# Auth Service The Auth Service provides support for multiple authentication methods and protocols to your cluster. The protocols Extra Horizon provides for authentication are **OAuth 1** and **OAuth 2**. Next to those, **Multi-Factor Authentication** (MFA) and **OpenID Connect** add an extra layer of security and flexibility to your users authentication process. --- # Agent Instructions: 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: ``` GET https://docs.extrahorizon.com/extrahorizon/services/access-management/auth-service.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. 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.