> ## Documentation Index
> Fetch the complete documentation index at: https://datum-4926dda5-docs-api-reference-demo.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IAM

> Identity and access management on Datum Cloud — roles, policy bindings, groups, and service accounts that control who can do what.

Datum Cloud provides identity and access management through the `iam.miloapis.com` API. You define **roles** that bundle permissions, grant them to identities with **policy bindings**, organize people into **groups**, run automation under **service accounts**, and bring new people onboard with **user invitations**. Together these resources decide which identities can perform which actions on which resources.

<Warning>
  The IAM API is **alpha** (`v1alpha1`). Fields and behavior may change in backward-incompatible ways between releases.
</Warning>

## Resources

<CardGroup cols={2}>
  <Card title="Role" icon="shield-halved" href="/api/iam/role">
    A named collection of permissions that can be granted to identities.
  </Card>

  <Card title="PolicyBinding" icon="link" href="/api/iam/policybinding">
    Grants a role to one or more identities on a target resource.
  </Card>

  <Card title="Group" icon="users" href="/api/iam/group">
    A named set of members you can grant access to as a unit.
  </Card>

  <Card title="GroupMembership" icon="user-plus" href="/api/iam/groupmembership">
    Places a user or service account into a group.
  </Card>

  <Card title="ServiceAccount" icon="robot" href="/api/iam/serviceaccount">
    A non-human identity for automation and machine-to-machine access.
  </Card>

  <Card title="UserInvitation" icon="envelope" href="/api/iam/userinvitation">
    Invites a person to join and take on access within Datum Cloud.
  </Card>
</CardGroup>

## Learn more

* [API resources overview](/api/overview) — the resource reference landing page across all Datum Cloud services.
* [Changing resources](/datumctl/resources/changing) — how to apply, edit, and safely preview changes to these resources.