{"type":"firestarter.listing","listing":{"id":"lst_RtMza7Cx","product_name":"Sterling Silver Opal & CZ Flatback Earring","category":"Earrings > Cartilage","description":"Opal &amp; CZ Flatback Cartilage Earring. Pear shape Opal atop a round CZ stone. Post stud with cylindrical ball screw fitting at the back.\nSterling Silver (925) Earring measures: 5.3mm (h) x 2.5mm (w)Opal stone: 3mmCZ measures: 1.5mmSold as a single stud earringBack of stud screw fixture - internally threadedBar thickness measures = 0.8mmBar length measures = 8mm\nGift ready - branded cotton gift bag included.\n\n\n\n\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0247/1034/8875/files/M6-SB-0731-SS-OPA-0_2.jpg?v=1774520075","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/AC2A7695_copy_0983_0731.jpg?v=1776086998","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/M6-SB-0731-SS-OPA-0_1.jpg?v=1776086998","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/AC2A7983_copy_0731.jpg?v=1776683791"],"price":27,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:44.214Z"},"share_url":"https://firestarter.network/l/lst_RtMza7Cx","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_RtMza7Cx' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sterling Silver Opal & CZ Flatback Earring' and a budget_max comfortably above $27.00 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."]}}