{"type":"firestarter.listing","listing":{"id":"lst_Vjtb0M54","product_name":"Flat-Iron Tricep Press Cable Attachment","category":null,"description":"Meet the Flat Iron Tricep Press Bar: the carabiner compatible cable attachment that forces perfect form, isolates your triceps, and tells wrist and elbow pain to take a hike.Instead of gripping and ripping, you press with your palms. That means max tricep activation with zero strain. Beginners love how easy it makes finding their triceps, and advanced lifters dig the variety it adds to their cable lineup.It’s not just for pressdowns, either; smash out curls and pullovers, too. Pick the 16.5\" bar for focused tricep work or the 25.5\" bar for wider grips and more exercise options. Both are built from 6.5mm steel, tough enough to outlast your gym excuses.Cleaner form. Better activation. Less pain. More gains.IMPORTANT: Attaches to any cable machine with carabiner. Carabiner not included.","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/flt-press-ha-thumbnail.jpg?v=1770465802","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/lng-flt-press-ha-thumbnail.jpg?v=1770465802"],"price":44.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.296Z"},"share_url":"https://firestarter.network/l/lst_Vjtb0M54","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_Vjtb0M54' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Flat-Iron Tricep Press Cable Attachment' and a budget_max comfortably above $44.99 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."]}}