{"type":"firestarter.listing","listing":{"id":"lst_Sr1haN6n","product_name":"Mason - Men","category":"Shoes","description":"Made to make on-the-go easy, Mason is built to be your best anatomical all-day comfort kick. The lightweight cotton-lined canvas uppers stay snug with elastic laces that let you securely slip on and off when you’re ready. Feel the stretch and then return to form. Enjoy a cork footbed and antimicrobial hemp liner with or without socks. Stand on top of whatever comes your way with the heel stabilizer and cross hatched, non-marking rubber outsoles that help reduce your trace. Yes, yes, the Mason shoe is built like a rock, light like a feather and as comfortable as they come.","images":["https://cdn.shopify.com/s/files/1/0701/8479/6395/files/1_5.jpg?v=1761239876","https://cdn.shopify.com/s/files/1/0701/8479/6395/files/5_3.jpg?v=1750976755","https://cdn.shopify.com/s/files/1/0701/8479/6395/files/6_2.jpg?v=1750976755","https://cdn.shopify.com/s/files/1/0701/8479/6395/files/2_3.jpg?v=1750976755"],"price":41.97,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:04.659Z"},"share_url":"https://firestarter.network/l/lst_Sr1haN6n","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_Sr1haN6n' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mason - Men' and a budget_max comfortably above $41.97 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."]}}