{"type":"firestarter.listing","listing":{"id":"lst_k-3yE0jW","product_name":"Momentous - Tyrosine","category":"Vitamins & Supplements","description":"\n  \n500mg L-Tyrosine per capsule: Clinically meaningful dose of the amino acid precursor for dopamine, epinephrine, and norepinephrine.\n  \nSupports focus and motivation: L-Tyrosine provides the raw material for dopamine synthesis — the neurotransmitter most directly linked to focus, motivation, and drive.\n  \nStress resilience: Supports the body's adaptive response to acute physical and mental stress by replenishing neurotransmitters depleted under load.\n  \nCognitive performance under fatigue: Research supports tyrosine's role in maintaining mental performance during sleep deprivation, cold exposure, and high-demand cognitive tasks.\n  \nCaffeine-free — stacks with coffee: Tyrosine provides the substrate for dopamine production; caffeine helps release it. Many users find this combination delivers focus without jitters.\n  \nNSF Certified for Sport®: Independently tested for banned substances. Vegan, gluten-free, GMO-free. Take 1–2 capsules in the morning or early afternoon.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_HERO.png?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_OutcomeandBenefits.jpg?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_Ingredients.jpg?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_ProductDifferentiation.jpg?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_How-to-Use.jpg?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_Review.jpg?v=1780605149","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Tyrosine_SupplementFacts.jpg?v=1780605149"],"price":19.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:54.754Z"},"share_url":"https://firestarter.network/l/lst_k-3yE0jW","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_k-3yE0jW' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Momentous - Tyrosine' and a budget_max comfortably above $19.95 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."]}}