{"type":"firestarter.listing","listing":{"id":"lst_7fiK7gLf","product_name":"NÜOBELL 50 to 80 LB Expansion Kit - Standard (Chrome)","category":"Dumbbell","description":"Take your strength training further with the Nuobell 50 to 80-pound Expansion Kit! When 50 pounds no longer challenges you, this kit efficiently upgrades your existing Nuobell set to a powerful 80 pounds per dumbbell.This comprehensive kit includes all the necessary weights and a longer cradle, pre-assembled to smoothly transition your Nuobell set from 50 to 80 pounds—saving you the expense and space of acquiring a whole new set.Download Nuobell 50 to 80 LB Expansion Kit - Standard (Chrome) Product Manual","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/NBEKLB-carousel-1.jpg?v=1764593471"],"price":299.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.533Z"},"share_url":"https://firestarter.network/l/lst_7fiK7gLf","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_7fiK7gLf' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy NÜOBELL 50 to 80 LB Expansion Kit - Standard (Chrome)' and a budget_max comfortably above $299.99 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."]}}