{"type":"firestarter.listing","listing":{"id":"lst_yMHu8q_q","product_name":"PowerBlock - Elite EXP Adjustable Dumbbells (Expandable to 90 lb)","category":"Adjustable Dumbbells","description":"\n\n5-50 lb per hand: Train arms, shoulders, chest, and back with progressive loads for home strength work.\n\nExpandable to 70 or 90 lb: Expand capacity to build legs and back as strength improves over time.\n\n2.5 lb micro-adjustments: Target delts, triceps, or biceps precisely and ensure steady weekly progress.\n\nSpace-saving block design: Keep floors clear and store compactly while you train chest, back, legs, and core.\n\nSelector pin and Auto-Lock: Deliver fast weight changes and keep adder weights secure between challenging sets.\n\nDurable steel construction: Withstand hard sessions and provide lasting support for chest, back, legs, and core training.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/EliteEXP50.jpg?v=1780589664"],"price":399,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-07-03T16:00:56.733Z"},"share_url":"https://firestarter.network/l/lst_yMHu8q_q","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_yMHu8q_q' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy PowerBlock - Elite EXP Adjustable Dumbbells (Expandable to 90 lb)' and a budget_max comfortably above $399.00 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."]}}