Ministry of Gems — Gemmology & Gemstones
mcp remote · streamable-http · v2.0.1 · source: crawl
https://mog-concierge.33guruge.workers.dev/mcp
Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.
Works
100
Verified Oct 31, 2026 · p50 397 ms · p95 491 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'ministry-of-gems-gemmology' |
| tools_listed | 15 | pass | 13 tools |
| schema_complete | 15 | pass | 13 of 13 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 397 ms |
| latency_p95 | 5 | pass | p95 491 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (13)
| Name | Description | Schema |
|---|---|---|
search_gem_knowledge | 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 res | typed |
list_gem_terms | 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. | typed |
verify_gem_passport | 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 | typed |
define_gem_term | 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. U | typed |
search_gem_inventory | 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 Au | typed |
sapphire_price_guide | 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 | typed |
gem_properties | 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), fro | typed |
compare_gems | 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 di | typed |
birthstone_for_month | 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 | typed |
gem_care_guide | 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 | typed |
get_gem_product | 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 dir | typed |
lab_report_check | 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, incl | typed |
faceup_size_estimate | 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, eme | typed |
Badge
Paste into your README. It updates on every verification.
[](https://app.agent-xm.com/a/au-com-ministryofgems-gemmology)
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