_ registry / mcp streamable-http · checked 35m ago

crystal-suppliers-mcp-server

https://ktcrystals.com

Registry code: 376244d41649e108

api record

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

from a public catalogue that lists it, not from the operator

endpoint
https://ktcrystals.com/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is crystal-suppliers-mcp-server live?
Yes — it answered the hub's last check (checked 35m ago). It answered 100% of checks over the last 30 days.
Is crystal-suppliers-mcp-server free to use?
Yes — the hub reached it with no key and no payment.
What tools does crystal-suppliers-mcp-server have?
6 tools: crystal_get_product, crystal_get_sourcing_guidance, crystal_build_procurement_shortlist, crystal_prepare_inquiry, crystal_list_materials, crystal_search_products.
Is crystal-suppliers-mcp-server safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
99.7%

90 days 99.8%· all time 99.8%

latency
275ms

last good check

priced tools
0

of 6 tools

_ answered our checks, 90 days 446 checks · signed record
  • degraded → live
  • live → degraded· timeout after 20000ms
  • degraded → live
  • unknown → live
_ what it is for
topic
productivity & business procurement & sourcing
used for
  • search crystal bracelet catalog
  • build a procurement shortlist
  • get sourcing guidance for beads and materials
  • draft a wholesale inquiry
takes → gives
text, data → data, text
tools
6 reads
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

_ what it can do 6 tools
3 open 3 never probed 3 of 6 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • crystal_prepare_inquiry reads open 10h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "skus": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "email": {
      "type": "string",
      "format": "email",
      "pattern": "^(?!\\.)(?!.*\\.\\.)([A-Za-z0-9_'+\\-\\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$",
      "maxLength": 254
    },
    "channel": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "company": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "country": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "quantity": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "materials": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "packaging": {
      "type": "string",
      "maxLength": 500,
      "minLength": 1
    },
    "requirements": {
      "type": "string",
      "maxLength": 500,
      "minLength": 1
    },
    "contentAssets": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "targetTimeline": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "proofRequirements": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    }
  },
  "additionalProperties": false
}
    arguments 89 lines
  • crystal_list_materials reads open 10h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "cursor": {
      "type": "string",
      "maxLength": 1024
    }
  },
  "additionalProperties": false
}
    arguments 22 lines
  • crystal_search_products reads open 14h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "cursor": {
      "type": "string",
      "maxLength": 1024
    },
    "channel": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "category": {
      "enum": [
        "bracelets",
        "beads",
        "accessories",
        "raw_materials"
      ],
      "type": "string",
      "default": "bracelets"
    },
    "useCases": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "materials": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "benefitTags": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    }
  },
  "additionalProperties": false
}
    arguments 64 lines
  • crystal_get_product reads unknown 10h ago

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

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "sku": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "slug": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    }
  },
  "additionalProperties": false
}
    arguments 17 lines
  • crystal_get_sourcing_guidance reads unknown 14h ago

    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.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "category"
  ],
  "properties": {
    "channel": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "category": {
      "enum": [
        "bracelets",
        "beads",
        "accessories",
        "raw_materials"
      ],
      "type": "string"
    },
    "packaging": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "destination": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "contentAssets": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "proofRequirements": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    }
  },
  "additionalProperties": false
}
    arguments 56 lines
  • crystal_build_procurement_shortlist reads unknown 14h ago

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

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "categories"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 20,
      "minimum": 1
    },
    "colors": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "cursor": {
      "type": "string",
      "maxLength": 1024
    },
    "channel": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "useCases": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "materials": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "packaging": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "categories": {
      "type": "array",
      "items": {
        "enum": [
          "bracelets",
          "beads",
          "accessories",
          "raw_materials"
        ],
        "type": "string"
      },
      "maxItems": 4,
      "minItems": 1
    },
    "destination": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "contentAssets": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 160,
        "minLength": 1
      },
      "maxItems": 8
    },
    "targetQuantity": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    },
    "targetTimeline": {
      "type": "string",
      "maxLength": 160,
      "minLength": 1
    }
  },
  "additionalProperties": false
}
    arguments 99 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 376244d41649e108.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/376244d41649e108/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/376244d41649e108/badge.svg)](https://brick.blue/agent/376244d41649e108?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.