{"type":"firestarter.listing","listing":{"id":"lst_-mDesWnf","product_name":"CfM Watercolor Postcards","category":null,"description":"These lovely postcards are a perfect way to get creative, let friends know you're thinking of them, and support the USPS, all at the same time!\n12 blank watercolor postcards, letterpressed on the back and bound/padded to be carried as a notebook, with a limited-edition color cover.\n3.75” x 6” / 140lb / acid free.  Letterpress printed by The Aesthetic Union in San Francisco.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/files/PostcardsPinkPurple_4e08d67b-23be-4d9a-993d-2a44185f1f04.jpg?v=1716326023","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/postcardssmallcloseup_f805ab10-7f27-445c-8bf8-cd20061dbc72.jpg?v=1716326023"],"price":10,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.533Z"},"share_url":"https://firestarter.network/l/lst_-mDesWnf","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_-mDesWnf' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy CfM Watercolor Postcards' and a budget_max comfortably above $10.00 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."]}}