{"type":"firestarter.listing","listing":{"id":"lst_eWY0uu3j","product_name":"7023 Grand Slam t-shirt - white","category":"T-SHIRTS_JERSEY","description":"A tournament-inspired tee that draws from the US Open archive. This 7023 is a popping fan shirt harking back to days of supping a Bud and watching McEnroe and Austin tear it up on court.","images":["https://cdn.shopify.com/s/files/1/0047/6921/8632/files/7023-white-grand-slam-tee-back.jpg?v=1772465654","https://cdn.shopify.com/s/files/1/0047/6921/8632/files/7023-white-grand-slam-tee-front.jpg?v=1772465681","https://cdn.shopify.com/s/files/1/0047/6921/8632/files/7023-white-grand-slam-tee-front-graphics.jpg?v=1772465717","https://cdn.shopify.com/s/files/1/0047/6921/8632/files/7023-white-grand-slam-tee-hem.jpg?v=1772465745","https://cdn.shopify.com/s/files/1/0047/6921/8632/files/7023-white-grand-slam-tee-model.jpg?v=1772465781"],"price":22.5,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:14.953Z"},"share_url":"https://firestarter.network/l/lst_eWY0uu3j","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_eWY0uu3j' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 7023 Grand Slam t-shirt - white' and a budget_max comfortably above $22.50 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."]}}