{"type":"firestarter.listing","listing":{"id":"lst_ieMYB_ph","product_name":"Weightlifting Chain Sets","category":"Barbell Accessory","description":"Our rust-resistant, zinc-plated chains are perfect for busting through sticking points and plateaus by adding progressive resistance to your training regimen.Choose sets ranging from 5lbs to 107lbs, with an easy-to-use feeder chain for easy loading.Similar to resistance bands, the chains you are lifting progressively become heavier, providing maximum muscular stimulation throughout the entire range of motion. At the bottom of a squat or bench, the chains pool on the floor and ease the burden. Near the top, things get HEAVY. They also look and sound totally badass. \nHow much chain do I need?\n\n\nIf you bench press\nChain Weight\n\n\nUnder 200lbs bench\n20-30 lbs\n\n\n200-400lbs bench\n40-50 lbs\n\n\n400-500lbs bench\n80-90 lbs\n\n\n+500lbs bench\n80-90 lbs\n\n\n\n\n\nIf you squat\nChain Weight\n\n\nUnder 200lbs squat\n40-50 lbs\n\n\n200-400lbs squat\n50-60 lbs\n\n\n400-500lbs squat\n60-70 lbs\n\n\n500-600lbs squat\n80-90 lbs\n\n\n600-700lbs squat\n90-100 lbs\n\n\n+700lbs squat\n120 -140 lbs\n\n\n","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/CHAINS-PRNT-carousel-4_ea0109b7-d016-4f2d-a7f4-67c5bd08a150.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/CHAINS-PRNT-carousel-1_788b9976-091f-4fa1-abf1-488d457b205e.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/CHAINS-PRNT-carousel-2_41c25f7a-fe7c-4408-8232-1d523f9071fa.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/CHAINS-PRNT-carousel-3_af7a472e-d093-44a8-8f9f-fe6fa6c0acb1.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/28-CHN-SET-carousel-primary.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/44-CHN-SET-carousel-primary.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/51-CHN-SET-carousel-primary.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/74-CHN-SET-carousel-primary.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/83-CHN-SET-carousel-primary.jpg?v=1764592988","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/107-CHN-SET-carousel-primary.jpg?v=1764592988"],"price":89.99,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.424Z"},"share_url":"https://firestarter.network/l/lst_ieMYB_ph","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_ieMYB_ph' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Weightlifting Chain Sets' and a budget_max comfortably above $89.99 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."]}}