Every application built on top of Quai Network requires a connection to the network in order to interact with smart contracts, send transactions, or sign messages on behalf of a user. Using the direct client JSON-RPC API is possible, but the methods can be quite verbose for use in application interfaces.

JavaScript APIs and SDKs offer a simplified interface for web applications to interact with Quai Network via one-line methods, conversion utils, and smart contract wrappers.
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While some developers may opt to interact directly with the JSON-RPC API detailed below, there are also a number of Javascript based convenience libraries designed to make data interaction much easier. Convenience libraries abstract much of the complexity of direct API calls out into simple one-line methods. These methods are also easily portable into decentralized applications and help make backend logic more concise and readable. The primary convenience library used to interact with Quai Network is quais.js.
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