{"type":"firestarter.listing","listing":{"id":"lst_zyDVPkZb","product_name":"Diadem Premier Regular Duty - Case","category":"Tennis Ball","description":"Always play to win. The highly-anticipated Diadem Premier Regular Duty Ball is available NOW. Perfect for soft and indoor court surfaces.\nDiadem Premier Balls are tournament level tennis balls designed for enhanced durability and consistent playability. Engineered using premium TTI felt, the Premier Regular Duty Ball was designed for those looking for a more bouncy ball then our Extra Duty (formally called All Court) ball. The Diadem Premier Ball is sanctioned and approved for ITF and USTA tournaments. \n24 three ball cans\n72 total balls\nNote: Cases of balls do not qualify for free shipping. Cases only ship within the contiguous United States via UPS Ground.","images":["https://cdn.shopify.com/s/files/1/0253/6210/4402/products/RegulardutyCase.jpg?v=1762443538"],"price":119.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.572Z"},"share_url":"https://firestarter.network/l/lst_zyDVPkZb","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_zyDVPkZb' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Diadem Premier Regular Duty - Case' and a budget_max comfortably above $119.95 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."]}}