{"type":"firestarter.listing","listing":{"id":"lst_ge5j848E","product_name":"Fat Bar - Single D Handle","category":"Cable Attachment","description":"Isolate your arms, chest &amp; more! The Fat Bar Single D Handle is excellent for curls, shoulder raises and chest flies, while building gorilla-like grip.Whether you’re into grappling sports, arm wrestling, or just want to build your grip strength, fat bar attachments are a game-changer. Their unique design builds your grip in ways that typical cable attachments can’t match.Compatible with any cable machine using a carabiner, the fat handle rotates freely to ensure buttery-smooth reps. \nIMPORTANT: Requires a carabiner (not included by default) for use on your cable machine. ","images":["https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-01.jpg?v=1783423910","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-02.jpg?v=1783423910","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-03.jpg?v=1783423910","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-04.jpg?v=1783423910","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-05.jpg?v=1783423910","https://cdn.shopify.com/s/files/1/0654/3346/9125/files/SD-FAT-05-1.jpg?v=1783423910"],"price":47.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:45.992Z","product_rating":null,"product_rating_count":0,"seller_rating":null,"seller_rating_count":0,"units_sold":0,"reviews":{"count":0,"top":[]},"videos":[]},"share_url":"https://firestarter.network/l/lst_ge5j848E","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_ge5j848E' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Fat Bar - Single D Handle' and a budget_max comfortably above $47.99 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."]}}