{"type":"firestarter.listing","listing":{"id":"lst_RN1VF7nI","product_name":"Racket Customization","category":"Tennis String","description":"Get your racket customized with our team or MRT's \n$50 per racket to get the perfect specs for you.\nAt checkout let us know the weight, balance, SW required. Or call us anytime for help.","images":["https://cdn.shopify.com/s/files/1/0253/6210/4402/products/racketcustomization_2.png?v=1762445562"],"price":50,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.801Z"},"share_url":"https://firestarter.network/l/lst_RN1VF7nI","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_RN1VF7nI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Racket Customization' and a budget_max comfortably above $50.00 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."]}}