Today, we are pleased to introduce a free eBook, Using Vonage Communications APIs With MongoDB Atlas, which provides a walkthrough on building an application that utilizes MongoDB Atlas and a suite of Vonage Communications APIs, including integrating Vonage Verify API for user login, sending order confirmations via Vonage Messages API, and using Vonage Meetings API for issue resolution. The eBook will also guide developers in setting up a MongoDB Atlas cluster and associated App Service, having a front-end app talk back to MongoDB Atlas via Realm, and implementing User Authentication with MongoDB Users. The source code for the application is available on GitHub, and developers are encouraged to download the eBook and share their feedback on the Vonage Developer Slack or Twitter.