Pricewatcha

Pricewatcha is a price-data plugin for ChatGPT. Its main purpose is product price analytics: search a structured catalog, inspect current and historical prices, and surface lows, highs, averages, and trends so you can decide whether a price looks good. You can also submit a public merchant product URL for tracking, manage a watchlist, and create price alerts. Catalog and history reads work without an account; alert and watchlist tools require a Pricewatcha API key.