# Crystal Suppliers MCP (remote · ktcrystals.com)

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

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `ktcrystals.com`: 66/100 (this document), [markdown](https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals.md), [page](https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals)
- oci · `ghcr.io/ziyuant222/crystal-suppliers-mcp:0.1.0`: 9/100, [markdown](https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ghcr-io-ziyuant222-crystal-suppliers-mcp-0-1-0.md), [page](https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ghcr-io-ziyuant222-crystal-suppliers-mcp-0-1-0)

## Channel facts

- Endpoint: `https://ktcrystals.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 49/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 586 tokens (~97/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http ziyuant222-crystal-suppliers-mcp https://ktcrystals.com/mcp
```

### Codex

```toml
[mcp_servers.ziyuant222-crystal-suppliers-mcp]
url = "https://ktcrystals.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ziyuant222-crystal-suppliers-mcp": {
      "type": "remote",
      "url": "https://ktcrystals.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ziyuant222-crystal-suppliers-mcp --url https://ktcrystals.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ziyuant222-crystal-suppliers-mcp:
    url: "https://ktcrystals.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "ziyuant222-crystal-suppliers-mcp": {
      "type": "http",
      "url": "https://ktcrystals.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 64, +6)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 58)

First indexed and scored.

## MCP tools (6)

### `crystal_search_products` (~111 tokens)

Search Crystal 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.

Input parameters:

- `benefitTags` (array)
- `category` (string)
- `channel` (string)
- `cursor` (string)
- `limit` (integer)
- `materials` (array)
- `query` (string)
- `useCases` (array)

Output parameters:

- `coverage` (string)
- `hasMore` (boolean)
- `nextCursor`
- `products` (array)
- `sourceUrls` (array)
- `totalCount` (integer)
- `warnings` (array)

### `crystal_get_product` (~55 tokens)

Get Crystal 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.

Input parameters:

- `sku` (string)
- `slug` (string)

Output parameters:

- `coverage` (string)
- `product` (object)
- `relatedProducts` (array)
- `sourceUrls` (array)
- `warnings` (array)

### `crystal_list_materials` (~60 tokens)

List Bracelet 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.

Input parameters:

- `cursor` (string)
- `limit` (integer)
- `query` (string)

Output parameters:

- `coverage` (string)
- `hasMore` (boolean)
- `materials` (array)
- `nextCursor`
- `sourceUrls` (array)
- `totalCount` (integer)
- `warnings` (array)

### `crystal_get_sourcing_guidance` (~88 tokens)

Get Crystal 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.

Input parameters:

- `category` (string, required)
- `channel` (string)
- `contentAssets` (array)
- `destination` (string)
- `packaging` (array)
- `proofRequirements` (array)

Output parameters:

- `category` (string)
- `checklist` (array)
- `comparisonCriteria` (array)
- `coverage` (string)
- `requiresManualConfirmation` (array)
- `shortAnswer` (string)
- `sourceUrls` (array)
- `warnings` (array)

### `crystal_build_procurement_shortlist` (~125 tokens)

Build Crystal Procurement Shortlist

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

Input parameters:

- `categories` (array, required)
- `channel` (string)
- `colors` (array)
- `contentAssets` (array)
- `cursor` (string)
- `destination` (string)
- `limit` (integer)
- `materials` (array)
- `packaging` (array)
- `targetQuantity` (string)
- `targetTimeline` (string)
- `useCases` (array)

Output parameters:

- `advisoryItems` (array)
- `coverage` (string)
- `hasMore` (boolean)
- `nextCursor`
- `recommendedInquiryFields` (array)
- `sourceUrls` (array)
- `totalCount` (integer)
- `verifiedProducts` (array)
- `warnings` (array)

### `crystal_prepare_inquiry` (~147 tokens)

Prepare Crystal Wholesale 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.

Input parameters:

- `channel` (string)
- `company` (string)
- `contentAssets` (array)
- `country` (string)
- `email` (string)
- `materials` (array)
- `name` (string)
- `packaging` (string)
- `proofRequirements` (array)
- `quantity` (string)
- `requirements` (string)
- `skus` (array)
- `targetTimeline` (string)

Output parameters:

- `body` (string)
- `classification` (string)
- `coverage` (string)
- `draftOnly` (boolean)
- `missingFields` (array)
- `sourceUrls` (array)
- `subject` (string)
- `submissionTarget` (string)
- `validSkus` (array)
- `warnings` (array)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals#diagnostics

## Score history

- 2026-08-03: 66
- 2026-08-02: 65
- 2026-08-01: 65
- 2026-07-31: 64
- 2026-07-30: 58

## Links

- Remote endpoint: https://ktcrystals.com/mcp
- Repository: https://github.com/ziyuant222/crystal-suppliers-mcp
- Website: https://ktcrystals.com/resources
- Changelog RSS feed: https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ziyuant222-crystal-suppliers-mcp/ktcrystals