{"type":"firestarter.listing","listing":{"id":"lst_BV3fg1lm","product_name":"Barbell Standard - Magnetic Barbell Collars","category":"Collar","description":"\nSturdy magnetized design: Keep plates stable throughout lifts so you can train legs, back, and chest with confidence.\n\nMagnetic storage: Store collars on your barbell or rack between sets to improve organization and set up quickly.\n\n1.1 in width: Support loadable dumbbells and keep plates from shifting as you target arms, shoulders, and back.\n\nRubberized inside: Resist bar scratches and provide a solid grip to perform presses and rows with steady control.\n\nLightweight build, 0.25 lb each (0.5 lb pair): Move fast between lifts and set up quickly while collars keep plates aligned.\n\n2-year warranty: Ensure long-term support and provide confidence for frequent training sessions.","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/mag-collars-bk-hero.jpg?v=1780583442","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/mag-collars-in-bag.jpg?v=1780583442","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/mag-collars-rd-hero.jpg?v=1780583422","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/mag-collars-ls.jpg?v=1780583443","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/mag-collars-bk-lifestyle.jpg?v=1780583442"],"price":24,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:51.497Z"},"share_url":"https://firestarter.network/l/lst_BV3fg1lm","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_BV3fg1lm' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Barbell Standard - Magnetic Barbell Collars' and a budget_max comfortably above $24.00 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."]}}