{"type":"firestarter.listing","listing":{"id":"lst_1LeFl4Ej","product_name":"Szn Supplements - Pro-SZN Vanilla Whey Protein","category":"Whey Protein","description":"\n\nWhey protein isolate — 19g protein per scoop at 90 calories: Cold-processed whey isolate providing 19g of rapidly absorbing protein at only 90 calories per serving with 0.5g fat — optimized for post-workout recovery and lean muscle support.\n\nRich in BCAAs and leucine for muscle protein synthesis: Whey isolate's naturally high leucine content activates the mTOR pathway for muscle protein synthesis — ideal for post-workout recovery or any-time additional protein intake.\n\nClean vanilla flavor — versatile for shakes, oatmeal, and baking: Neutral vanilla works well mixed in water, dairy or plant-based milks, oatmeal, and baking applications without flavor conflict.\n\nGluten-free, no fillers, minimal ingredient list: Low calorie, low fat, easy-digesting whey isolate. Contains milk (whey source). 25 servings per container.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/wheyreadyfinal.205.jpg?v=1780595219","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/wheyreadyfinal.207.jpg?v=1780595219","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/wheyreadyfinal.206.jpg?v=1780595220","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/VanillaWheyProteinDeck.jpg?v=1780595218"],"price":41.99,"currency":"USD","in_stock":true,"inventory_qty":29997,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:53.518Z"},"share_url":"https://firestarter.network/l/lst_1LeFl4Ej","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_1LeFl4Ej' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Szn Supplements - Pro-SZN Vanilla Whey Protein' and a budget_max comfortably above $41.99 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."]}}