{"type":"firestarter.listing","listing":{"id":"lst_A2GvfHEk","product_name":"Serious Steel Fitness - 5 lb Brick PlateMate","category":"Resistance Bands","description":"\n\n5 lb magnetic brick: Deliver precise microloading to build back, legs, and chest strength to provide progressive overload.\n\nPatented steel or cast iron fit: Ensure reliable add-ons on selectorized machines and stacks to improve back and leg sets.\n\nDirect-metal magnetic hold: Ensure firm attachment; will not stick to rubber, urethane, neoprene, or vinyl, to improve chest training.\n\nProtective outer coating: Keep machines and plates unmarked while you strengthen legs and core during incremental progress.\n\n7-1/8 in × 2-1/8 in × 1-1/2 in size: Move between machines to target back, legs, and chest, sold as a single 5 lb unit.\n\nProgressive microloading method: Provide small jumps to break plateaus and support rehab of arms, shoulders, and legs.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/PlateMate-5lb-Brick_Main-Image_2022_1.jpg?v=1780586311","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/PlateMate-2020_5lb-Brick-on-stack_On-desaturated-Background.jpg?v=1780586317","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/PlateMate-5lb-Brick_On-Weight-Stack_1.jpg?v=1780586318","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/5-Brick-Spec-Page_2019-1_c39213f2-4296-451f-940d-d9d3e6916c4f.jpg?v=1780586317"],"price":56.9,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:04.575Z"},"share_url":"https://firestarter.network/l/lst_A2GvfHEk","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_A2GvfHEk' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Serious Steel Fitness - 5 lb Brick PlateMate' and a budget_max comfortably above $56.90 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."]}}