{"type":"firestarter.listing","listing":{"id":"lst_02CBUgih","product_name":"Model 20 Copper Rising Rollerball","category":"Rollerball","description":"\n\n\n\nReleased at the Decemeber '24 Online Pen Show, this is a new colorway in our Model 20 Rollerball we call Copper Rising. The acrylic copper color will shimmer on two sides, and darken on two sides. Barrel and finial in black.  \n♦ The 20 Marietta rollerballs are capped with clips, with the pressure fit capping and posting system. \n♦ Dimensions:  5.0\" from nib tip to barrel end = 127mm5.45\" capped length = 138.43mm\n6.125\" cap posted length from nib tip to cap top = 156mm2.175\" cap = 55.25mm.575\" cap diameter = 14.61mm.51\" barrel diameter = 12.95mm.41\" smallest diameter of grip section = 10.41mm \n♦ Lifetime warranty / 30 day money back guarantee♦ All 20 Marietta rollerballs come with a Franklin-Christoph 888 refill found here.♦ $150.00 each♦ Shipped in a single pen zippered pouch. \n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/20CopperRisingRollerball.jpg?v=1733693238","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/20CopperRisingRBposted.jpg?v=1733693240","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/20CopperRisingRBside.jpg?v=1733693243","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/20CopperRisingRBcapped.jpg?v=1733693245"],"price":150,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.304Z"},"share_url":"https://firestarter.network/l/lst_02CBUgih","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_02CBUgih' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 20 Copper Rising Rollerball' and a budget_max comfortably above $150.00 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."]}}