{"type":"firestarter.listing","listing":{"id":"lst_sFgtcE70","product_name":"The Original Stick - 5\" Foam Massage Ball","category":"Massage Tools","description":"\n\n5-inch diameter for broad muscle coverage: 12 cm ball size hits glutes, hamstrings, hip flexors, IT band, and the larger muscles of the upper back without the sharp pinpoint pressure of a smaller ball.\n\nHigh-density foam construction: Firm enough to deliver pressure into knots and tight tissue, soft enough to be comfortable when you load it against a wall or floor.\n\nMulti-directional roll: Rolls in any direction so you can chase the exact angle a trigger point needs -- not locked to a single axis like a foam roller.\n\nPromotes mobility and flexibility: Sustained pressure on tight tissue helps reduce stiffness and supports the range-of-motion work you do elsewhere in your routine.\n\nReduces muscle fatigue and tightness: Use post-training to address day-of soreness, or daily for maintenance work on areas that chronically hold tension.\n\nWall, floor, and self-applied use: Position the ball between your body and a wall, lie on it on the floor, or press it into a muscle by hand -- one tool, multiple recovery techniques.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSF-Massage-Ball_Main-Image-On-Gray_1.jpg?v=1780604109","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSF-Black-Massage-Ball_In-Use-On-Yoga-Mat-Pink_1_0a7ac70a-42d3-43a7-b5b8-9fdeb3040776.jpg?v=1780604109","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSF-Black-Massage-Ball-2020_-Jacob-IT-Band_1_dbb37455-30a9-456b-a2ce-f9f1ad53ec12.jpg?v=1780604109","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/SSF-Black-Massage-Ball_On-White-3_1500x1500_82e67b69-7965-4267-bf07-6e54383e0215.jpg?v=1780604109"],"price":18.9,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:47.709Z"},"share_url":"https://firestarter.network/l/lst_sFgtcE70","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_sFgtcE70' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy The Original Stick - 5\" Foam Massage Ball' and a budget_max comfortably above $18.90 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."]}}