PRISM · MCP APPS DEMO
A shop you can talk to.
Discover real product snapshots. Adjust the filters through conversation. Compare, then place a synthetic order — no charge.
Open browser preview →Connect in ChatGPT
- Open chatgpt.com/plugins. Select the plus button, then Add custom MCP server. Account and workspace policies apply.
- Name it “Galaxus demo”. Enter the HTTPS MCP server URL below, select No authentication, review the warning and select Create as a plugin.
- Review the 12 discovered tools. In a new chat, type @ and select the plugin. Ask: “Find wireless noise-cancelling in-ear headphones for studying and the train.”
- Then say: “Adjust the filters, I’m a student.”
https://galaxus.prism.mvps.ch/mcpKeep the returned session ID across turns. It is a private capability for this synthetic session. Cart, orders and follows persist in Postgres.
What this demonstrates
Six observed products and source photos. A shared revisioned session, deterministic filters, stored cart, idempotent receipts and original audio guides.
Prices are frozen observations from 31 October 2026. Inventory, shipping and purchases are simulated. No Galaxus account or card is needed. This is an unofficial demonstration, with Arial as a disclosed font fallback.
Actual ChatGPT rendering and MCP Events push require host account access. A browser preview verifies presentation only. Following audio saves a preference; it does not wake an agent.