{"type":"firestarter.listing","listing":{"id":"lst_I8YAPg8P","product_name":"Postcard","category":"Home & Bath","description":"Enjoy these postcards from around the farm. Four amazing pictures that represent exactly what the J.Q Dickinson farm is all about. \nAvailable individually or all 4 together.  \n4.25\"x5.5\" \n \n \n ","images":["https://cdn.shopify.com/s/files/1/0021/4771/3059/files/DSC5643-min.jpg?v=1763237686"],"price":0.75,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:11.505Z"},"share_url":"https://firestarter.network/l/lst_I8YAPg8P","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_I8YAPg8P' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Postcard' and a budget_max comfortably above $0.75 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."]}}