{"type":"firestarter.listing","listing":{"id":"lst_XnWFuZxg","product_name":"Squat Harness - 8-Inch Hook Straps (Pair) for V3 & V4","category":"Squat Harness Accessories","description":"\n\n8-inch fixed-length hook straps: Provide extra reach and range of motion when standard Squat Harness straps come up short for your exercise setup.\n\nWide 2.5-inch strap construction: Distributes load evenly across the strap surface and resists wear under repeated heavy loading.\n\nTested up to 750 lb on cable machines: Rated for heavy cable training across the full Squat Harness V3 and V4 exercise library.\n\nV3 and V4 compatible: Swap in for the original straps when you need additional reach -- works with all V3 and V4 models.\n\nSold as a pair in black: Two straps per order, fixed length (not adjustable).\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG-8450.png?v=1780603565"],"price":39,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:00:56.758Z"},"share_url":"https://firestarter.network/l/lst_XnWFuZxg","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_XnWFuZxg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Squat Harness - 8-Inch Hook Straps (Pair) for V3 & V4' and a budget_max comfortably above $39.00 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."]}}