Anyone can generate an SDK for any API – you do not need a SwaggerHub account or to be an API owner.
Download a client SDK
Open the API page in SwaggerHub.
If the API has several versions, select the version for which you want to generate the code.
From the Export menu, select Client SDK, and then the desired language or framework.
Note: Languages marked with an asterisk * use custom code generation options as configured by the API editors.
Download and unzip the SDK.
Code generation options
API owners can customize the code generation options for their APIs.
Custom client generators
SwaggerHub On-Premise allows companies to create and use custom code generators. To learn more, see Using Custom Codegen Templates.
I have downloaded the client SDK. Now what?
This depends on the language you are using. Usually, an SDK is not designed to work on its own – you will need to create an application that will use this SDK to make API calls. See the README.md file in the downloaded archive to get started.