{"type":"firestarter.listing","listing":{"id":"lst_uFP5krNG","product_name":"Model 28 Ballpoint - Diamondline","category":"Ballpoint","description":"\nThe Model 28 Libertas Diamondline \n\n\nMetal parts are made of aluminum and brass, then coated in rhodium. \n\n\nSpring loaded clip\n\n\nThe 28 BP takes our Franklin-Christoph Softline 1000 (parker style) refill found here. \n\n\nBallpoint Dimensions:\n\n5.43\" length (138mm)  x  .38\" diameter (10mm)\n\nWeight= 1.091oz / 30.92grams\n\n\nLifetime Warranty - 30 day return policy \n\n\nIncluded with a single pen zippered pouch.\n","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/products/28_BP_Diamondline.jpg?v=1572988523"],"price":69.5,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.768Z"},"share_url":"https://firestarter.network/l/lst_uFP5krNG","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_uFP5krNG' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 28 Ballpoint - Diamondline' and a budget_max comfortably above $69.50 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."]}}