{"type":"firestarter.listing","listing":{"id":"lst_GTQ_L1wc","product_name":"5-Pack | Extra Fine Nibs #5 Bundle","category":"Nib","description":"5 Nibs for $29 Bundle Pack\nNOTICE: This #5 nib bundle, while not compatible with our in-house produced pens, is the second most common nib size in the fountain pen industry. \nWe've been holding these exceptional Nemosine #5 nibs in our inventory, and as we don't have a corresponding pen on our development roadmap, we're offering them at a special liquidation price. The lowest price we've found worldwide for a similar nib is $14 each, which would value this bundle at around $70.\nCrafted in Germany by skilled nib makers, this Nemosine nib features an extra fine point grade tip in #5 size. \n\nEach pack includes 5 individual loose #5 Nemosine nibs\nNibs are from the same German maker and molds first used over a decade ago\nNibs come loose in a resealable bag (no individual nib cradle)\n","images":["https://cdn.shopify.com/s/files/1/1237/1088/products/5-Pack-_5-Extra-Fine-Nibs.jpg?v=1663879933","https://cdn.shopify.com/s/files/1/1237/1088/products/IMG_2082-cut.jpg?v=1663879933"],"price":29,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:18.358Z"},"share_url":"https://firestarter.network/l/lst_GTQ_L1wc","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_GTQ_L1wc' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 5-Pack | Extra Fine Nibs #5 Bundle' and a budget_max comfortably above $29.00 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."]}}