Seller Office API

I’m hoping someone can help me. I’m trying to setup the seller office API, but I’m not used to using APIs so I am getting stuck on creating my JWT. I tried following the guide on the website (, but am not having any luck.

At the moment I am at the part where I go to to put in the information and generate a JWT, but I get an invalid signature issue. RS256 requires a public and a private key, but I don’t see where the public key is? I got a private one when creating the service account ID, where is the public or what do I put here?

Thanks in advance if anyone can help.

You can check this blog How to Create an Access Token for the Galaxy Store Developer API Using Python .
Hope it will solve your issue.