{"type":"firestarter.listing","listing":{"id":"lst_rMjicoEl","product_name":"MRX - Weight Lifting Nylon Dip Belt With Metal Chain Bodybuilding Gym Workout","category":"Lifting Belts","description":"\n  \nHigh-quality neoprene build: Withstands heavy training sessions and keeps the belt firm and supportive against your body.\n  \nFoam padding: Cushions your waist and lower back so you can add weight and train longer in comfort.\n  \nFully adjustable heavy-duty metal chain: Loads weight plates securely so you can add resistance to dips and pull-ups.\n  \nFor weighted dips and pull-ups: Adds external load to bodyweight movements to build triceps, chest, shoulders, and back strength.\n  \nUniversal size: Fits most body types so one belt works for a wide range of lifters.\n  \nAvailable in four colors: Choose Black, Blue, Pink, or Burgundy to match your gym style.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2025-low.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2025-blk_1_1.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new_mrx_dipping_belt_blue_color_1.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new_mrx_dipping_belt_pink_color_1.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new-mrx-dip-belt-burgundy-color_1.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2025-blk_1.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new_mrx_dipping_belt_blue_color.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new_mrx_dipping_belt_pink_color.jpg?v=1780605765","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/new-mrx-dip-belt-burgundy-color.jpg?v=1780605765"],"price":19.98,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:48.958Z"},"share_url":"https://firestarter.network/l/lst_rMjicoEl","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_rMjicoEl' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy MRX - Weight Lifting Nylon Dip Belt With Metal Chain Bodybuilding Gym Workout' and a budget_max comfortably above $19.98 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."]}}