{"type":"firestarter.listing","listing":{"id":"lst_2NcXcxOI","product_name":"Keychron K12 Keycap Set","category":"Keycaps","description":"Note:\n\n1. Keychron Q4 and V4 share the same keycap size as the K12, so this keycap set is also compatible with Q4 and V4.\n\n\n2. The Backlight Shine Through version is designed to shine through the north-facing backlight keyboards (e.g.: K12), so the shine-through effect on the south-facing backlight keyboards (e.g.: Q4 and V4) may not be that visible.\n\n\nPlease drop your email on \"Notify Me When Available\" if the product model is out of stock.","images":["https://cdn.shopify.com/s/files/1/0059/0630/1017/products/Keychron-K12-keyboard-Grey-Keycap-Set.jpg?v=1618228617","https://cdn.shopify.com/s/files/1/0059/0630/1017/products/Keychron-K12-keyboard-black-white-Keycap-Set3.jpg?v=1619176052","https://cdn.shopify.com/s/files/1/0059/0630/1017/products/Keychron-K12-keyboard-White-Black-Keycap-Set2.jpg?v=1619780711"],"price":12.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:19.012Z"},"share_url":"https://firestarter.network/l/lst_2NcXcxOI","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_2NcXcxOI' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Keychron K12 Keycap Set' and a budget_max comfortably above $12.99 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."]}}