{"type":"firestarter.listing","listing":{"id":"lst_TARvtzVD","product_name":"MRX - Arm Blaster Bicep Workouts Black","category":"Elbow Brace","description":"\n  \nPressure-point padding: Cushions high-stress areas to support your arms during intense bicep and tricep sets.\n  \nHigh-quality steel build: Withstand heavy lifting sessions and deliver long-lasting performance in the gym.\n  \nMaximum stability design: Keep your elbows locked in place to target biceps and triceps with better form.\n  \nFully adjustable fit: Customize the arm blaster to your body size for a secure, comfortable training session.\n  \nAdjustable straps for all heights: Ensure a proper fit whether you train at 5 ft or 6 ft tall.\n  \nMoney-back guarantee and free US shipping: Build confidence in your purchase with zero-risk delivery across the United States.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/eBAYMULTIDFP.jpg?v=1780605517","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/arm-blaster.jpg?v=1780605516","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/776-US-Arm-Blaster-US-Flag-1.jpg?v=1780605516","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/776-CG-1.jpg?v=1780605516","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/776-C-GRN-MAIN.jpg?v=1780605516","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/eBAYMULTIDFP_11b72a9f-66d7-49ba-847e-fe4d074487df.jpg?v=1780605517"],"price":26.99,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:55.313Z"},"share_url":"https://firestarter.network/l/lst_TARvtzVD","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_TARvtzVD' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy MRX - Arm Blaster Bicep Workouts Black' and a budget_max comfortably above $26.99 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."]}}