{"type":"firestarter.listing","listing":{"id":"lst_kC5H7X6d","product_name":"Tumbler","category":"Cafe","description":"Similar in size to our mug, except without a handle, these hand-thrown stoneware tumblers will become your favorite go-to water or cocktail glass. They are made with our signature Dark Brown stoneware and dipped in white glaze.\n3”W x 4”H - 12 oz.\nTumblers will ship within 5 business days. Learn more about our materials here.","images":["https://cdn.shopify.com/s/files/1/0525/6963/7016/files/CAFE_TUMBLER_DRK-BRN_WHT_F.png?v=1696960341","https://cdn.shopify.com/s/files/1/0525/6963/7016/products/IMG_5294_copy.jpg?v=1696960341","https://cdn.shopify.com/s/files/1/0525/6963/7016/products/CAFE_TUMBLER_TOAST_WHT_F.png?v=1696960341"],"price":42,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:22.559Z"},"share_url":"https://firestarter.network/l/lst_kC5H7X6d","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_kC5H7X6d' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Tumbler' and a budget_max comfortably above $42.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}