Smartsheet is an online project management company that provides an SDK for Salesforce.com, a cloud based CRM enterprise. The site displays links to access source code and documents on Github and to download an unmanaged package. When users visit Github, they will notice that the Apex Toolkit offers a class library that interacts with the Smartsheet API. This API supports a REST interface to Smartsheet data. In addition, when users install the package, they will note that signup is required to connect with Salesforce.com.