Dead simple, you upload a file and you get permanent public direct download link.
/upload?key={api_key} - Upload a file, using multipart/form-data.
/download/{file_id} - Download a file.
curl -X POST https://telefiles.frii.site/upload?key=api-12345-key -F "file=@myfile.txt" | jq
The server responds with JSON containing the download URL:
{"url": "https://telefiles.frii.site/download/file-12345-id" }
curl -O https://telefiles.frii.site/download/file-12345-id
jq tool is optional, but useful for formatting JSON responses.