{"type":"firestarter.listing","listing":{"id":"lst_PES2GQaA","product_name":"Emerald Fusion","category":"Ink Bottle","description":"Go nuclear. \nEmerald Fusion is packed with colorant and will produce a striking green sheen on common fountain pen friendly papers. This highly saturated hue may write on the dry side in some pens - get the best performance in a well flowing writer equipped with a medium point grade nib or broader. Part of our traditional dye-colorant Keystone Formula ink line, the 90mL minimum volume will provide approximately 112 standard converter refills assuming a 0.8mL draw. Our ink swatch is produced with a cotton swab on Tomoe River paper. \nPrepare for an INTENSE green sheen on fountain-pen-friendly papers like Tomoe River and Rhodia. We manufacture this ink in Pennsylvania with domestic and imported ingredients.","images":["https://cdn.shopify.com/s/files/1/1237/1088/files/Emerald_Fusion_Swatch.jpg?v=1779906346","https://cdn.shopify.com/s/files/1/1237/1088/products/Emerald-Fusion-Closeup.jpg?v=1770414702","https://cdn.shopify.com/s/files/1/1237/1088/files/Emerald_Fusion_e1baaa27-5210-4e5c-8e51-fc432c1055c4.jpg?v=1779376506","https://cdn.shopify.com/s/files/1/1237/1088/products/ink-bottle-box.jpg?v=1774542380"],"price":29,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:18.542Z"},"share_url":"https://firestarter.network/l/lst_PES2GQaA","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 ","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_PES2GQaA' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Emerald Fusion' 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."]}}