{"type":"firestarter.listing","listing":{"id":"lst_bfXzRgxY","product_name":"Vintage Heavy Australian Opal Ring","category":"Vintage","description":"Vintage Australian Opal ring \n\n14K Yellow ring\nBand is thick 7mm .\nSuper heavy substantial ring weights 11.4gr.\nCenter is 16mm diameter,\nOpal approx.. 3.4ct.\nAmazing addition to any collection ","images":["https://cdn.shopify.com/s/files/1/1442/5650/files/Untitled_Artwork33.png?v=1756492301","https://cdn.shopify.com/s/files/1/1442/5650/files/IMG_3178.jpg?v=1756492879"],"price":4100,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:29.131Z"},"share_url":"https://firestarter.network/l/lst_bfXzRgxY","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_bfXzRgxY' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Vintage Heavy Australian Opal Ring' and a budget_max comfortably above $4100.00 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."]}}