Hi @thomas66
Welcome to the Auth0 Community!
I am sorry about the late reply to your inquiry!
The beta for the jwt.io website should now be available to the whole community.
If you are still experiencing issues with the public key for the JWTs you are providing, I would highly recommend to open a discussion on the Github page available here.
If you have any other questions, feel free to leave a reply!
Kind Regards,
Nik