Home page says:

> Copy and paste this into your ~/.wakatime.cfg file

    [settings]
    api_url = https://api.wakana.io/api
    api_key = ## replace this with your api key when you login

From the FAQ:

> This is a self-hosted version of wakatime.com that is open source and free to use. We rely on the same open source plugins and collect the same data that is available from wakatime's open source plugins.

Naturally this being FOSS, I see from the README on github that you have a choice to self-host, so maybe that ought to be front and center on the home page? Actually the README has a ton of content that could be on the site