{"type":"firestarter.listing","listing":{"id":"lst_lAoJiuT4","product_name":"Mercado Stack Ring In Blue Sapphire","category":"Rings","description":"Inspired by the open air markets of the world, the Mercado Stack Ring in Blue Sapphire is cast from solid yellow gold set with a Blue Sapphire baguette center, accented by a bezel set Diamond and pave band of Emeralds. \n","images":["https://cdn.shopify.com/s/files/1/1442/5650/files/WR185.10K.BS.E_d321a480-b46e-45f5-b332-dad5e9551357.jpg?v=1698947885","https://cdn.shopify.com/s/files/1/1442/5650/files/65811E36-12D0-40C1-AAED-93300673110D.jpg?v=1726168904","https://cdn.shopify.com/s/files/1/1442/5650/files/WR185.10K.BS.E-SIDE.jpg?v=1726168907"],"price":620,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:29.659Z"},"share_url":"https://firestarter.network/l/lst_lAoJiuT4","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_lAoJiuT4' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mercado Stack Ring In Blue Sapphire' and a budget_max comfortably above $620.00 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."]}}