{"type":"firestarter.listing","listing":{"id":"lst_Zn_K3l1j","product_name":"Sonnet Internal Weight","category":"Sonnet Extra","description":"The internal weight will increase the weight of the keyboard while also slightly modifying the sound profile. Brass and copper will add the most weight.\n\n\n\n\nBlack\nAnodized aluminum\n\n\nMulticolor\nPVD-coated stainless steel\n\n\n\nBrushed Stainless\nBrushed stainless steel\n\n\nBrass wave\nWave pattern CNC'd and clear-coated brass\n\n\n\nCopper wave\nWave pattern CNC'd and clear-coated copper\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0279/3426/1330/files/SONNET_WEIGHT_STEEL.jpg?v=1772244296","https://cdn.shopify.com/s/files/1/0279/3426/1330/files/SONNET_WEIGHT_COPPER.jpg?v=1772244296","https://cdn.shopify.com/s/files/1/0279/3426/1330/files/SONNET_WEIGHT_BRASS.jpg?v=1772244247","https://cdn.shopify.com/s/files/1/0279/3426/1330/files/SONNET_WEIGHT_RGB.jpg?v=1772244247","https://cdn.shopify.com/s/files/1/0279/3426/1330/files/SONNET_WEIGHT_BLACK.jpg?v=1694031835"],"price":60,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:53.493Z"},"share_url":"https://firestarter.network/l/lst_Zn_K3l1j","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_Zn_K3l1j' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sonnet Internal Weight' and a budget_max comfortably above $60.00 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."]}}