Traditionally, firms have developed and deployed Revit Add-ins using C# to implement automations and custom capabilities in Revit. Autodesk now offers the Automation API, part of the Autodesk Platform Service (APS), which provides access to the automation capabilities of Autodesk’s core products, including the Revit API. This session will assist developers in transitioning from the Revit API to the Automation API. The Automation API introduces a new workflow that allows developers to access the full Revit DB API without needing a Revit desktop installation. This enables seamless creation, extraction, and modification of Revit data. This workflow facilitates the creation of custom Revit families, data extraction, and more, without the need to open Revit models. We outline from start to finish how to convert a Revit Add-in to Design Automation. This includes using Postman, managing References, Access Tokens, AppBundles, publishing, and running WorkItems.