{"type":"firestarter.listing","listing":{"id":"lst_-e8a1HtG","product_name":"Model 55 Pentium FP - Black & Venetian Red","category":"Fountain Pen - Model 55","description":"\nThis is the latest production version of our Model 55 Pentium Fountain pen featuring Classic Black and Venetian Red. \n♦ The Model 55 Pentium features a #5 nib in an efficiently designed silhouette. Distinctly Franklin-Christoph, with beveled ends, the signature clip and softened simple features. Light weight and balanced when posting, the 55 is a good choice for long writing sessions.\n♦ This look is featuring classic black on cap, finial, and lower barrel, with a Venetian Red upper half of the barrel. Also has our rhodium plated clip with 4 engraved diamonds. \n♦ Triple filling options - cartridge / converter / eye dropper. Cartridges and converter are included. Barrel holds approximately 3.1ml of ink when eyedroppered.\n♦ Made in USA.\n♦ Lifetime warranty.\n♦ Included is our well known F-C Single Zippered pouch, instead of a traditional box. \n♦ Dimensions:\n.562\" cap diameter.500 upper barrel diameter.438 lower barrel diameter5.25\" capped length6.13\" cap posted length (including nib)4.88\" barrel length (including nib).383\" curved grip section at thinnest point\nWeight: .66oz (18.62 grams)","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/55BlackVRedFountainPen_6ab98a27-eef4-4b5d-86d0-583e2719f2ef.jpg?v=1727894549","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/55BlackVRedFPside_c508a392-ddb2-48dc-af73-09ef641b030a.jpg?v=1727894552","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/55BlackVRedFPcapped_0af7d660-e1ce-492e-9bae-9deb1fe59fc1.jpg?v=1727894553"],"price":130,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.621Z"},"share_url":"https://firestarter.network/l/lst_-e8a1HtG","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_-e8a1HtG' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 55 Pentium FP - Black & Venetian Red' and a budget_max comfortably above $130.00 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."]}}