{"type":"firestarter.listing","listing":{"id":"lst_G1b8pHD2","product_name":"Uni-ball Signo Pen","category":null,"description":"JPT America gel ink pen in black, red, and blue ink - super smooth writing, the viscous formula behind the gel ink is what sets this pen apart. The pigment contained in the ink is water resistant and light resistant. Made in Japan.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/files/UniballSignoPens_New.jpg?v=1700014502"],"price":4,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.770Z"},"share_url":"https://firestarter.network/l/lst_G1b8pHD2","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_G1b8pHD2' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Uni-ball Signo Pen' and a budget_max comfortably above $4.00 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."]}}