{"type":"firestarter.listing","listing":{"id":"lst_ciBnl_KV","product_name":"D'Addario Ball End T-Shirt","category":"Merch Store","description":"To most, they’re just six colored circles. To you and millions of players, they mean a lot more. You might like the graphic of the Ball End shirt, but what you might not expect is the attention you’ll get from fellow guitarists when you’re out in the world. Like a secret code or handshake, our Ball End T-shirt helps you form new connections with players everywhere. It features the six-color print on the front, our D'Addario logo on the back and a \"D Mark\" patch sewn near the front bottom hem.","images":["https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240114_main_transparent_web.png?v=1773014449","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240115_main_transparent_web.png?v=1773014449","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240116_main_transparent_web.png?v=1773014450","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240112_main_transparent_web.png?v=1773014448","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240113_main_transparent_web.png?v=1773014448","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240111_main_transparent_web.png?v=1773014448","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240111_detail1_transparent_web.png?v=1773014453","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240112_detail1_transparent_web.png?v=1773014453","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240113_detail1_transparent_web.png?v=1773014453","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240114_detail1_transparent_web.png?v=1773014454","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240115_detail1_transparent_web.png?v=1773014454","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/dc_ATG240116_detail1_transparent_web.png?v=1773014455"],"price":36,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.286Z"},"share_url":"https://firestarter.network/l/lst_ciBnl_KV","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_ciBnl_KV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy D'Addario Ball End T-Shirt' and a budget_max comfortably above $36.00 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."]}}