{"type":"firestarter.listing","listing":{"id":"lst_9VMWcX9E","product_name":"Penny signet medallion 14k gold","category":"Charm","description":"The Penny Signet medallion is a personal one. You get to choose the engraving. Handmade from solid gold. This medallion is an old time classic, but we gave it a twist with a signature bold style lettering. \n- Handmade- 14k recycled gold- Shape: 11x15mm- Weight: 1.3gr- Necklace not included- Font: Classic script.- Engraved pieces are final sale.- Previews serve as visual references. The final product may vary slightly.\nOur goldsmith and master engraver needs an average of 8 weeks to produce your showpiece.\n ","images":["https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-370983.jpg?v=1742986170","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-434048.jpg?v=1742986172","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-200588.jpg?v=1747182705","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-199434.jpg?v=1747128233","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-501004.jpg?v=1747136984","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-302771.jpg?v=1747128233","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-353185.jpg?v=1747128233","https://cdn.shopify.com/s/files/1/0272/0799/1414/files/penny-signet-medallion-14k-gold-885105.jpg?v=1747182706"],"price":459,"currency":"USD","in_stock":true,"inventory_qty":269973,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:33.979Z"},"share_url":"https://firestarter.network/l/lst_9VMWcX9E","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_9VMWcX9E' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Penny signet medallion 14k gold' and a budget_max comfortably above $459.00 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."]}}