> For the complete documentation index, see [llms.txt](https://docs.abbey.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.abbey.io/admin/sign-in-and-mfa/sign-in-methods.md).

# Sign-in Methods

Users can sign-in using one of three methods: 

* **Credential:** An email and a password set by the user that adheres to [NIST guidelines](https://clerk.com/docs/security/password-protection), including enforcing character limits and ensuring that the password isn't compromised in prior breaches
* **Social Providers:** Abbey currently supports Social Login via Google, Github, or Microsoft. 
* **Magic Link:** A user will get a link to sign-in via their email with a verification code, creating a fully passwordless experience. 


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.abbey.io/admin/sign-in-and-mfa/sign-in-methods.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.