> For the complete documentation index, see [llms.txt](https://docs.1kosmos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.1kosmos.com/authentication/passwordless-for-web-apps/use-cases.md).

# Use cases

***

Use cases show how 1Kosmos passwordless authentication is applied to real-world deployment scenarios. Each one walks through the setup and user experience for a specific environment or workflow, so you can adapt the closest match to your own rollout.

Explore the available use cases:

* **Entra Passkey for Frontline Workers** — Passwordless access for shared-device, frontline environments using Entra-backed passkeys.
* **In-Flight Enrollment for EAM (Behavior Auth + PIN)** — Let pre-authenticated EAM users enroll Typing Pattern and a PIN during login, with no personal device required.


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