{"type":"firestarter.listing","listing":{"id":"lst_zVaC9Vh5","product_name":"GUSTARD Fuse","category":null,"description":"\n\n\nClean and Smooth Three-frequency Balance\nIt redefines technical performance and tonal balance, with rich sound detail--balanced, clean, and smooth. High-frequency elongation is good and glossy，strong and thick in medium frequency, while low frequency is deep and powerful. Even very subtle sounds (vibrations) can be captured, meaning it would deliver an accurate and enjoyable musical experience.\n\n\n\n\n\nExcellent Audio Impression\nAs one of the most important accessories essential for HIFI equipment, Gustard fuse typifies a combination of thick and thin alloys. It optimizes low and medium and high frequencies respectively, increasing the range of hearing and reducing distortion. This fuse can also be used with other brands of products.\n\n\n\n\n\nMore Safe Interior Structure\nThe fuse filling is made of high-purity quartz sand and nano-red copper powder. Quartz sand and copper powder have excellent heat dissipation performance, and the resistance value of copper powder is extremely low. To ensure safety, if exceeds the standard, it will be melted in the quartz sand part, achieving the advantages of both tuning and safety. The contact part is gold-plated, low impedance, good contact, and resistant to oxidation.\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1_2_8e8db4b2-c3bf-4a2c-937c-896dfab71c34.jpg?v=1662368702","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1_3_d276cdcc-77fb-487f-b29f-23c93d2e1812.jpg?v=1662368720","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/1_4_14b01bd5-d6d6-4490-a303-cb821dac5b3b.jpg?v=1662368722","https://cdn.shopify.com/s/files/1/0040/7201/3924/products/20220902184740.jpg?v=1662368729"],"price":24.99,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:47.279Z"},"share_url":"https://firestarter.network/l/lst_zVaC9Vh5","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_zVaC9Vh5' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GUSTARD Fuse' and a budget_max comfortably above $24.99 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."]}}