{"type":"firestarter.listing","listing":{"id":"lst_FSuA_fXN","product_name":"Gold Vein Twinkle Pair","category":null,"description":"Lava Rock Twinkle flows across the page in a basaltic red that deepens into a shadowy iron ore in saturation, illuminated by a finely dispersed golden sparkle. Paired with it, Gold Vein Twinkle emerges from an umber tinted black base threaded with a luminous pigment like native gold deposits precipitated along a metamorphic rock fracture. For best color character, use a broad nib with wet flow to unlock every visual dimension.\nThese Pennsylvania-made dye–pigment hybrid fountain pen inks arrive in thick 90mL glass bottles with lined metal caps and a copper foil-stamped gift box.\n\n\nGold Vein Twinkle • $39\n\nLava Rock Twinkle • $39\n\nBundle Value: $78Order today for only: $59\n \nEach 90mL minimum volume will provide over 110 standard converter refills with an average 0.8mL draw. Rigid glass bottles arrive individually wrapped in cellulose wadding and prepared in a beautifully foiled gift box. Our ink color swatch and writing samples are produced on Tomoe River paper with a cotton swab and medium point grade nib. ","images":["https://cdn.shopify.com/s/files/1/1237/1088/files/Gold_Vein_Twinkle_Pair_9703f704-52ca-4bda-8437-41f55478ec09.jpg?v=1780417270","https://cdn.shopify.com/s/files/1/1237/1088/files/Gold_Vein_Bundle_Macro_Writing_Samples.jpg?v=1769020250","https://cdn.shopify.com/s/files/1/1237/1088/files/Gold_Vein_Twinkle_85ff53f8-0720-441a-8043-e648dc8ce858.jpg?v=1780417207","https://cdn.shopify.com/s/files/1/1237/1088/files/Lava_Rock_Twinkle_08dc308e-d93d-4146-b14b-9d557e64b7a8.jpg?v=1780417245","https://cdn.shopify.com/s/files/1/1237/1088/files/Ink_Bottle_Box.jpg?v=1774542507"],"price":59,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:18.191Z"},"share_url":"https://firestarter.network/l/lst_FSuA_fXN","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_FSuA_fXN' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Gold Vein Twinkle Pair' and a budget_max comfortably above $59.00 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."]}}