{"negotiate_protocol": "negotiate.v1", "store": {"name": "Apple", "city": "Cupertino, CA", "rep_name": "Apple Specialist", "tagline": "iPhone, AirPods, Apple Watch, iPad, and accessories.", "policy": "Free delivery and free returns within 14 days. Free engraving. AppleCare+ available."}, "merchant_skill": {"name": "pier39-merchant", "repo": "https://github.com/sanjana-pier39/pier39-skills", "description": "Claude agent with the pier39-merchant skill loaded as system prompt."}, "endpoints": {"start_chat": {"method": "GET", "url_template": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id={product_id}", "params": {"product_id": "string, required, must be one of products[].id"}}, "send_message": {"method": "GET", "url_template": "https://checkout-agent.pier39.ai/apple/api/store/chat/{session_id}/say?message={url_encoded_message}"}, "read_history": {"method": "GET", "url_template": "https://checkout-agent.pier39.ai/apple/api/store/chat/{session_id}"}, "catalog": {"method": "GET", "url": "https://checkout-agent.pier39.ai/apple/api/store/catalog"}}, "products": [{"id": "apple-airpods-pro-3", "name": "AirPods Pro 3", "subtitle": "Apple", "list_price": 249, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-airpods-pro-3", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-airpods-pro-3"}, {"id": "apple-airpods-4-anc", "name": "AirPods 4 with Active Noise Cancellation", "subtitle": "Apple", "list_price": 179, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-airpods-4-anc", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-airpods-4-anc"}, {"id": "apple-watch-se", "name": "Apple Watch SE", "subtitle": "Apple", "list_price": 229, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-watch-se", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-watch-se"}, {"id": "apple-airtag-4pk", "name": "AirTag (4 Pack)", "subtitle": "Apple", "list_price": 99, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-airtag-4pk", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-airtag-4pk"}, {"id": "apple-pencil-usbc", "name": "Apple Pencil (USB-C)", "subtitle": "Apple", "list_price": 79, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-pencil-usbc", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-pencil-usbc"}, {"id": "apple-airpods-max", "name": "AirPods Max (USB-C)", "subtitle": "Apple", "list_price": 549, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-airpods-max", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-airpods-max"}, {"id": "apple-ipad-a16", "name": "iPad (A16)", "subtitle": "Apple", "list_price": 449, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-ipad-a16", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-ipad-a16"}, {"id": "apple-ipad-air-11-m3", "name": "iPad Air 11-inch (M3)", "subtitle": "Apple", "list_price": 599, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-ipad-air-11-m3", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-ipad-air-11-m3"}, {"id": "apple-homepod-mini", "name": "HomePod mini", "subtitle": "Apple", "list_price": 129, "currency": "USD", "kind": "electronics", "page_url": "https://checkout-agent.pier39.ai/apple/store/p/apple-homepod-mini", "start_chat_url": "https://checkout-agent.pier39.ai/apple/api/store/chat/start?product_id=apple-homepod-mini"}], "limits": {"currency": "USD"}}