Crystal Suppliers MCP Server

by ziyuant222 Your server? Claim it

not responding

Crystal Suppliers MCP is listed as active in the registry but did not answer our last check. It exposes 6 tools. Last commit 30 Jul 2026.

Search verified crystal bracelets and source beads, accessories, and raw materials.

Uptime history 47 days of history · worst day 0%

47 days agonow

21.7%

Uptime 24h

20 of 92 checks

Tools

read from the server

453 ms

Response time

average over 24h

Stars

last commit 30 Jul 2026

Crystal Suppliers MCP does not always answer

Over the last week it answered 22.2% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add crystal-suppliers-mcp --transport http https://ktcrystals.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "crystal-suppliers-mcp": {
      "url": "https://ktcrystals.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.crystal-suppliers-mcp]
url = "https://ktcrystals.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "crystal-suppliers-mcp": {
      "url": "https://ktcrystals.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "crystal-suppliers-mcp": {
      "url": "https://ktcrystals.com/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

crystal

crystal_build_procurement_shortlist

Build a deterministic shortlist across requested crystal categories. Verified products are limited to catalog bracelets; other categories remain clearly separated advisory items.

crystal_get_product

Get one verified bracelet by exact SKU or slug, including materials, image, source URL, related SKUs, and explicit manual-confirmation status for commercial terms.

crystal_get_sourcing_guidance

Get source-linked procurement checks for bracelets, loose beads, accessories, or raw materials. Adjacent categories are advisory only and never return invented inventory or SKUs.

crystal_list_materials

List normalized materials and real SKU counts from the current verified bracelet catalog. Counts do not claim coverage for loose beads, components, or raw crystals.

crystal_prepare_inquiry

Validate any supplied bracelet SKUs and draft an English wholesale inquiry. This read-only tool never sends, stores, or submits buyer data and never invents price, MOQ, stock, lead time, or certificates.

crystal_search_products

Search the verified 104-SKU bracelet catalog by SKU, name, material, or theme. Beads, accessories, and raw materials return advisory-only coverage with no fabricated SKUs. Commercial terms always require manual confirmation.

Endpoints

URL	Transport	State	Latency	Checked
https://ktcrystals.com/mcp	streamable-http	answering	237 ms	2 min ago

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Crystal Suppliers MCP — questions

Answers built from our own checks of this server.

What can Crystal Suppliers MCP do?

It exposes 6 tools, read directly from the server on our last check. Among them: crystal_build_procurement_shortlist, crystal_get_product, crystal_get_sourcing_guidance, crystal_list_materials, crystal_prepare_inquiry, crystal_search_products. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Crystal Suppliers MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 20 of 92 checks got a reply (21.7%), average response time 453 ms. The bar chart above shows every period we have measured.

The registry lists Crystal Suppliers MCP as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Crystal Suppliers MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Crystal Suppliers MCP need an API key?

No. Crystal Suppliers MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Crystal Suppliers MCP?

It answers our handshake in 453 ms on average, which is faster than 32% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Crystal Suppliers MCP open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.