{"type":"firestarter.listing","listing":{"id":"lst_97a13cMg","product_name":"Ring Sizing Kit","category":"Objects","description":"This economical multi-size adjustable finger gauge is ideal for determining your most accurate ring size from the comfort of your home. The plastic finger gauge measures U.S. sizes 1–17 in half-size increments; the increments are clearly marked.\nWould you also like to try on a ring style in person? Order a 3d print by clicking here! ","images":["https://cdn.shopify.com/s/files/1/1994/1391/files/116213_96452ad3-d405-457b-8255-e63cdeb0b475.jpg?v=1746047242","https://cdn.shopify.com/s/files/1/1994/1391/files/116213in_1582d74e-c80b-42b0-a506-31109c787599.jpg?v=1746047241","https://cdn.shopify.com/s/files/1/1994/1391/files/116213in1_1.jpg?v=1746047242"],"price":5,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:32.826Z"},"share_url":"https://firestarter.network/l/lst_97a13cMg","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_97a13cMg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Ring Sizing Kit' and a budget_max comfortably above $5.00 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."]}}