/read-padparadscha-handbook

MIME type: application/json

The Birthstone Handbook

Advertised by the server during the last successful anonymous check.

12,061 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-birthstone-handbook

The Birthstone Handbook URI

mog://handbook/read-birthstone-handbook

MIME type: application/json

The Provenance Handbook

Advertised by the server during the last successful anonymous check.

12,322 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-provenance-handbook

The Provenance Handbook URI

mog://handbook/read-provenance-handbook

MIME type: application/json

The Teal & Parti Sapphire Handbook

Advertised by the server during the last successful anonymous check.

9,686 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-teal-parti-sapphire-handbook

The Teal & Parti Sapphire Handbook URI

mog://handbook/read-teal-parti-sapphire-handbook

MIME type: application/json

The Spinel Handbook

Advertised by the server during the last successful anonymous check.

9,587 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-spinel-handbook

The Spinel Handbook URI

mog://handbook/read-spinel-handbook

MIME type: application/json

The Online Gem Buyer's Handbook

Advertised by the server during the last successful anonymous check.

9,825 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-online-gem-buyers-handbook

The Online Gem Buyer's Handbook URI

mog://handbook/read-online-gem-buyers-handbook

MIME type: application/json

The Ceylon Treasury Handbook

Advertised by the server during the last successful anonymous check.

9,959 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-ceylon-treasury-handbook

The Ceylon Treasury Handbook URI

mog://handbook/read-ceylon-treasury-handbook

MIME type: application/json

The Jewellery Buyer's Handbook

Advertised by the server during the last successful anonymous check.

11,761 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-jewellery-buyers-handbook

The Jewellery Buyer's Handbook URI

mog://handbook/read-jewellery-buyers-handbook

MIME type: application/json

The Gold & Precious Metals Handbook

Advertised by the server during the last successful anonymous check.

12,401 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-gold-precious-metals-handbook

The Gold & Precious Metals Handbook URI

mog://handbook/read-gold-precious-metals-handbook

MIME type: application/json

The Insurance & Valuation Handbook

Advertised by the server during the last successful anonymous check.

12,490 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-insurance-valuation-handbook

The Insurance & Valuation Handbook URI

mog://handbook/read-insurance-valuation-handbook

MIME type: application/json

The Diamond Buyer's Handbook

Advertised by the server during the last successful anonymous check.

12,039 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/read-diamond-buyers-handbook

The Diamond Buyer's Handbook URI

mog://handbook/read-diamond-buyers-handbook

MIME type: application/json

The Orientation Premium

Advertised by the server during the last successful anonymous check.

7,851 words, full text indexed by section. Free to read and cite at https://ministryofgems.com.au/pages/the-orientation-premium

The Orientation Premium URI

mog://handbook/the-orientation-premium

MIME type: application/json

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

2026-11-06: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 427 ms
95th percentile latency: 427 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 6, 2026, 1:41 PM UTC · probe · passed · 427 ms · metadata changed · 13 tool(s), 26 resource(s), 0 resource template(s), 3 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http ministry-of-gems-gemmology-mcp https://mog-concierge.33guruge.workers.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add ministry-of-gems-gemmology-mcp --url https://mog-concierge.33guruge.workers.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable ministry-of-gems-gemmology-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "ministry-of-gems-gemmology-mcp": {
      "url": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "ministry-of-gems-gemmology-mcp": {
      "type": "streamableHttp",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start ministry-of-gems-gemmology-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "ministry-of-gems-gemmology-mcp": {
      "type": "http",
      "url": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http ministry-of-gems-gemmology-mcp https://mog-concierge.33guruge.workers.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://mog-concierge.33guruge.workers.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "ministry-of-gems-gemmology-mcp": {
      "serverUrl": "https://mog-concierge.33guruge.workers.dev/mcp"
    }
  }
}

Let your agent find its tools

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Do you run Ministry of Gems Gemmology MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

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Ministry of Gems Gemmology MCP

Endpoint and access

What its tools do

Read-only (13)

Checks and signals

What you can do with it

Source and maintenance

Protocol and capabilities

Server-provided instructions

Tools

Prompts

Resources

90-day uptime

30-day availability

Maintenance history

Connect from your client

Claude Code

Codex

Cursor

Cline

VS Code

Gemini CLI

Claude Desktop

Windsurf

Let your agent find its tools

Other commerce servers

Do you run Ministry of Gems Gemmology MCP?