{"type":"firestarter.listing","listing":{"id":"lst_C9JAXjs6","product_name":"Green Grape Tomato","category":"Vegetables","description":"Developed at Cornell University, Green Grape is a sweet green sensation for your palate. Like all grape tomatoes, it pops in the mouth with a tangy sweetness. It yields loads of fruit in big clusters; the small fruits' green appearance belies their flavor, which is fresh, bright, and sweet. Green Grape pairs beautifully with other colored cherries in a summer salad. Like all green tomatoes, ripeness is discernible from the color (a light hint of orangey-yellow develops behind the green), from touch (the fruit grow slightly softer), and from the ease at which the fruit detach from the stem (they should fall off with a very gentle nudge). Indeterminate.","images":["https://cdn.shopify.com/s/files/1/0072/0909/1117/files/61D71974-0326-4F99-9C0B-9F02CB16DD74.jpg?v=1735578776"],"price":4.99,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:35.448Z"},"share_url":"https://firestarter.network/l/lst_C9JAXjs6","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_C9JAXjs6' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Green Grape Tomato' and a budget_max comfortably above $4.99 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."]}}