{"type":"firestarter.listing","listing":{"id":"lst_5nIv3y8n","product_name":"Leonardo Momento Zero Grande 2.0 Fountain Pen – Sottobosco – GT #8 14K Gold","category":"Fountain Pen","description":"Description\nSottobosco (Undergrowth) evokes a peaceful walk through warm, earthy autumn tones—amber, onyx, and yellow. Subtle transparency on the cap and barrel recalls sunbeams filtering through tree branches, creating a gentle interplay of shadows and glimmers. The calm, focused feeling mirrors the writing experience of the MZG 2.0.\nTechnical Details\n\n\nNib: Gold “La Fenice” #8\n\nFilling System: Integrated piston mechanism, 1.5 ml capacity\n\nInk Window: Transparent window to indicate ink level\n\nFeed: Japanese black ebonite\n\nService Tool: Dedicated piston disassembly tool available separately (no link)\n","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Grande-2_0-Fountain-Pen-Sottobosco-GT-8-14K-Gold_5a1caee7.jpg?v=1762525780","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Grande-2_0-Fountain-Pen-Sottobosco-GT-8-14K-Gold-2_6dbda35b.jpg?v=1762525792","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Grande-2_0-Fountain-Pen-Sottobosco-GT-8-14K-Gold-3_a6821784.jpg?v=1762525804","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Grande-2_0-Fountain-Pen-Sottobosco-GT-8-14K-Gold-4_0822deb6.jpg?v=1762525816","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Grande-2_0-Fountain-Pen-Sottobosco-GT-8-14K-Gold-5.jpg?v=1762525818"],"price":745,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.512Z"},"share_url":"https://firestarter.network/l/lst_5nIv3y8n","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_5nIv3y8n' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Leonardo Momento Zero Grande 2.0 Fountain Pen – Sottobosco – GT #8 14K Gold' and a budget_max comfortably above $745.00 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."]}}