Yes, Coinbase has a free API. The Coinbase API is a set of programming instructions that allow software to interact with the Coinbase website and its various functions.
NOTE: WARNING: Using a free API from Coinbase may not be the best option as it can be unreliable and may not include all the features available with their paid plans. Additionally, Coinbase has the right to change their terms at any time, which could cause your API to become unusable without notice. Therefore, it is important to consider other options that may offer better stability and features when selecting an API provider.
The API is used by developers to create applications that can access the Coinbase website and its data.