{"type":"firestarter.listing","listing":{"id":"lst_5_-UVTQd","product_name":"Sterling Silver Onyx Square Signet Ring (Mens)","category":"Rings > Signet","description":"Onyx Square Signet Ring\nSterling Silver (925) Onyx stone measures: 10mm (h) x 10mm (w)Band thickness: 3mmSold as a single ringBranded cotton gift bag included","images":["https://cdn.shopify.com/s/files/1/0247/1034/8875/files/A5-R-6126-9S-000-0_1_a5c18065-659c-46f3-b245-569404aa1ab0.jpg?v=1708938308","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/IMG_6847copy6126917987287501.jpg?v=1710779450","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/A5-R-6126-9S-000-0_3_a4495655-3fc4-42a1-a7a6-676ef709a0b2.jpg?v=1710779450","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/IMG_6825copy63964751092961263391_4010234a-e6c8-43b2-b37e-e144e942eb06.jpg?v=1710779372","https://cdn.shopify.com/s/files/1/0247/1034/8875/files/IMG_6805copy475161263391_7a854f28-e6c7-4dd2-84a2-d44cc989ef02.jpg?v=1710779371"],"price":42,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:45.473Z"},"share_url":"https://firestarter.network/l/lst_5_-UVTQd","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_5_-UVTQd' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Sterling Silver Onyx Square Signet Ring (Mens)' and a budget_max comfortably above $42.00 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."]}}