{"type":"firestarter.listing","listing":{"id":"lst_1rpGVHeI","product_name":"Studio Glass - Dual-Tip Artist's Pen","category":"Calligraphy","description":"Heritage meets contemporary design\nSay hello to our Dual-Tip Glass Dip Pen – a very special artist's tool. Each pen is handcrafted by Jake, a talented glass artist from Somerset, ensuring no two are ever the same. With uniquely coloured glass, this pen is as beautiful as it is functional, giving you a one-of-a-kind writing experience every time.\nA spot of context: I love a glass dip pen, the subtle 'bite' the nib has on the page, the ability to use any kind of ink and still be easy to clean and of course the wondrous beauty of glass. It's one of those designs that has stayed the same for hundreds of years, and rightly so. However, as a designer, I couldn't resist the challenge of making it more relevant to a modern audience...\nThe genius of this pen lies in its versatility: one end has a fine nib for those delicate, detailed strokes, while the other sports a medium nib for bolder, thicker lines. Whether you're working on intricate monoline calligraphy or a flowing illustration, switching between nibs is effortless – just flip the pen and go! It also means you can use two ink colours at a time!\nThanks to the spiral grooves in the nib, you’ll get a smooth and consistent ink flow that lasts line after line, keeping your creativity in full swing. Plus, it's surprisingly comfy to hold, even for long writing sessions.\nBest used with fountain pen ink, but it also works a treat with calligraphy ink – just thin it down a bit if needed. This pen is your go-to for versatile, stylish writing that never skips a beat.\nPlease note: Rosewater is a newly reformulated version of our original Pale Rose. It has a lighter, softer tint than the previous batch, so it won’t be an exact match if you own the earlier shade.\n","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_All_Square_Cover.jpg?v=1763562855","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_All_Square.jpg?v=1763716742","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_Teal_Square_v2.jpg?v=1745323362","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_Deep_Cobalt_Square.jpg?v=1745323362","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_Teal_Square.jpg?v=1745323362","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_Pale_Rose_Square.jpg?v=1763562895","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_Pale_Rose_Packaging_Square.jpg?v=1763562908","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/Studio_Glass_Dual_Tip_Artist_s_Pen_All_Square_Cover_v2.jpg?v=1763562864"],"price":108,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.826Z"},"share_url":"https://firestarter.network/l/lst_1rpGVHeI","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_1rpGVHeI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Studio Glass - Dual-Tip Artist's Pen' and a budget_max comfortably above $108.00 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."]}}