{"type":"firestarter.listing","listing":{"id":"lst_hR3bh9C2","product_name":"Arches Cold Press Watercolor Blocks","category":null,"description":"Arches 100% cotton, acid free and PH-neutral paper is mould-made, gelatin-sized and air-dried in France—the best of the best for five centuries! When you're ready to try a beautiful quality paper there's truly nothing nicer.\nEach block includes 20 sheets of natural white, cold pressed paper with a black protective sheet on top—make sure to remove this sheet to get started! The blocks are glued on three sides so that your work dries flat; simple use a bone folder or butter knife to loosen each piece when finished!","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/files/ArchesColdPress_edit.jpg?v=1698867081"],"price":40,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.569Z"},"share_url":"https://firestarter.network/l/lst_hR3bh9C2","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_hR3bh9C2' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Arches Cold Press Watercolor Blocks' and a budget_max comfortably above $40.00 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."]}}