{"type":"firestarter.listing","listing":{"id":"lst_Eg0D4zaZ","product_name":"Tondo Signet Ring. Sterling Silver","category":null,"description":"\nMETAL: Sterling silver.\n\nSTYLE: With minimal lines we create timeless signet ring shapes, Tondo is our round headed signet. Considered to be a ring of the pinky finger, but we think this signet style is equally great worn on any digit.\n\nWear this signet design clean, alternatively, we can engrave your piece with a personal initial, date or a unique symbol.\nFINISH: Full polish.","images":["https://cdn.shopify.com/s/files/1/0945/5768/files/46400_SS_SP_file_900-removebg.png?v=1687771940","https://cdn.shopify.com/s/files/1/0945/5768/products/Signet_Ring_Engraving_Sheet_2_6030d02a-a1fa-4c40-bb8c-b3295134a3a1.png?v=1687771940"],"price":94,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:23.412Z"},"share_url":"https://firestarter.network/l/lst_Eg0D4zaZ","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_Eg0D4zaZ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Tondo Signet Ring. Sterling Silver' and a budget_max comfortably above $94.00 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."]}}