{"type":"firestarter.listing","listing":{"id":"lst_KwUvy9Qt","product_name":"XMARK - Tri-Grip Olympic Weight Plates and Curl Barbell Sets","category":"EZ Curl Bar","description":"\n\nCustomizable set builder: Provide home gym options to target biceps and build strength with your preferred curl bar.\n\nTRI GRIP weight plates: Improve handling and set up as you target biceps, and support control with an ergonomic tri-grip design.\n\nMultiple curl bar options: Support different goals and abilities to build biceps strength and perform focused curls.\n\nHigh-quality, ergonomic design: Deliver comfort and control to perform curls and keep form consistent for biceps work.\n\n65, 95, 115 lb sets: Provide plate combinations from 2.5 to 25 lb to build biceps strength and expand progressive loading.\n\nBarbell collars not included: Ensure you add collars separately to keep plates secure during biceps training sessions.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/36701-BLACK-3377-65.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/36701-BLACK-3377-95.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/36701-BLACK-3377-115.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3675-BLACK-3377-65.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3675-BLACK-3377-95.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3675-BLACK-3377-115.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Sets_Tri-Grip-Curl-Barbells.jpg?v=1780592091","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/XM-Sets_Tri-Grip-Curl-Weight.jpg?v=1780592091"],"price":259,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:57.392Z"},"share_url":"https://firestarter.network/l/lst_KwUvy9Qt","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_KwUvy9Qt' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy XMARK - Tri-Grip Olympic Weight Plates and Curl Barbell Sets' 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."]}}