{"type":"firestarter.listing","listing":{"id":"lst_IR2XfksM","product_name":"EQ4 Calftone Bass Batter Drumhead","category":"D'Addario","description":"Calftone drumheads are a synthetic alternative to traditional calfskin.  These heads embody the calfskin look and sound but with the consistency, fit, and tuning range made standard with Level 360 Technology.  Calftone is made using a 12mil Mylar base blended with unique materials to produce warm, full, and rich tones.  These heads bring out the best of a vintage kit and evoke a classic appearance and sound from modern drums.  As an EQ4, a fixed internal overtone control ring helps focus the tonal response of the drum. Can be be used as both a batter and resonant head.","images":["https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD16GB4CT_main_transparent.png?v=1773013793","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD18GB4CT_main_transparent.png?v=1773013794","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD20GB4CT_main_transparent.png?v=1773013795","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_TT16GB4CT_main_transparent.png?v=1773013795","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD22GB4CT_main_transparent.png?v=1773013795","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD24GB4CT_main_transparent.png?v=1773013795","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD26GB4CT_main_transparent.png?v=1773013795","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD16GB4CT_detail1_transparent_9ac3cf61-8df0-447f-aba2-4fa4fb1666b6.png?v=1773013798","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD18GB4CT_detail1_transparent.png?v=1773013797","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD20GB4CT_detail1_transparent.png?v=1773013797","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_TT16GB4CT_detail1_transparent.png?v=1773013798","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD22GB4CT_detail1_transparent.png?v=1773013798","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD24GB4CT_detail1_transparent.png?v=1773013798","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD26GB4CT_detail1_transparent.png?v=1773013799","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD16GB4CT_onBassBatter_transparent.png?v=1773013799","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD18GB4CT_onBassBatter_transparent.png?v=1773013800","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD20GB4CT_onBassBatter_transparent.png?v=1773013800","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_TT16GB4CT_onBassBatter_transparent.png?v=1773013801","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD22GB4CT_onBassBatter_transparent.png?v=1773013801","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD24GB4CT_onBassBatter_transparent.png?v=1773013801","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/ev_BD26GB4CT_onBassBatter_transparent.png?v=1773013802"],"price":55.99,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.437Z"},"share_url":"https://firestarter.network/l/lst_IR2XfksM","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_IR2XfksM' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy EQ4 Calftone Bass Batter Drumhead' and a budget_max comfortably above $55.99 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."]}}