{"type":"firestarter.listing","listing":{"id":"lst_1MMKLVXN","product_name":"Nahvalur Original Fountain Pen - Clear Demonstrator","category":"Fountain Pen","description":"\n Comes with a leather \nsingle pen sleeve\n\n\nFrom the depths of imagination surface a new breed of writing instrument tapping into the stream of consciousness with artistic beauty and elegance. Yes, the Narwhal fountain pen is a real pen! The swirling, translucent acrylic has a mystical aquatic quality. The Narwhal drinks deep of fountain pen ink with an internal piston-filling mechanism. The stainless steel fine writing nib has a consistent flow to keep up with an ocean of thoughts.\n\nThey say that the Narwhal is the \"unicorn of the sea.\" The Hippocampus is the mythical \"horse of the sea\" depicted as a half-horse, half-fish animal of ancient lore. Hippocampi are said to have pulled the royal chariot of Poseidon. The swirling curls and ribbons of purple and white are inspired by the graceful cavorting of the aquatic Hippocampus.\n\n\nNarwhal Fountain Pen Specifications:\n\nFinish: Translucent Acrylic\nTrims and Clip: Silver\nNib: No. 6 stainless steel, fine point\nFilling System: Piston mechanism (bottled ink fill only)\nComes with a handmade leather  single pen sleeve\n\nWe are unable to honor pen sleeve color requests.\nPen Length, closed: 5.77 in. / 146.5 mm\nPen Length, open, cap off: 5.24 in. / 133 mm\nPen Length, open, cap posted: cap does not post\nPen Diameter, barrel: 0.53in. / 13.5 mm\nPen Diameter, section: 0.43 in. / 11 mm\nPen Total Weight: 0.7oz. / 19.8 g\nGift boxed\n\n\n\nA great review by Figboot on Pens of this pen on Youtube:\n\nWe would like to thank GoldSpot Pens for introducing us to this wonderful brand. Image Credits: GoldSpot\n\n","images":["https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve_b96ea6a3-c327-4a1f-9a93-088337ff004a.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-2_ef034847-b390-4512-86df-382e37776699.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-3_5b9a8a01-c2ae-4426-b14c-06f3c51aa056.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-4_00cb6423-bcf5-4fbf-87a3-94109660f38a.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-5_3348e4ba-2f28-414c-8fb3-185dcd1d5540.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-7.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/narwhal-fountain-pen-clear-demonstrator-leather-pen-sleeve-8.jpg?v=1632578930","https://cdn.shopify.com/s/files/1/0575/7177/products/381d2a9b-3727-4e7d-a919-bd83b8e721f8_af28ddbe-2bd8-4416-b416-16087f9ccac0.jpeg?v=1632578930"],"price":65,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:03.186Z"},"share_url":"https://firestarter.network/l/lst_1MMKLVXN","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_1MMKLVXN' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nahvalur Original Fountain Pen - Clear Demonstrator' 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."]}}