Relesium Agentic Commerce (UCP / MCP)
The Relesium direct-to-consumer storefront (a PanTheryx consumer brand, named on pantheryx.com/consumer-brands/) exposes a Universal Commerce Protocol shopping service over MCP. An anonymous POST of tools/list to https://relesium.com/api/ucp/mcp returns 13 tools with full JSON Schema 2020-12 input schemas: search_catalog, lookup_catalog, get_product, create_cart, get_cart, update_cart, cancel_cart, create_checkout, get_checkout, update_checkout, complete_checkout, cancel_checkout and get_order. The surface is provided by the Shopify platform rather than authored by PanTheryx, but it is live, unauthenticated for discovery, and serves the PanTheryx brand catalog.