{"type":"firestarter.listing","listing":{"id":"lst_wHTYs2lb","product_name":"Nahvalur Nautilus Stylophora Berry Ebonite Fountain Pen","category":"Fountain Pen","description":"Nautilus, reimagined.\nIntroducing three refreshed Nahvalur Nautilus models—Stylophora Berry, Chelonia Green, and Maylandia Blue—each featuring our sleeker, more contemporary silhouette (first seen in our Cephalopod ebonite series) and crafted with the materials and attention to detail you love.Why you’ll love it\n\n\nPremium ebonite body for that warm, tactile feel in the hand\n\n\nRose-gold trim across the trio for a refined, cohesive look\n\n\nUpgraded ebonite feed tuned for smooth, consistent ink flow\n\n\nA silhouette that feels modern yet unmistakably Nautilus\n\n\nNahvalur Nautilus Stylophora Fountain Pen Specifications:\n\nPen Material: Ebonite\nTrim: Rose Gold\nNib: Stainless steel #6 size or 14K Gold #6 size made by Nahvalur\nFilling Mechanism: Piston-filling (bottled ink only)\n\nPen Length, Closed: 5.94 in. / 151mm\nPen Length, Open (Cap Off): 5.19 in. / 132mm\nPen Length, Open (Cap Posted): Cannot be posted\nPen Barrel Diameter: 0.57 in. / 14.5mm\nPen Grip Section Diameter: 0.41 in. - 0.44 in. / 10.6mm - 11.3mm\nPen Weight: 1.3 oz. / 36.85g\nPackaged in a gift box\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Stylophora-Berry-Ebonite-Fountain-Pen_51859d83.jpg?v=1767175013","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Stylophora-Berry-Ebonite-Fountain-Pen-2_34e2eff5.jpg?v=1767175025","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Stylophora-Berry-Ebonite-Fountain-Pen-3_4337a1be.jpg?v=1767175037","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Stylophora-Berry-Ebonite-Fountain-Pen-4.jpg?v=1767175038","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Stylophora-Berry-Ebonite-Fountain-Pen-5.jpg?v=1767175040"],"price":180,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.605Z"},"share_url":"https://firestarter.network/l/lst_wHTYs2lb","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_wHTYs2lb' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nahvalur Nautilus Stylophora Berry Ebonite Fountain Pen' 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."]}}