{"type":"firestarter.listing","listing":{"id":"lst_BuWTssnx","product_name":"B24 - Empryean - Piston Filler","category":"Fountain Pen","description":"The B24 Empryean piston filler pen brings heavenly colors to your fingertips with its stunning, celestial-inspired hues. A true Hinze classic, this pen combines smooth piston filling with playful elegance, making every writing moment feel like a little piece of the sky.\n","images":["https://cdn.shopify.com/s/files/1/0329/5117/3260/files/PhotoMay042025_65817PM.jpg?v=1749067109","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/PhotoMay042025_65827PM.jpg?v=1749067109","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/PhotoMay042025_65807PM_1.jpg?v=1749067109","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/PhotoMay042025_65807PM.jpg?v=1749067109","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/PhotoMay042025_65826PM.jpg?v=1749067109","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/Hinze-Custom-Order-Form-1_Page_1_6723b42c-8f54-49e6-ae4b-a2dbc2273025.jpg?v=1771952136","https://cdn.shopify.com/s/files/1/0329/5117/3260/files/Hinze-Custom-Order-Form-1_Page_2_10b8831f-3900-4907-a9c1-c8e010d342f3.jpg?v=1771952136"],"price":259.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:21.912Z"},"share_url":"https://firestarter.network/l/lst_BuWTssnx","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 ","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_BuWTssnx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy B24 - Empryean - Piston Filler' and a budget_max comfortably above $259.99 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."]}}