{"type":"firestarter.listing","listing":{"id":"lst_nmsYimBx","product_name":"Danish Ballhead Cabbage","category":"Vegetables","description":"Fans of sauerkraut rejoice: Danish Ballhead is for you. These big fat cabbages don't hold back, growing to a commanding size (8-10 inches in diameter) and yielding lots of cabbage leaves for krauting. Danish Ballhead is also a good storage variety; pull the whole plants in the fall and hang upside-down, root intact, in a cool basement room. Plants will keep at least one month--and under good conditions up to three or four. A late-season type that does best with early-summer sowings.","images":["https://cdn.shopify.com/s/files/1/0072/0909/1117/products/Danish-Ballhead-Cabbage-vendor-unknown-1630675489.jpg?v=1735580457","https://cdn.shopify.com/s/files/1/0072/0909/1117/products/IMG_5526.jpg?v=1735580457"],"price":4.39,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:39.889Z"},"share_url":"https://firestarter.network/l/lst_nmsYimBx","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_nmsYimBx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Danish Ballhead Cabbage' and a budget_max comfortably above $4.39 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."]}}