> For the complete documentation index, see [llms.txt](https://docs.marblex.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.marblex.io/services/wallet/passport.md).

# Passport

Users can also utilize the **Passport** when using MARBLEX services.

This service will gradually expand to more services in our ecosystem.

{% hint style="info" %}
Sign up for the Passport at [**https://play.immutable.com/games/**](https://play.immutable.com/games/)
{% endhint %}