{"type":"firestarter.listing","listing":{"id":"lst_ivXEVFNf","product_name":"Legion Athletics - HMB","category":"Amino Acid","description":"\n\nPatented myHMB Form: Clinically effective dose of myHMB, the most studied form of HMB with over 50 peer-reviewed studies supporting its safety and efficacy.\n\nSupports Muscle Preservation During Fat Loss: HMB (Beta-Hydroxy Beta-Methylbutyrate) is a metabolite of leucine that reduces muscle protein breakdown -- especially valuable during calorie deficits.\n\nSupports Recovery and Reduced Soreness: Research shows HMB reduces exercise-induced muscle damage and improves recovery between training sessions.\n\nIdeal for Cutting Phases and Older Lifters: Most pronounced benefits appear during caloric restriction, intense training blocks, and in older adults where muscle preservation matters most.\n\nNo Proprietary Blends, No Junk: Every dose disclosed. No artificial sweeteners, dyes, fillers, or unnecessary additives.\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-HMB-1000x1000-1.png?v=1781890072","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/HMB-COA.png?v=1781834519"],"price":29.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:47.622Z"},"share_url":"https://firestarter.network/l/lst_ivXEVFNf","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_ivXEVFNf' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Legion Athletics - HMB' and a budget_max comfortably above $29.99 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."]}}