{"type":"firestarter.listing","listing":{"id":"lst_darv5qSv","product_name":"Air Mail Letter Writing Set","category":"Desk & Library","description":"There was a time when mail felt a little more exciting. This set brings that back, with classic air mail borders that make even a short note feel like it’s going somewhere important.","images":["https://cdn.shopify.com/s/files/1/0088/6620/1680/files/AirMail.jpg?v=1777321186","https://cdn.shopify.com/s/files/1/0088/6620/1680/files/AirMail_1f91a27f-3a73-4ec0-88e3-0c6f0c539f54.jpg?v=1777321191"],"price":20,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:27.712Z"},"share_url":"https://firestarter.network/l/lst_darv5qSv","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_darv5qSv' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Air Mail Letter Writing Set' and a budget_max comfortably above $20.00 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."]}}