{"type":"firestarter.listing","listing":{"id":"lst_WmpzLLqq","product_name":"XMARK - 12-Sided Commercial Urethane Dumbbells (5-50 lb and 5-75 lb Sets)","category":"Urethane Dumbbells","description":"html\n\n\nUrethane construction: Withstand daily training and resist wear to support chest, back, and leg work.\n\nKnurled handles: Ensure a firm grip to perform presses, rows, and curls targeting chest, back, and arms.\n\n12-sided design: Keep dumbbells from rolling to set up circuits and supersets and keep floors orderly between sets.\n\nClear weight markings: Provide fast identification to move between chest presses, goblet squats, and rows quickly.\n\nComfort-focused design: Provide hand comfort to perform longer sets targeting shoulders, arms, back, and legs.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9106-12side-5-75.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9104-12side-5-50.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9102-12side-5-50.jpg?v=1780592049","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9103-12side-5-50.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3323-550-set-horizontal.jpg?v=1780592049","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3323-5-75-set-horizontal-1.jpg?v=1780592049","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3323-5-Pair_e4b6ba49-c0f3-406e-8f28-a64b06e73077.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3323-50-Pair_43c318b1-080c-4d56-9a6c-04bdda75b9f2.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3323-75-Pair_8aa65218-e269-480e-bc7c-ef74e256ac06.jpg?v=1780592049"],"price":2469,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.514Z"},"share_url":"https://firestarter.network/l/lst_WmpzLLqq","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_WmpzLLqq' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - 12-Sided Commercial Urethane Dumbbells (5-50 lb and 5-75 lb Sets)' and a budget_max comfortably above $2469.00 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."]}}