{"type":"firestarter.listing","listing":{"id":"lst_NNJytXZ0","product_name":"Assorted vintage postcards","category":"postcards","description":"Lot of 20, good condition, 1950s era.","images":["https://picsum.photos/seed/postcards/600"],"price":8,"currency":"USD","in_stock":true,"inventory_qty":1,"dynamic_pricing":false,"listed_at":"2026-08-05T07:27:29.351Z"},"share_url":"https://firestarter.network/l/lst_NNJytXZ0","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_NNJytXZ0' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Assorted vintage postcards' and a budget_max comfortably above $8.00 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."]}}