{"type":"firestarter.listing","listing":{"id":"lst_6Vl75Hj9","product_name":"Nahvalur Original Plus Sapphire Fountain Pen","category":"Fountain Pen","description":"\n\n\n Our New Color for Original Plus Family   \n\n\n\n\n\nFavored by the famed explorer Marco Polo, sapphires have been treasured the world over for the glint of their rich azure. The soothing hue of this gemstone grants its name to this pen, another brand-new addition to the Original Plus collection.\nFeaturing a transparent barrel with a highly efficient vacuum filling system, the Original Plus Sapphire ensures you spend less time refilling, and more time on what truly matters: Your words, your ideas, and your writing.\nThis, and three other stunning new colors of Original Plus, are available now!\n\n \n\n\n\nNahvalur Original Plus Sapphire Fountain Pen Specifications:   \n\n\n\nPen Material: Acrylic\n\nTrims and Clip: Rose Gold-plated appointments\n\nNib: No. 6 stainless steel nib available in F, M, B or 1.1mm stub.\n\nFilling System: Vacuum-Filling (bottled ink fill only)\n\nPen length, closed: 5.75 in. / 146mm\n\nPen length, open (cap off): 5.11 in. / 130mm\n\nPen length, open (cap posted): 6.97 in. / 177mm\n\nPen Diameter, barrel: 0.51 in. / 13 mm\n\nPen diameter, grip section: 0.37 in. - 0.43 in. / 9.5mm - 11mm\n\nPen weight (without ink): 1.2 oz. / 34g\n\nGift boxed with user guide and 1-year warranty\n\n\n\n ","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen.jpg?v=1756221099","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-2.jpg?v=1759310573","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-3.jpg?v=1756221102","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-4.jpg?v=1756221103","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-5.jpg?v=1756221105","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-6.jpg?v=1756221106","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-7.jpg?v=1756221108","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Original-Plus-Sapphire-Fountain-Pen-8.jpg?v=1756221109"],"price":65,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.575Z"},"share_url":"https://firestarter.network/l/lst_6Vl75Hj9","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_6Vl75Hj9' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nahvalur Original Plus Sapphire Fountain Pen' and a budget_max comfortably above $65.00 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."]}}