{"type":"firestarter.listing","listing":{"id":"lst_ZTpvs7IF","product_name":"XMARK - Viper Power Rack","category":"Power Rack","description":"\n\n3 in × 3 in 11-gauge steel frame: Ensure rack stability to support squats, bench press, and pull-ups while you train legs, chest, back, and core.\n\nFour 90 in uprights: Provide a rigid base to support squats and bench press while keeping your setup stable and secure.\n\n24, 30, 36, or 42 in crossmembers: Set up rack depth to support bench, squat, and pull-ups in compact or spacious home gyms.\n\nPull-up bar: Target back, biceps, and core to build upper-body strength as you perform strict pull-ups and hangs.\n\nJ-cups: Ensure secure racking and unracking to improve setup for squats and bench press and keep bar control.\n\nStrap or flip down safeties: Provide reliable catch points to support solo bench and squat sessions and keep you protected.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/5410-2.jpg?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/9_c527498c-7815-4343-a110-47d68e6e8da3.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/12_6a19b653-e7ca-464e-b6fd-4e7a88eca503.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/13_b9f17bca-3a3f-474a-ad21-048594dd8df2.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/16_c7bf7236-bf8f-40a3-9653-8606db7e99dd.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/10_ec47fb2a-cc6a-46be-adea-2a8c4d26a2c6.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/11_c6b716d5-a9a1-4500-bea3-98290a2544c3.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/14_eb57093e-7dbd-4fd7-a61f-eeb2c09606a7.png?v=1780592058","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/15_225c2dce-de34-40f6-ac08-942162e050bb.png?v=1780592057","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Website-Power-Rack-Infographics-Full.jpg?v=1780592057"],"price":1529,"currency":"USD","in_stock":true,"inventory_qty":319968,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.440Z"},"share_url":"https://firestarter.network/l/lst_ZTpvs7IF","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_ZTpvs7IF' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Viper Power Rack' and a budget_max comfortably above $1529.00 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."]}}