{"type":"firestarter.listing","listing":{"id":"lst_uUt5tZLc","product_name":"Leonardo Momento Zero Fountain Pen – Aluminum – ST #6","category":"Fountain Pen","description":"Description\nMomento Zero Aluminia – Limited Edition /525\nThe classic design with a vintage soul enriched by the essence of the material.\nBorn from the depths of the Earth’s crust, aluminum is extracted from bauxite — a soft, malleable metal celebrated for its luminosity and resilience. These qualities are embodied in the Momento Zero Aluminia, a pen that reflects light with a subtle radiance while maintaining remarkable strength and balance. The result is a writing instrument that feels both refined and enduring — the perfect fusion of Italian design and material innovation.\nEach pen is entirely produced in Italy at Leonardo’s workshop, crafted from solid raw aluminum with a brushed finish. The surface is treated with a Swiss-made colorless coating to preserve the metal’s integrity and ensure long-lasting brilliance with a delicate pearlescent sheen.\n\nFilling System\n\n  \nConverter or cartridge filling system\n\n\nNib Options\n\n  \nSteel Nibs “La Fenice”: EF, F, M, B, Stub 1.1, Stub 1.5\n  \nElastic Steel Nibs: EF, F\n  \nGold Nibs “La Fenice”: EF, F, M, B, Stub 1.1\n  \nElastic Gold Nibs: EF, F\n\n\nSpecifications\n\n  \nLength (closed): 142 mm\n  \nCap Length: 65 mm\n  \nBody Length (with nib): 127 mm\n  \nWeight (uninked): 44 g\n  \nCap Diameter: 15.5 mm\n  \nGrip Diameter: 10.6 mm\n\n","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6.jpg?v=1762525162","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-2.jpg?v=1762525163","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-GT-6-3.jpg?v=1767175435","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-GT-6-4.jpg?v=1767175437","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-5.jpg?v=1762525169","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-6.jpg?v=1762525170","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-7.jpg?v=1767175343","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-8.jpg?v=1762525174","https://cdn.shopify.com/s/files/1/0575/7177/files/Leonardo-Momento-Zero-Fountain-Pen-Aluminum-ST-6-9.jpg?v=1767175345"],"price":180,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.472Z"},"share_url":"https://firestarter.network/l/lst_uUt5tZLc","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_uUt5tZLc' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Leonardo Momento Zero Fountain Pen – Aluminum – ST #6' and a budget_max comfortably above $180.00 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."]}}