I had the same problem and realised the issue was that I was using the subtitle ID and not the file ID.

What you need to use is the file ID in attributes, files, in this case: files": [ { "file_id": 809775 , not the subtitle ID.

Thanks for the info, played around with Postman and managed to find/fix the issue. I was using the Api-Key for both verification methods instead of using the JWT as the token.

I've been struggling to successfully download files with the API, even with both 'Authorization' and 'API-Key' verification methods in the header. I'm working in python and am new to using API's, so my apologies if I'm making a silly error. Here is the code I am using to try to connect and download ...