{"name":"Big Star Lights UCP MCP","description":"JSON-RPC MCP endpoint exposing UCP commerce tools.","version":"2026-04-08","endpoint":"https://bigstarlights.com/api/ucp/mcp","transport":"streamable-http","tools":[{"name":"search_catalog","description":"Search the BSL agent-readable product catalog."},{"name":"get_product","description":"Fetch full detail for a single product or variant."},{"name":"create_cart","description":"Create an agent cart with Shopify variant GIDs."},{"name":"get_cart","description":"Fetch the current state of an agent cart."},{"name":"update_cart","description":"Replace cart lines and preview discounts or estimates."},{"name":"create_checkout","description":"Create or proxy a UCP checkout session."},{"name":"get_checkout","description":"Fetch a checkout session state."},{"name":"update_checkout","description":"Update buyer, fulfillment, discount, or payment state."},{"name":"complete_checkout","description":"Complete checkout through Shopify native UCP when authenticated."},{"name":"cancel_checkout","description":"Cancel an active checkout session."},{"name":"get_order","description":"Fetch order status after checkout completion."}],"resources":[{"uri":"https://bigstarlights.com/.well-known/ucp","name":"UCP business profile"},{"uri":"https://bigstarlights.com/llms.txt","name":"Agent summary"},{"uri":"https://bigstarlights.com/llms-full.txt","name":"Full agent instructions"}]}