{"type":"firestarter.listing","listing":{"id":"lst_iEhw3R8q","product_name":"Interstellar Bronze","category":"Ink Bottle","description":"Bending spacetime and testing the limits of rich colorant saturation, Interstellar Bronze is a mesmerizing fusion of cosmic curiosity. This ultra-saturated hue shows a rich bronze-brown base that's overwhelmed with galactic fluorescent green sheen on slightly hydrophobic fountain-pen-friendly papers. Curiously purple-hued in the bottle, Interstellar Bronze is part of our traditional dye-colorant Keystone Formula writing ink series.\nSince this is an extremely saturated ink, some pens may operate on the dry side. Frequent pen cleaning is suggested and could require extra effort, but the dye colorants are entirely water-soluble. This supersaturated hue performs best with broad point-grade nibs or thicker. Photographed color swatch was produced with cotton swab on Tomoe River paper. \n\nFeatured writing ink is designed for a fountain pen paired with common quality writing papers. The 90mL volume delivers approximately 112 standard converter refills with a 0.8mL draw. We manufacture this product in Pennsylvania with domestic and imported ingredients.","images":["https://cdn.shopify.com/s/files/1/1237/1088/files/Interstellar_Bronze.jpg?v=1774542325","https://cdn.shopify.com/s/files/1/1237/1088/files/Interstellar_Bronze_97fd45be-7543-4952-a57c-6e364cff7407.jpg?v=1779376567","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":"2026-06-18T20:47:18.482Z"},"share_url":"https://firestarter.network/l/lst_iEhw3R8q","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_iEhw3R8q' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Interstellar Bronze' 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."]}}