Client API

Definition ∞ A Client API, or Application Programming Interface, provides a set of defined methods and protocols enabling client applications to interact with a blockchain network or a digital asset service. This interface allows developers to programmatically send transactions, query blockchain data, and access various functionalities without needing to run a full node. It serves as a standardized communication layer, simplifying the development of decentralized applications and financial tools. The API abstracts complex underlying blockchain operations for easier integration.
Context ∞ The availability and robustness of client APIs are central to the usability and expansion of the cryptocurrency ecosystem. News often highlights new API functionalities or updates that enhance developer capabilities, leading to more sophisticated applications. Discussions surrounding client APIs frequently involve security considerations, rate limits, and the extent of data access they provide, all of which influence the developer experience and the types of services that can be built.