{"type":"firestarter.listing","listing":{"id":"lst_VPELYD4J","product_name":"Model 02 Intrinsic Fountain Pen - Kyanite","category":"Fountain Pen - Model 02","description":"\n\n\n\n\n\n\n♦ The Model 02 fountain pen is one of our long time flagship models with some unusual features. Chiefly the center barrel taper, so that the cap posts deeply. This one features our Kyanite blue acrylic.\n\nDimensions:.610\" cap diameter.550\" upper barrel diameter .445\" lower barrel diameter5.750\" capped length5.850\" cap posted length (including nib)5.150\" barrel length (including nib).44\" grip section at thinnest pointWeight without ink = .73oz / 20.71g; barrel holds approximately 3.8ml of ink when eyedroppered\n♦ Designed for writing balance with or without the cap posted. ♦ Made in USA of long lasting, durable hard acrylic that is light weight. ♦ Standard Int'l Cartridge / Converter filled, one of each included. Also can be used as an eyedropper. \n\n♦ #6 Size nib - with many tip options in factory or custom ground.♦ Lifetime Warranty. ♦ In lieu of a traditional gift box we ship with a Franklin-Christoph single pen zippered pouch (material varies) with an outer white thin box.  \n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/02KyaniteFPuncapped_178d7ab5-60bc-4e53-81e8-ec2a6c75ca74.jpg?v=1770146617","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/02KyaniteFountainPen.jpg?v=1770146617","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/02KyaniteFPPair.jpg?v=1770146617","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/02KyaniteFPpostedraven.jpg?v=1770146617","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/02KyaniteFPpostedpolishedsteel.jpg?v=1770146617"],"price":160,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.143Z"},"share_url":"https://firestarter.network/l/lst_VPELYD4J","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_VPELYD4J' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 02 Intrinsic Fountain Pen - Kyanite' and a budget_max comfortably above $160.00 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."]}}