{"type":"firestarter.listing","listing":{"id":"lst_77dcFeTW","product_name":"John Lennon John & Yoko Polyester Guitar Strap","category":"Accessories","description":"Lennon Art Series Strap – John &amp; Yoko features artwork based on original drawings by Lennon himself, depicting the life and love he shared with Yoko Ono. Made from durable polyester and adjustable from 35\" to 59.5\", it’s a functional tribute to one of music’s most iconic collaborations.","images":["https://cdn.shopify.com/s/files/1/0669/6042/5025/files/da_50JL02_main1_transparent_web.png?v=1773014172","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/da_50JL02_detail1a_transparent_web.png?v=1773014172","https://cdn.shopify.com/s/files/1/0669/6042/5025/files/da_50JL02_detail2a_transparent_web.png?v=1773014172"],"price":29.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.636Z"},"share_url":"https://firestarter.network/l/lst_77dcFeTW","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_77dcFeTW' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy John Lennon John & Yoko Polyester Guitar Strap' and a budget_max comfortably above $29.99 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."]}}