{"type":"firestarter.listing","listing":{"id":"lst_zpPBQemf","product_name":"GoFit - Medicine Balls","category":"Medicine Ball","description":"\n\n4–15 lb sizes: Train core, hips, shoulders, and knees progressively to build trunk strength and joint integrity.\n\n7.5 in, 8.5 in, 9.5 in diameters: Provide appropriate ball sizes by weight to train core, shoulders, hips, and knees.\n\nIncludes ball and manual: Provide guided drills to target core, shoulders, elbows, hips, and knees during training.\n\nRubber construction and care: Keep the ball in good condition by cleaning with mild soap, warm water, and avoiding sun and extreme temperatures.\n\nPre-use safety checks: Ensure safer sessions by inspecting for nicks, tears, or holes to resist injury to shoulders, elbows, hips, and knees.\n\n90-day limited warranty: Provide support for defects in material or workmanship under normal personal home use.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB_PU1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB_PU2.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB4_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB6_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB8_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB10_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB12_PO1.jpg?v=1780587026","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-MB15_PO1.jpg?v=1780587026"],"price":43.99,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:04.909Z"},"share_url":"https://firestarter.network/l/lst_zpPBQemf","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_zpPBQemf' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GoFit - Medicine Balls' and a budget_max comfortably above $43.99 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."]}}