import_file
Copy a file from a public https URL (up to 5 GB, with a Content-Length) into mixetape storage — e.g. a video from a render service whose link expires. mixetape fetches it; nothing is sent from your machine. Returns its url (r2://…). Needs the storage permission. Also available as the MCP tool import_file.
POST
https://mixetape.com/api/v1/tools/import_file