{"type":"firestarter.listing","listing":{"id":"lst_b-fhPBsV","product_name":"Castagnatt","category":"Double monk-straps","description":"They are the Double Monk Straps that knows how to combine elegance and classic contemporary style. With its full-grain leather and leather sole, it’s the opaque black shoe to match with a suit as the best man or a guest at a classic wedding. And its blake-rapid construction makes it very easy to resole.","images":["https://cdn.shopify.com/s/files/1/1627/0215/files/01_castagnatt_n.jpg?v=1757336013","https://cdn.shopify.com/s/files/1/1627/0215/files/02_castagnatt_n.jpg?v=1757336013","https://cdn.shopify.com/s/files/1/1627/0215/files/03_castagnatt_n.jpg?v=1757336015","https://cdn.shopify.com/s/files/1/1627/0215/files/04_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/05_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/06_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/07_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/08_castagnatt_n.jpg?v=1757336013","https://cdn.shopify.com/s/files/1/1627/0215/files/09_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/10_castagnatt_n.jpg?v=1757336013","https://cdn.shopify.com/s/files/1/1627/0215/files/11_castagnatt_n.jpg?v=1757336013","https://cdn.shopify.com/s/files/1/1627/0215/files/ZX_castagnatt_n.jpg?v=1757336014","https://cdn.shopify.com/s/files/1/1627/0215/files/ZZ_castagnatt_n.jpg?v=1757336014"],"price":276,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:18.644Z"},"share_url":"https://firestarter.network/l/lst_b-fhPBsV","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_b-fhPBsV' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Castagnatt' and a budget_max comfortably above $276.00 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."]}}