> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stackone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Identity and Access

> Manage how your team signs in to StackOne and what each person can access.

Enable your users to start using StackOne:

<CardGroup cols={1}>
  <Card horizontal title="Authentication" icon="key" href="/secure/identity-and-access/authentication/overview">
    Set up how users sign in.

    Use Single Sign-On (SSO) so users sign in through your identity provider (IdP), or keep passwords with MFA.
  </Card>

  <Card horizontal title="Manage Team" icon="user-gear" href="/secure/identity-and-access/manage-team/overview">
    Choose how users join and leave.

    Invite users, add them at their first SSO sign-in with Just-in-Time Provisioning, or sync them from your IdP's directory with SCIM Provisioning.
  </Card>

  <Card horizontal title="Roles and Groups" icon="shield-halved" href="/secure/identity-and-access/roles-and-groups/overview">
    Give users the access they need.

    Assign each user a role, from the whole organization down to a single linked account. Use groups to give many users the same project or account access.
  </Card>
</CardGroup>


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