SDK

An SDK (Software Development Kit) is a collection of libraries, tools, and documentation that simplifies integration with an API using a specific programming language. Rather than writing raw HTTP requests, developers use SDK methods that handle authentication, formatting, and response parsing automatically.

For example, a JavaScript SDK for a real estate API might expose a function like searchProperties({ city: 'Dubai', minBedrooms: 2 }) that internally constructs the correct HTTP GET request, adds your API key, and returns a parsed JavaScript object.

SDKs reduce integration time and lower implementation errors. When an API changes, updating the SDK version is simpler than manually updating every HTTP call in your codebase.