{"type":"firestarter.listing","listing":{"id":"lst_m6WBwzMn","product_name":"Free Sample - Vitamin C Serum","category":"Free Product","description":"Reveal your skin’s natural brilliance with this lightweight serum. Combining the power of a stabilized Vitamin C derivative and superfruit Camu Camu, this targeted serum helps to improve the appearance of uneven skin tone, dark spots, and overall skin luminosity. The Signature Complex of Squalane, CoQ-10 and Safflower Oleosomes works with Green Tea Extract to help leave skin smooth, supple, and hydrated.","images":["https://cdn.shopify.com/s/files/1/0034/8759/6611/files/IL_Vitamin-C-Serum-30ml_Swatch.jpg?v=1770947536"],"price":0,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:02.692Z"},"share_url":"https://firestarter.network/l/lst_m6WBwzMn","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_m6WBwzMn' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Free Sample - Vitamin C Serum' and a budget_max comfortably above $0.00 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."]}}