{"type":"firestarter.listing","listing":{"id":"lst_X5uSEAPw","product_name":"GAMMA Sapphire Tennis String","category":"Tennis String","description":"Sapphire Tennis String","images":["https://cdn.shopify.com/s/files/1/0742/9740/9851/products/gamma-sapphire-tennis-string-gsaph10-524916.jpg?v=1761150475","https://cdn.shopify.com/s/files/1/0742/9740/9851/products/gamma-sapphire-tennis-string-gsaph10-217526.jpg?v=1761150479","https://cdn.shopify.com/s/files/1/0742/9740/9851/products/gamma-sapphire-tennis-string-gsaph11-974876.jpg?v=1761150479","https://cdn.shopify.com/s/files/1/0742/9740/9851/products/gamma-sapphire-tennis-string-gsaph11-470894.jpg?v=1761150483","https://cdn.shopify.com/s/files/1/0742/9740/9851/products/gamma-sapphire-tennis-string-gsaph11-651902.jpg?v=1761150486"],"price":4,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:58.846Z"},"share_url":"https://firestarter.network/l/lst_X5uSEAPw","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_X5uSEAPw' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy GAMMA Sapphire Tennis String' and a budget_max comfortably above $4.00 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."]}}