{"type":"firestarter.listing","listing":{"id":"lst_mpw_3vEr","product_name":"Hydra Half Rack Builder (3\" x 3\", ⅝\" Holes)","category":"Power Rack","description":"With this Half Rack, your home gym will be so optimized that they'll be calling you The Jacked Effi-cionado.Its 1,000-pound capacity outlasts heavy squats, handles big bench presses and withstands chin-ups with 8 kids hanging onto your waist. The uprights measure true 3\" x 3\" which is EXACTLY 76.2mm x 76.2mm, instead of the typical 75mm x 75mm uprights of other brands' imported racks.By matching the same tubing specs as many of our American competitors, you can mix and match attachments freely without needing to stick to one brand - hello, open ecosystem! Built with modular components, so you can expand it later into a larger Hydra rack to accommodate a new home gym space or team workouts with your swolemate. Compatible with all Hydra rack attachments, like the hyper-versatile Hydra Lat Pulldown (but requires a Rear Base Stabilizer & upper crossmember).IMPORTANT: The Hydra series of power racks are TRUE 3\" x 3\" tubing with 5/8\" holes, so only Hydra attachments & non-B.o.S. attachments made precisely for 76.2mm x 76.2mm uprights with 5/8\" holes will fit.","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/Hydra_Half_Rack_Builder_3__x_3____Holes_A.jpg?v=1782374229","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/Hydra_Half_Rack_Builder_3__x_3____Holes_-_02.jpg?v=1782374230","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-01.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-02.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-03.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-04.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-05.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-06.jpg?v=1774886172","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/half-rck-hdr-bld-07.jpg?v=1774886172"],"price":0,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.913Z"},"share_url":"https://firestarter.network/l/lst_mpw_3vEr","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 ","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_mpw_3vEr' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Hydra Half Rack Builder (3\" x 3\", ⅝\" Holes)' and a budget_max comfortably above $0.00 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."]}}