{"type":"firestarter.listing","listing":{"id":"lst_rXKfEQng","product_name":"Amethyst Large Bezel Heart Necklace 18k Yellow Gold","category":"Necklace","description":"3ct. Amethyst Heart Necklace 18k Gold Chain16\" Long\n18k Yellow Gold\nAlso available by special order in White Gold &amp; Rose Gold ","images":["https://cdn.shopify.com/s/files/1/0077/6041/2731/products/IMG_0276.jpg?v=1615152752","https://cdn.shopify.com/s/files/1/0077/6041/2731/products/IMG_0277.jpg?v=1591642908","https://cdn.shopify.com/s/files/1/0077/6041/2731/products/IMG_0278.jpg?v=1615152772"],"price":2495,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:21.256Z"},"share_url":"https://firestarter.network/l/lst_rXKfEQng","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_rXKfEQng' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Amethyst Large Bezel Heart Necklace 18k Yellow Gold' and a budget_max comfortably above $2495.00 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."]}}