{"type":"firestarter.listing","listing":{"id":"lst_lEVACHHr","product_name":"Pro Compression - Marathon Wide-Calf, Heather Slate","category":"Crew Sock","description":"\n\n20–30 mmHg graduated compression: Improve circulation to perform during long runs and train consistently on demanding schedules.\n\nWide-Calf sizing 2XL 20–22 in, 3XL 23–24 in, 4XL 25–26 in: Ensure a secure knee-high fit for larger calves so you can move and train with confidence.\n\nKnee-high length: Provide lower-leg coverage to support calf muscles and tendons during training, races, and long days on foot.\n\nMoisture-wicking proprietary blend: Keep legs dry and comfortable to improve focus as you train, move, and stand through long sessions.\n\nHeather Slate Marathon Wide-Calf: Deliver a refined look that pairs with training gear while you build mileage and keep outfits coordinated.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/WCHeatherSlate_eac959f7-dfc5-463e-b417-72c959b46240.jpg?v=1780605882","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSP_490_1.jpg?v=1780605883","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSP_547_1.jpg?v=1780605883","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/WCHeatherSlate_1.jpg?v=1780605882"],"price":35,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:03.110Z"},"share_url":"https://firestarter.network/l/lst_lEVACHHr","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_lEVACHHr' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pro Compression - Marathon Wide-Calf, Heather Slate' 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."]}}