How can I get API Key to use the openCellId api for user's location?

How can I get API Key to use the openCellId api for user’s location?

in the homepage , there is only open data source but no api key for using openCellId api in my application

please tell me how to get api key for using openCellId api in my code…

Here:

Or, open your dashboard and click on “Access Tokens” in the left menu.