Penny in ChatGPT helps you find great products and keep tabs on prices—without leaving the chat. Tell Penny what you’re shopping for (or upload a photo to find similar items), browse options, and ask questions to choose the right one. When you find something you like, Penny can start price tracking so you’ll know if the price changes. For example, try: “Penny, find cool funky socks,” “Penny, find shoes like this” (with an image), or “Penny, start price tracking the jacket I liked best.”
get_product_detailsRetrieves detailed product information (materials, sizing, care instructions, variants) for products found via Penny. Best used for follow-up questions about specific products.
productIdsarrayProduct IDs to get details for.
search_productsSearches for products across all available brands and stores via Penny. Supports text queries, image-based visual search, and optional filters (gender, price range, condition, etc.). Filters should reflect the user's request; unspecified filters are omitted. For visual search: prioritize image_url if provided, then image_index for png/jpeg/webp uploads, otherwise use a text description of the image. This catalog only contains physical, shippable products. It does not carry digital goods, gift cards, e-books, software, subscriptions, event tickets, or similar non-physical items. If the user asks for these, let them know they are not available rather than searching. Returns product results for browsing or price tracking.
initialQuerystringThe raw user query that led to this search.
searchesarrayArray of search items. Include all user requests in a single call.
uploadedImagesarrayArray of uploaded images from user. Each search can reference an image by its index in this array using imageIndex.
show_tracked_productsFetches all products the user is currently tracking for price drops via Penny. No arguments needed.
track_productAllows the user to track the price of one or more products via the Penny app. Accepts an array of products, each with a productId and action ("add" or "remove"). Can handle mixed add/remove operations in a single call.
productsarrayArray of products to track or untrack. Each item specifies a productId and action.