{"type":"firestarter.listing","listing":{"id":"lst_QPToXHTi","product_name":"Iron Neck - Iron Neck 3.0","category":"Neck Trainer","description":"\n\n360-degree Isometric Training: Improve circulation to neck flexors and extensors to support recovery and mobility.\n\nAirfit Technology: Provide a custom fit with interchangeable padding and air bladder to support cervical alignment.\n\nFriction-free slider: Deliver smooth movement to improve neck rotation and lateral flexion during rehab.\n\nRoot-cause therapy design: Target neck pain drivers, address muscle imbalances, and improve range of motion.\n\nStrengthening and flexibility focus: Strengthen neck flexors and rotators and improve daily head and neck mobility.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-531447.jpg?v=1780585981","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-236208.jpg?v=1780585982","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-618885.jpg?v=1780585982","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-565696.jpg?v=1780585982","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-959988.jpg?v=1780585982","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-659959.jpg?v=1780585974","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-317165.jpg?v=1780585982","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-435786.jpg?v=1780585974","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-308677.jpg?v=1780585974","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/iron-neck-30-820892.jpg?v=1780585981"],"price":349,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:54.123Z"},"share_url":"https://firestarter.network/l/lst_QPToXHTi","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_QPToXHTi' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Iron Neck - Iron Neck 3.0' and a budget_max comfortably above $349.00 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."]}}