{"type":"firestarter.listing","listing":{"id":"lst_kGdEV-Yi","product_name":"Legion Athletics - Vitamin D+K","category":"Vitamin","description":"\n\nClinically Effective D and K Stack: 2,000 IU (50 mcg) Vitamin D3, 100 mcg Vitamin K1, and 180 mcg Vitamin K2 (MK-7) in every capsule.\n\nVitamin D3 (Cholecalciferol): The active form of vitamin D supports immune function, bone health, mood, cardiovascular health, and healthy testosterone in men.\n\nVitamin K1 and K2 Together: K1 supports cardiovascular health; K2 (MK-7) directs calcium to bones rather than arteries, supporting bone density and cardiovascular health.\n\nSynergistic Formulation: D3 and K2 work together -- D3 increases calcium absorption, while K2 ensures that calcium is deposited in bone rather than soft tissues.\n\nNo Artificial Junk: No artificial sweeteners, dyes, fillers, or unnecessary additives. Independently certified by Labdoor.\n\nLab-Tested, USA-Made: Certified to meet or exceed FDA and WADA safety guidelines. Manufactured under cGMP standards.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Image-1-Carousel-Vitamin-DK-Photoshoped-1000x1000-1.png?v=1781889851","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Image-2-Carousel-Suppl-Facts-Vitamin-DK.png?v=1781890735","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Vitamin-DK-COA.png?v=1781890734","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/VitaminDK-Labdoor-Combined.png?v=1781890735"],"price":39.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:47.635Z"},"share_url":"https://firestarter.network/l/lst_kGdEV-Yi","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_kGdEV-Yi' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Legion Athletics - Vitamin D+K' and a budget_max comfortably above $39.99 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."]}}