{"type":"firestarter.listing","listing":{"id":"lst_L5MfkbyE","product_name":"XMARK - Olympic Change Plates (Pounds 6-Pairs ½ to 10 lbs.)","category":"Micro Plates","description":"\n\nMaterial: High-quality virgin rubber over a solid steel core to deliver durability and support steady training.\n\nWeight Range: In 0.5, 1, 1.25, 2.5, 5, and 10 lb to build strength gradually and set up microprogressions on core, back, and legs.\n\nAccuracy: Less than 10 g tolerance to ensure precise loading and deliver consistent PR attempts for chest, back, and legs.\n\nDesign: Color-coded matte finish with embossed lettering to improve plate ID and keep sessions organized between sets.\n\nUnique Feature: Solid steel core encased in premium virgin rubber to provide rigid stability and withstand frequent training.\n\nIdeal For: Competition lifters, gym owners, and beginners to target PRs and improve progressive loading across programs.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-Line-Up-2.jpg?v=1780592098","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-.5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-1.jpg?v=1780592098","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-1.25.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-2.5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-5.jpg?v=1780592097","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Change-LB-10.jpg?v=1780592097"],"price":259,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.485Z"},"share_url":"https://firestarter.network/l/lst_L5MfkbyE","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_L5MfkbyE' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Olympic Change Plates (Pounds 6-Pairs ½ to 10 lbs.)' and a budget_max comfortably above $259.00 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."]}}