{"type":"firestarter.listing","listing":{"id":"lst_88eLRQoF","product_name":"Vintage Astra Merck Creation Tee White XL","category":"Tees, Vintage","description":"A Vintage Astra Merck tee with quote \"I'm part of the Creation\" with front graphic showing fading and discoloration around top of tee.\nSize: X-Large\n100% Cotton Tee\nMeasurements:\nWidth: 22\"\nLength: 28\"\nThis is a genuine vintage piece and because of its age may have flaws from wear that add character to the item. We will state and show detail photos of any issues found with the piece as best as possible.\n","images":["https://cdn.shopify.com/s/files/1/1798/2671/files/ASTRA-MERCK-TEE-CREAM-FRONT.jpg?v=1723061380","https://cdn.shopify.com/s/files/1/1798/2671/files/ASTRA-MERCK-TEE-CREAM-DETAIL.jpg?v=1723061380","https://cdn.shopify.com/s/files/1/1798/2671/files/ASTRA-MERCK-TEE-CREAM-LENGTH-MEASUREMENT.jpg?v=1723061379","https://cdn.shopify.com/s/files/1/1798/2671/files/ASTRA-MERCK-TEE-CREAM-WIDTH-MEASUREMENT.jpg?v=1723061380"],"price":18,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:40.205Z"},"share_url":"https://firestarter.network/l/lst_88eLRQoF","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_88eLRQoF' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Vintage Astra Merck Creation Tee White XL' and a budget_max comfortably above $18.00 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."]}}