{"type":"firestarter.listing","listing":{"id":"lst_SB7pGnlb","product_name":"Tortoise Mazzucchelli Acetate Sunglasses","category":null,"description":"I wanted to make a super durable pair of sunglasses that still felt premium. I break a pair every few months, and I wanted to change that. This is the result of that and im super happy with them.\nMade from heavyweight Mazzucchelli acetate, sourced from Italy. Acetate is a cellulose-based material derived from cotton, and Mazzucchelli is among the most established acetate producers in the eyewear industry.\nLenses are polarized CR-39, a high optical clarity lens. A mild tint reduces eye visibility from the outside.\nMeasurements: 46mm lens, 23mm bridge, 145mm temple.","images":["https://cdn.shopify.com/s/files/1/0497/7262/6073/files/FullSizeRender_VSCO.jpg?v=1713998188","https://cdn.shopify.com/s/files/1/0497/7262/6073/files/OSH-FC-Sunglasses-Campaign-15_VSCO2-2.jpg?v=1713998186"],"price":128,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T08:00:54.266Z"},"share_url":"https://firestarter.network/l/lst_SB7pGnlb","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_SB7pGnlb' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Tortoise Mazzucchelli Acetate Sunglasses' and a budget_max comfortably above $128.00 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."]}}