{"type":"firestarter.listing","listing":{"id":"lst_MK0xNjQT","product_name":"Amethyst Necklace","category":"Necklaces","description":"A vibrant purple amethyst is simply wrapped in warm 22k gold in this sweet necklace.\nPendant diameter measures approximately 3/8 inch. Sterling silver back and 14k gold chain. Matte finish.","images":["https://cdn.shopify.com/s/files/1/1479/9532/files/25-07-12_007_1200.jpg?v=1754592347"],"price":925,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:26.385Z"},"share_url":"https://firestarter.network/l/lst_MK0xNjQT","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_MK0xNjQT' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Amethyst Necklace' and a budget_max comfortably above $925.00 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."]}}