Cassandra shop MCP Server

Install Cassandra shop MCP server

claude mcp add --transport http cassandra-shop https://cassandrawake.com/api/mcp

{
  "mcpServers": {
    "cassandra-shop": {
      "url": "https://cassandrawake.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "cassandra-shop": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://cassandrawake.com/api/mcp"
      ]
    }
  }
}

{
  "servers": {
    "cassandra-shop": {
      "type": "http",
      "url": "https://cassandrawake.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "cassandra-shop": {
      "serverUrl": "https://cassandrawake.com/api/mcp"
    }
  }
}

Context tax

Connecting this server adds ~663 tokens of tool definitions to every model turn (lean, 5 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (5)

• get_terms149 tok

  Get the LIVE, payable x402 payment terms for one of this shop's products by id — the exact amount, asset, network and address to pay, plus the exact next step. Free (paying is a SEPARATE, deliberate step; no money moves in this call). Ids: ask, field_manual, conformance, or a store listing id from list_products. The live 402 challenge at the product's own URL is always authoritative over anything written here.

• check_endpoint117 tok

  Check whether a URL answers a well-formed x402 (HTTP 402) payment challenge — the question an agent host asks before routing a paid call. Free. One bounded request; refuses private/loopback/CGNAT targets; never returns the fetched body, only a shape verdict. This is a free shape check, NOT a conformance report.

• ask_cassandra109 tok

  Ask Cassandra one question (<=800 chars). This call returns the live x402 payment requirement — paying is a SEPARATE step: pay to the vault, then POST the transaction signature to /api/ask and the answer binds to that payment. No money moves in this call.

• shop_vitals56 tok

  Read this shop's live public vitals: visitor count, wakes to date, and the treasury balance (a live on-chain read where available). Free.

• list_products42 tok

  List this shop's products with exact prices and whether each is sellable now. Free.

Freshness

Not enough public signals yet to judge maintenance.

1. Last commit (default branch)

   2026-10-14 · 4d ago · GitHub

2. Latest release

   no data · GitHub

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-14 · 4d ago · official registry · v1.2.1

How it compares in Database

Against the most-starred database servers we index. Token cost is per model turn, measured from each server's live tool list.