{"type":"firestarter.listing","listing":{"id":"lst_emWuU-ap","product_name":"Arc Backpack Belt","category":"Backpacks : Accessories","description":"Our Arc backpacks feature a removable and interchangeable belt. This is a useful feature if you lose or gain weight, or if the pack is transferred to a different size person. If the belt wears out before the rest of the pack you could replace it.A 10.5\" horizontal belt stay is required to attach a belt to one of our framed packs.  The stay is NOT included with the belt, but they can be found for purchase here.","images":["https://cdn.shopify.com/s/files/1/0004/4652/9572/products/0DFB0273-9571-4FD3-9C50-7253A6AB7102_1_105_c.jpg?v=1643312683","https://cdn.shopify.com/s/files/1/0004/4652/9572/files/zpacks-arc-pack-belt-attachment.webp?v=1756924249"],"price":59.95,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:39.369Z"},"share_url":"https://firestarter.network/l/lst_emWuU-ap","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_emWuU-ap' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Arc Backpack Belt' and a budget_max comfortably above $59.95 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."]}}