{"type":"firestarter.listing","listing":{"id":"lst_vDBZ-2G6","product_name":"Writing Ink Graduate Set","category":null,"description":"Spouted rim conical reservoirs are ideal for decanting writing ink, filling fountain pens from the nib, drawing ink with a removable converter, and delivering a clean, controlled pour. Each set includes one 12 mL and one 25 mL polypropylene graduate, with approximated markings at each 1 mL step.\nThe plastic may stain when used with inks containing non-water-soluble colorants, including some pigmented or permanent inks. Staining will not affect the integrity or function of the vessel under normal use. This product is made in India.\n12mL Graduate Specs:Height: 65mmOpen Diameter: 31mm (rim OD without spout)\n25mL Graduate Specs:Height: 70mmOpen Diameter: 49mm (rim OD without spout)\n**Pictured with removable ink converter (not included) for scale.","images":["https://cdn.shopify.com/s/files/1/1237/1088/files/Ink_Vessel_Filled.jpg?v=1781644905","https://cdn.shopify.com/s/files/1/1237/1088/files/Ink_Vessel_Empty.jpg?v=1781644917","https://cdn.shopify.com/s/files/1/1237/1088/files/Conical-Graduate-Top.jpg?v=1781645110","https://cdn.shopify.com/s/files/1/1237/1088/files/Graduates-With-Converter.jpg?v=1781904163","https://cdn.shopify.com/s/files/1/1237/1088/files/Square-Box.jpg?v=1781645648"],"price":15,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:18.144Z"},"share_url":"https://firestarter.network/l/lst_vDBZ-2G6","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_vDBZ-2G6' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Writing Ink Graduate Set' and a budget_max comfortably above $15.00 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."]}}