{"type":"firestarter.listing","listing":{"id":"lst_O4QXwGIe","product_name":"Pro Compression - Marathon, Black on Black","category":"Crew Sock","description":"\n\nTrue graduated compression: Improve leg circulation to perform long distances and deliver quicker recovery after training.\n\nWide-Calf sizes: Ensure a comfortable, effective knee-high fit for bigger calves during runs and long shifts.\n\nTargeted support design: Provide leg stability to improve endurance and perform long races and on-your-feet days.\n\nMoisture-wicking fabric blend: Keep feet dry to resist chafing and blisters on long distances and in warm conditions.\n\nKnee-high over-the-calf fit: Provide leg coverage to support travel, races, and long shifts on your feet.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-1.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-2.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-3.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-4.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-5.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-6.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-7.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/03122022-Knee-High-Compression-Socks-Marathon-Black-on-Black-8.jpg?v=1780603498","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/WCBlackonBlack_1_e87b7ed6-d9f2-45c2-9612-eceb027c4033.jpg?v=1780603499"],"price":35,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:03.114Z"},"share_url":"https://firestarter.network/l/lst_O4QXwGIe","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_O4QXwGIe' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pro Compression - Marathon, Black on Black' and a budget_max comfortably above $35.00 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."]}}