{"type":"firestarter.listing","listing":{"id":"lst_zWKTKyWv","product_name":"Vintage Masonic Rectangular Enamel Pin","category":"Accessories, Vintage","description":"This is a really nice Masonic enamel pin with the square and compass logo nested in a rectangular frame. It's in really good shape with vibrant colors and clean enamel.","images":["https://cdn.shopify.com/s/files/1/1798/2671/files/VINTAGE-MASONIC-RECTANGULAR-ENAMEL-PIN-FRONT_93ffe37a-6218-4d9a-83d8-2bd6dc3923bf.jpg?v=1775190658","https://cdn.shopify.com/s/files/1/1798/2671/files/VINTAGE-MASONIC-RECTANGULAR-ENAMEL-PIN-SIZE-REFERENCE_473f3f52-27ad-4bf2-9ebc-ba0982ad8856.jpg?v=1775190659","https://cdn.shopify.com/s/files/1/1798/2671/files/VINTAGE-MASONIC-RECTANGULAR-ENAMEL-PIN-BACK_a39652fe-d323-44b8-b598-731b6467e6e5.jpg?v=1775190659"],"price":12,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:39.549Z"},"share_url":"https://firestarter.network/l/lst_zWKTKyWv","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_zWKTKyWv' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Vintage Masonic Rectangular Enamel Pin' and a budget_max comfortably above $12.00 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."]}}