The Zeo API is a set of web services that allow third parties to develop applications that allow users full access to their individual sleep records. A set of operations is provided using HTTP and can return data in either JSON or XML formats. All API operations must be authorized and authenticated using OAuth. Using the Zeo API, developers will have the ability to access nightly sleep data including ZQ scores, total sleep time, the number of times woken, and the amount of REM, light, and deep sleep. Additionally, developers will be able to display a sleep graph, showing how the user slept in 5-minute increments throughout the night.