When you click the "Configure" button of Neptune.ml integration with Jupyter notebook, the dialog asks you to provide an API token that identifies your Neptune user. If you often switch between laptops, or your Jupyter often changes the root domain, it may become tedious to copy-paste the token every time. This extension allows you to memorize the API token, which becomes shared with all your logged-in browser instances. The token is automatically inserted in the corresponding input box of the configuration dialog.