{"type":"firestarter.listing","listing":{"id":"lst_p8E4ghO9","product_name":"XMARK - Olympic Change Plates (Kilogram 6-Pairs ½ kg to 5 kg)","category":"Change Plates","description":"\nMaterial: Premium virgin rubber and solid steel core withstand hard training and provide long-lasting use.\n\nWeight Range: 0.5 kg to 5 kg increments expand microloading to target squat, bench, and press PR attempts.\n\nAccuracy: IWF-standard tolerance under 10 grams ensures precise loading to improve strength for legs, back, and chest.\n\nDesign: Vibrant color-coded matte finish with raised lettering improve plate ID to keep transitions fast between sets.\n\nUnique Feature: Heavy-duty solid steel core with virgin rubber exterior provide rigid hubs, resist wear, and ensure long life.\n\nSuitable For: Competition lifters, gym owners, and beginners perform PR attempts and set up steady, measurable progressions.","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-Main.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-2.5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-2.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-1.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-1.5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-KG-.5.jpg?v=1780592097"],"price":309,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.490Z"},"share_url":"https://firestarter.network/l/lst_p8E4ghO9","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_p8E4ghO9' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Olympic Change Plates (Kilogram 6-Pairs ½ kg to 5 kg)' and a budget_max comfortably above $309.00 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."]}}