Newegg Marketplace SDK is provided to help programmers easily integrate their application with the Newegg Marketplace API. Included are definitions for the data objects models to create the requests and resolve the response, it also supports a retry mechanism and asynchronous API calls. Multiple levels of Logs and Multiple Logs targets are supported as well. The SDK can be configured to keep the credentials of the API, to help handle exceptions from the API, and it supports simulated calling for testing.