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

# Overview

Secqure's plug-n-play Passwordless Authentication is the perfect solution for implementing authentication flow in minutes using SDKs and APIs supporting multiple technologies.

You can select  an authentication method of your choice and Secqure provides you with developer SDKs to reduce development time.

### **Key Features**

* **OAuth 2.0** flow with **PKCE** security extension
* Authentication using Email **Magic link** and **OTP** over SMS/Email
*  Login Form, Email & SMS customization, and **branding**
*  Add Custom CSS for advanced style
* **Domain** restriction and **Session** duration configuration
* Integrate easily with **no-code** platforms