{"type":"firestarter.listing","listing":{"id":"lst_ln7lYw4_","product_name":"Prizehead Lettuce","category":"Vegetables","description":"This heirloom lettuce is still winning prizes for its curled leaves of light green with pinkish tips. It is a stand-out in the garden and on the table for the brightness of its contrasting colors, much greater than other varieties. Non-heading, despite the misleading name. Does best in cooler weather.","images":["https://cdn.shopify.com/s/files/1/0072/0909/1117/products/IMG_20200618_094725.jpg?v=1735580357","https://cdn.shopify.com/s/files/1/0072/0909/1117/products/Prizehead-Lettuce-vendor-unknown-1630676113.jpg?v=1735580358"],"price":4.99,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:39.636Z"},"share_url":"https://firestarter.network/l/lst_ln7lYw4_","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_ln7lYw4_' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Prizehead Lettuce' and a budget_max comfortably above $4.99 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."]}}