The yt Hub

What is the yt Hub?

The yt data Hub is a mechanism by which images, data objects and projects can be shared with other people. For instance, one can upload a dataset and allow other people to remotely analyze it with a jupyter notebook or upload notebooks and view them from any web browser.


All items posted on the hub are public!

Over time, more widgets will be added, and more datatypes will be able to be uploaded. If you are interested in adding more ways of sharing data, please email the developers’ list. We would like to add support for 3D widgets such as isocontours as well as interactive binning and rebinning of data from yt data objects, to be displayed as phase plots and profiles.


Working with the Hub requires additional dependencies to be installed. You can obtain them by running: pip install yt[hub].

Obtaining an API key

In order to interact with the yt Hub, you need to obtain API key, which is available only for authenticated users. You can log into the Hub using your Google, GitHub or Bitbucket account. After you log in, an API key can be generated under the My account page, which can be accessed through the dropdown menu in the upper right corner.


Select the API keys tab and press Create new key button:


By convention, the Name field of API keys can be used to specify what application is making use of the key in a human-readable way e.g. yt command, although you may name your key however you want.


After the API Key is created you can obtain it by clicking show link:


For more information about API keys please see this document.

After you have gotten your API key, update your config file:

$ yt config set yt hub_api_key 3fd1de56c2114c13a2de4dd51g10974b

Replace 3fd1de56c2114c13a2de4dd51g10974b with your API key.

Registering a User

If you do not wish to use OAuth authentication, you can create a Hub account using yt command. To register a user:

$ yt hub register

This will walk you through the process of registering. You will need to supply a name, a username, a password and an email address. Apart from creating a new user account, it will also generate an API key and append it to the yt’s config file. At this point, you’re ready to go!

What Can Be Uploaded

Currently, the yt hub can accept these types of data:

  • Raw data files, scripts.

  • IPython notebooks: these are stored on the hub and are made available for download and via the IPython nbviewer service.

How to Upload Data

Uploading data can be performed using the girder-cli command tool or directly via the web interface. Please refer to girder-cli documentation page for additional information.

Uploading Notebooks

Notebooks can be uploaded from the bash command line:

yt upload_notebook notebook_file.ipynb

After the notebook is finished uploading, yt will print a link to the raw notebook as well as an nbviewer link to the same notebook. Your notebooks will be stored under your hub Public directory.