{"type":"firestarter.listing","listing":{"id":"lst_9Hqwnw_V","product_name":"GoFit - Stability ball","category":"Stability Ball","description":"\n\nUnstable round surface: Improve balance, alignment, and posture as you train core, back, and glutes on an unstable base.\n\nThree sizes (55 cm, 65 cm, 75 cm): Provide proper fit for 5 ft to 5 ft 5 in, 5 ft 5 in to 6 ft, and 6 ft and over to target core, back, and legs.\n\n1000 lbs static rating: Ensure confidence during crunches and squats as you strengthen core, glutes, and legs.\n\nNon-phthalate PVC construction: Provide reliable support for balance, alignment, and posture while you train core.\n\nComplete kit (foot pump, plugs, plug remover, bicycle pump adapter, poster, tape): Set up at home and train, then keep gear organized.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_1.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_5.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_6.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_7.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_2.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_3.jpg?v=1780587068","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/GF-BALL_1600x1600_4.jpg?v=1780587068"],"price":27.5,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:04.033Z"},"share_url":"https://firestarter.network/l/lst_9Hqwnw_V","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_9Hqwnw_V' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GoFit - Stability ball' and a budget_max comfortably above $27.50 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."]}}