{"type":"firestarter.listing","listing":{"id":"lst_6hI7CYjD","product_name":"Solstice Power","category":"Tennis String","description":"Diadem Solstice Power is a comfortably soft co-poly with a six-pointed star shape. The result is a string that combines a low-friction surface with maximum ball bite. In other words, this string was built for spin - massive spin. Beginner, intermediate and advanced players looking for a comfortable co-poly with pinpoint control have come to the right place.\n \n   Actual Cross Section\n\n \n\nLength: 40 feet / 12.2m\nColor: Teal\nGauges Available\n\n18 (1.15mm) Best feel\n\n17 (1.20mm)\n16L (1.25mm)\n16 (1.30mm)\n15L (1.35mm) Most durable\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0253/6210/4402/files/Solstice_green_combined.jpg?v=1762439828"],"price":13.95,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.940Z"},"share_url":"https://firestarter.network/l/lst_6hI7CYjD","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_6hI7CYjD' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Solstice Power' and a budget_max comfortably above $13.95 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."]}}