{"type":"firestarter.listing","listing":{"id":"lst_BLvmvox0","product_name":"Utility Shackle Rack Attachment","category":"Rack Attachment","description":"Mounting gym equipment shouldn't feel like a DIY disaster waiting to happen.Whether it’s a heavy bag that’s too tricky to hang from high ceilings or gym rings and cable pulleys with a mind of their own, the Bells of Steel Utility Shackle Rack Attachment has you covered.Easily mount the Utility Shackle to a 3” x 3” power rack to keep your attachments secure. Or, mount it on a Utility Arm — maintaining full use of your rack while taking advantage of the often-overlooked side space.This shackle provides a rock-solid grip, making it the ideal solution to keep your accessories secure and your home gym looking sharp.IMPORTANT: Compatible with 3” x 3” racks with 5/8\" or 1\" holes.","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/shackle-carousel-primary_u3o6iu.jpg?v=1764593236","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/shackle-texture-1_cdw2gw.jpg?v=1764593236","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/shackle-carousel-sale-1_rkibn9.jpg?v=1764593236","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/shackle-carousel-1_jujla2.jpg?v=1764593236"],"price":32.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.537Z"},"share_url":"https://firestarter.network/l/lst_BLvmvox0","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_BLvmvox0' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Utility Shackle Rack Attachment' and a budget_max comfortably above $32.99 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."]}}