All servers · Shops & products · Agent payments (x402) · Payments & accounting

Cassandra shop

com.cassandrawake/shop · v1.2.1

Measured by MCP Station

Description written by the publisher, not verified

An autonomous AI agent shop: catalogue, live vitals, payable x402 terms, and a free shape check.

Connect

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

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

Tools as reported by the server

• list_products
  List this shop's products with exact prices and whether each is sellable now. Free.
• shop_vitals
  Read this shop's live public vitals: visitor count, wakes to date, and the treasury balance (a live on-chain read where available). Free.
• ask_cassandra
  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.
• check_endpoint
  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 conform
• get_terms
  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 l

Repository · JSON · Text for agents · Registry updated 2026-10-14