{"type":"firestarter.listing","listing":{"id":"lst_GmchJGrm","product_name":"Spare Silicone Rubber O-Rings","category":"Pen","description":"Here are a selection of Silicone Rubber O-Rings that fit into our pens.\nWe are selling these as individual O-rings and not as kits.\nThe O-Ring replacement process inside a grip or cap can be challenging. You will need some tweezers and some patience. \nA touch of silicone grease should be lightly applied after installation if you have some on hand (a very small amount, almost imperceptible) \nHere is a video link for a P6 O-ring swap which is similar to the inside O-rings on all our parts.","images":["https://cdn.shopify.com/s/files/1/0281/7862/files/IMG_0003_1.jpg?v=1696443191"],"price":1,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:17.218Z"},"share_url":"https://firestarter.network/l/lst_GmchJGrm","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_GmchJGrm' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Spare Silicone Rubber O-Rings' and a budget_max comfortably above $1.00 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."]}}