{"type":"firestarter.listing","listing":{"id":"lst_q9PNt6iK","product_name":"MRX - Power Weight Lifting Belts 4\" Wide For Men & Women Brown","category":"Lifting Belts","description":"\n  \nGenuine leather build: Withstands heavy lifting and twisting so you can train back, core, and legs with confidence for years.\n  \n4\" wide back panel: Delivers targeted support to your lower back to help you build strength and minimize injury during heavy lifts.\n  \nStainless steel slide bar buckle: Lets you adjust the fit quickly and securely to suit any body shape or size.\n  \nClassic brown finish: Pairs a clean, classic leather look with serious lifting support for squats, deadlifts, and presses.\n  \nSix size options (S-3XL): Ensure a secure, custom fit for lifters of all builds, with a waist range of roughly 28\" to 47\".\n  \nUnisex design: Suits both men and women training in the gym or on the platform.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-1.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-4.jpg?v=1780605756","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-3.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2026-2028-size_chart_1.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_5.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_4.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_3.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_2.jpg?v=1780605756","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_1.jpg?v=1780605755","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2028-brn-2_1_82f6a5da-67b9-467b-aaf0-d37b1fa94f7c.jpg?v=1780605756"],"price":34.99,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:48.961Z"},"share_url":"https://firestarter.network/l/lst_q9PNt6iK","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_q9PNt6iK' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy MRX - Power Weight Lifting Belts 4\" Wide For Men & Women Brown' and a budget_max comfortably above $34.99 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."]}}