Uploadcare provides Migro, a tool for migrations via the From URL method. It currently supports:
Direct file URLs
Filestack file handles
Migro requires Python 3.5 to run. You will also need a public API key for your Uploadcare project and a list of files to be migrated.
The migration itself is fairly simple: you provide a list of file URLs or Filestack file handlers, and those files get uploaded to your Uploadcare project. That’s it. Migro does not download any files. It makes use of the Uploading API. Specifically, it utilizes the From URL method.