Price feed
A source of asset-price updates that applications can read, often through an onchain oracle record.
In more detail
A price feed is more than a number on a screen. An application needs its units, update conditions and timestamp. Some feeds combine several sources, but an old or unavailable update can still affect a lending decision. Developers usually check freshness alongside the reported price.
How you might use it
Your app checks both the price and its update timestamp; yesterday's number is not automatically today's usable quote.
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