## Need a step-by-step example?

> 💡  
> Learn how to use the Assets API to upload large video files and start dubbing them via the Synthesia API with the [**Guide: Dub Your Videos through Synthesia API**](https://docs.synthesia.io/update/reference/upload-large-files-via-temporary-aws-credentials).

Use the Assets API to:

- **Create new assets** and obtain upload credentials for large files.
- **Upload files** directly to Synthesia’s secure S3 storage using temporary AWS credentials.
- **List or retrieve existing assets** to track their processing or reuse them in later workflows.