> For the complete documentation index, see [llms.txt](https://docs.tonic.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tonic.ai/app/admin/tonic-user-access/single-sign-on/user-authentication-and-groups.md).

# Structural user authentication with SSO

Tonic Structural respects the access control policy of your SSO provider. To access Structural, users must be granted access to the Structural application within your SSO provider.

After SSO is enabled, users can use SSO to create an account in Structural.

![Account creation with Google SSO enabled](/files/u0MUrF8cDkoX1giRWMfH)

On future logins, users are prompted to use SSO to authenticate.

![Login with Google SSO enabled](/files/dHjZOLW4dwAT7Y0gCUaw)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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.tonic.ai/app/admin/tonic-user-access/single-sign-on/user-authentication-and-groups.md?ask=<question>
```

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.