{"type":"firestarter.listing","listing":{"id":"lst_xV3jvD-C","product_name":"Grip Better - Intermediate Grip Ring (Black 40 LB)","category":"Grip Trainers","description":"\n\nBlack ring, 40 lb resistance: The mid-range Grip Better ring -- challenging enough to push beyond beginner work, foundational enough for sustained training.\n\nStrength building plus stamina: A middle ground that supports both crushing-strength reps and endurance holds.\n\nSustainably-sourced natural rubber: Natural rubber construction built for resistance and durability.\n\nPocket-sized take-anywhere trainer: Toss it in a gym bag, backpack, or desk drawer for grip work during downtime.\n\nStep-up from the Green 30 lb: Natural next ring after building base grip strength with the Beginner.\n\nStep-down from the Red 50 lb: A more accessible challenge before progressing to the Advanced ring.\n","images":["https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_9586_-_Edited_-_Edited_-_Edited.jpg?v=1780605208","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_9593_-_Edited.jpg?v=1780605209","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_9581_-_Edited.jpg?v=1780605209","https://cdn.shopify.com/s/files/1/0508/3670/1334/files/IMG_9600_-_Edited_d08222a1-2bdf-4016-b1b7-b0a62f30c76e.jpg?v=1780605209"],"price":14.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:00:56.808Z"},"share_url":"https://firestarter.network/l/lst_xV3jvD-C","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_xV3jvD-C' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Grip Better - Intermediate Grip Ring (Black 40 LB)' and a budget_max comfortably above $14.99 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."]}}