{"type":"firestarter.listing","listing":{"id":"lst_4N7GLrHI","product_name":"Espresso & Milk Steaming","category":"Events","description":"This class explores the essential techniques and basic equipment required for proper espresso. You will learn how to taste and dial in espresso using the coffee extraction principles learned in Fundamentals of Coffee.  This class will also focus on the concepts and mechanics of proper milk steaming. Well-crafted milk paired with a great shot of espresso creates a delightfully harmonious experience. From whole to skim to non-dairy milks, we will detail the concepts and mechanics of proper steaming and pouring of latte art, followed by hands-on practice. \n2 Hours","images":["https://cdn.shopify.com/s/files/1/2220/0129/products/ceremony-coffee-roasters-intro-barista-workshop_836af2a3-bdf6-4537-839a-d33ac205de7c.jpg?v=1554746277"],"price":50,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:14.718Z"},"share_url":"https://firestarter.network/l/lst_4N7GLrHI","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_4N7GLrHI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Espresso & Milk Steaming' and a budget_max comfortably above $50.00 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."]}}