{"type":"firestarter.listing","listing":{"id":"lst_yrLf1-3A","product_name":"XMARK - Viper Power Rack with Storage & Flip Down Safeties","category":"Power Rack","description":"\n\n3 in × 3 in 11-gauge steel frame: Ensure stability to perform squats, bench, and pull-ups, and keep your set up steady each session.\n\nSix 90 in uprights and J-cups: Support consistent racking to train squats and bench and keep bar paths predictable from set to set.\n\nFour 24, 30, 36, or 42 in crossmembers: Set up rack depth to target chest, back, and legs with squats, bench, and pull-ups as you expand programming.\n\nFlip Down Safeties: Ensure bar catch protection for solo sets to keep chest, shoulder, and leg work controlled.\n\nPull-up bar: Build back and biceps and improve grip to support strict bodyweight training between barbell sets.\n\nStorage crossmembers with stainless steel storage posts: Store plates to keep your space organized and provide faster set up between lifts and improve training pace.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/5560-2_c1f8b6e8-e666-43f0-b6fa-b9792fccbcc2.jpg?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/21_7e6321c8-2419-4a22-8c4f-7cf4f54d36cd.png?v=1780592051","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/22_b7591cdf-37f1-46ba-a389-e6df843a2e23.png?v=1780592051","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/23_4a77cf5f-7621-4a38-8024-b644a8a5783e.png?v=1780592051","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/24_cac4f96a-9956-4e84-828b-56bd849dc0f4.png?v=1780592050","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Website-Power-Rack-Infographics-Full-Storage-And-Flip-Down-Safeties.jpg?v=1780592050"],"price":2469,"currency":"USD","in_stock":true,"inventory_qty":159984,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.290Z"},"share_url":"https://firestarter.network/l/lst_yrLf1-3A","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_yrLf1-3A' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Viper Power Rack with Storage & Flip Down Safeties' and a budget_max comfortably above $2469.00 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."]}}