Cassandra shop MCP Server

by cassandrawake Your server? Claim it

not responding

Cassandra shop is listed as active in the registry but did not answer our last check. It exposes 5 tools. Last commit 14 Oct 2026.

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

Uptime history 26 days of history · worst day 0%

26 days agonow

0.0%

Uptime 24h

0 of 91 checks

Tools

read from the server

129 ms

Response time

average over 24h

Stars

last commit 14 Oct 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 14 October 2026. No other catalogue keeps this.

14 Oct a tool changed version

Cassandra shop does not always answer

Over the last week it answered 28.0% 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 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

Settings → Connectors → Add custom connector, then paste this address

https://cassandrawake.com/api/mcp

~/.codex/config.toml

[mcp_servers.shop]
url = "https://cassandrawake.com/api/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 5

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

ask

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.

endpoint

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 conformance report.

products

list_products

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

shop

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.

terms

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 list_products. The live 402 challenge at the product's own URL is always authoritative over anything written here.

Endpoints

URL	Transport	State	Latency	Checked
https://cassandrawake.com/api/mcp	streamable-http	answering	129 ms	13 min ago

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Cassandra shop — questions

Answers built from our own checks of this server.

What can Cassandra shop do?

It exposes 5 tools, read directly from the server on our last check. Among them: ask_cassandra, check_endpoint, get_terms, list_products, shop_vitals. 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 Cassandra shop working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 129 ms. The bar chart above shows every period we have measured.

The registry lists Cassandra shop 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 Cassandra shop?

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

Does Cassandra shop need an API key?

No. Cassandra shop completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

Is Cassandra shop open source?

The code is open source: it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at cassandrawake.com, which runs on its operator's own terms.