{"type":"firestarter.listing","listing":{"id":"lst_EUCNnNVp","product_name":"Mirka 3\" Polisher Replacement Backing Plate","category":"Detailing Equipment","description":"Most of us will never need these, but I wanted to carry them just in case. If you're like me and only polishing one or two cars a month, your backing plate will likely last you a lifetime. But, if you're in a professional environment, you'll probably need to replace it eventually.","images":["https://cdn.shopify.com/s/files/1/1239/9256/files/Photos-3.jpg?v=1695058477","https://cdn.shopify.com/s/files/1/1239/9256/files/Photos-2.jpg?v=1695058477","https://cdn.shopify.com/s/files/1/1239/9256/files/Photos-1.jpg?v=1695058477"],"price":20.51,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:59.664Z"},"share_url":"https://firestarter.network/l/lst_EUCNnNVp","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_EUCNnNVp' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mirka 3\" Polisher Replacement Backing Plate' and a budget_max comfortably above $20.51 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."]}}