{"type":"firestarter.listing","listing":{"id":"lst_6UQ1wlQu","product_name":"Alpha Gripz - Extensor Trainers (Forearm Strengtheners)","category":"Grip Trainers","description":"\n\nTrain the neglected extensor muscles: The leading brand in forearm strengthening, trusted by PTs, OTs, pro athletes, and personal trainers. Engages the often-overlooked extensor muscles in the forearm.\n\nImproves grip strength + balance: Balances forearm musculature and builds functional strength in forearms, wrists, elbows, and fingers.\n\nUse cases: Rebuilding strength after injury, optimizing grip for sport, sculpting stronger and more defined arms, guarding against repetitive strain.\n\nTrain anywhere, anytime: Compact extensor bands; simple exercises at the gym, office, or home.\n\nVariants available: Complete Alpha Set ($39.99), X-treme Alpha Set ($49.99), Dial Gripz Set ($39.99), Alpha Gripz Trio ($29.99), PT Rehab Kit ($44.99), Level 1 Green 6 lb solo ($14.99).\n\nUSA owned and operated: 2-year satisfaction guarantee. Fast shipping in 2-5 days.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/ProductSliderCompleteSetAlphacopy.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/ProductSliderFPoints.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Black_Alpha_Reviews_1_v2.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/Black_Alpha_Reviews_2_v2.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/4pain_amazon.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/rock_gripz_cropped_thumbnail-3.jpg?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/rock_gripz_cropped_thumbnail-2.jpg?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/rock_gripz_cropped_thumbnail-1.jpg?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/3SETamazon.jpg?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/5activitiesamazon.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/xtremesetalphagripz2year_1080x_f09f9c18-4f56-4570-a65c-945a205e4b2a.webp?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/alphagripzcompleteptkit-1_acbbeca5-2196-4c42-b7e2-268f1173a482.jpg?v=1780603437","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/xtremegripzproductphotosalpha_305af9fd-8834-4fa5-a01f-9907e258f74f.jpg?v=1780603438","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/2ProductSetDialGripSetAlpha2year_8a31a82a-e41a-4e82-999b-7578821da5fc.jpg?v=1781747219"],"price":39.99,"currency":"USD","in_stock":true,"inventory_qty":89991,"dynamic_pricing":false,"listed_at":"2026-07-03T16:00:56.726Z"},"share_url":"https://firestarter.network/l/lst_6UQ1wlQu","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_6UQ1wlQu' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Alpha Gripz - Extensor Trainers (Forearm Strengtheners)' and a budget_max comfortably above $39.99 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."]}}