Thank you for your email.
Unfortunately, we only host finalised published data on each of the catmaid instances we host on behalf of the groups who created the data. CATMAID is available to run on your own infrastructure to set up your project for free:
https://github.com/catmaid/CATMAID If you wanted to add tracings to existing stacks/projects then you'd need to contact the individual project groups to get involved via them.
We hope to host your data when you are ready to release it to the public.