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+To download games, itch-dl uses a mix of webpage scraping and calling official itch APIs - for the latter to work, a valid API key is required to authenticate requests. **Each key is roughly equivalent to full access to a single Itch account - do not share them with other people!**
+
+- You can create or look up existing API keys [on itch.io](https://itch.io/user/settings/api-keys).
+- Only `web` keys can be used by itch-dl - do not use existing `desktop` or `wharf` keys.
+- You can save your key as `api_key` in the [configuration file](https://github.com/DragoonAethis/itch-dl/wiki/Configuration-Files) for easy access.
+- You can also provide it with the `--api-key` argument to `itch-dl`.