Revit.Async is a software library for Autodesk Revit that enables developers to execute API calls using async/await patterns. This library functions as an external-event wrapper designed to facilitate multi-threaded operations within the Revit API environment. It provides a structured method for handling asynchronous tasks, allowing developers to offload long-running processes from the main UI thread. By implementing a safe bridge between background threads and the Revit application, it helps maintain software stability during complex data processing or external service integration. The package includes the necessary code structure to manage these threads effectively, ensuring that API calls are executed in a sequence that respects the platform's internal threading requirements.

The download is a 51 KB file containing .ZIP files.

Developers integrate this library into their C# projects by referencing the compiled assembly within their Visual Studio environment. Once referenced, the library allows for the implementation of asynchronous task patterns, which can then be invoked from custom add-in commands. It is essential to ensure that all UI-related operations are correctly marshalled back to the main thread while heavy computations are performed in the background to prevent interface freezing during execution.

This tool is essential for software developers and BIM engineers who are building custom automation tools, data integration plugins, or complex add-ins for Revit. It is particularly useful in large-scale architectural and engineering practices where performance optimisation is critical for managing extensive BIM datasets. By enabling non-blocking API calls, it allows for the creation of more responsive plugins that can handle heavy background tasks, such as real-time cloud data synchronisation or automated model analysis, without interrupting the user's active design workflow.