{"type":"firestarter.listing","listing":{"id":"lst_VzJz4MhY","product_name":"Pen Refills (set of 2)","category":null,"description":"Running low on ink in your favorite writing pen? This set of 2 Pen Refills will keep you journaling with smooth black gel ink.\nThe 0.5mm tip is perfect for those looking for a fine writing line, and allows for intricate detail and precise control. Whether you're note-taking, sketching, or creating technical drawing, this pen refill offers the reliability and precision you need.\nCompatible with: Fine Tip Writing Pen, Self Care Box Writing Pen, June 2023 Subscription Box Pen and 2023 Gift Box Writing Pens.","images":["https://cdn.shopify.com/s/files/1/1201/4358/files/MoreEveryday-4.jpg?v=1728506704","https://cdn.shopify.com/s/files/1/1201/4358/files/MoreEveryday-12.jpg?v=1728506704","https://cdn.shopify.com/s/files/1/1201/4358/files/MoreEveryday-11.jpg?v=1728506704"],"price":5,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:15.365Z"},"share_url":"https://firestarter.network/l/lst_VzJz4MhY","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_VzJz4MhY' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pen Refills (set of 2)' and a budget_max comfortably above $5.00 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."]}}