{"type":"firestarter.listing","listing":{"id":"lst_P9FvjQ3L","product_name":"Root Beer Marshmallows","category":"Marshmallows","description":"A perfect root beer, full of head and subtle spicing, is the stuff summer afternoons were made for. The foam and carbonation makes these marshmallows just that much airier.\nAll of our marshmallows are made with real cane sugar, for a crisper \"sweet\" and a better aftertaste. Gluten-Free and made with Kosher ingredients. Each box of 16 marshmallows is packaged in lovingly letter-pressed, American-made paper.","images":["https://cdn.shopify.com/s/files/1/0196/8728/files/root_beer_04e56778-6bc8-4c31-95ea-63c5423603b1.jpg?v=1780408675","https://cdn.shopify.com/s/files/1/0196/8728/products/rootbeer.jpg?v=1369798421"],"price":10.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:21.600Z"},"share_url":"https://firestarter.network/l/lst_P9FvjQ3L","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_P9FvjQ3L' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Root Beer Marshmallows' and a budget_max comfortably above $10.95 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."]}}