Price feed refers to a service that provides real-time or near-real-time prices for various cryptocurrencies. It aggregates data from multiple exchanges to give an accurate reflection of current market values. This information is crucial for traders, investors, and platforms that facilitate transactions, as price volatility can be extreme. Using a price feed helps users make informed decisions when buying, selling, or trading digital assets. Price feeds can be provided through APIs or other data services, and they may include additional metrics like trading volume and historical prices. Some platforms may also implement price oracles, which are systems designed to ensure that the data is accurate and resistant to manipulation. In summary, a price feed is an essential component that helps ensure transparency and efficiency in the trading of cryptocurrencies.