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

# User Profiles

> Fetch and search public profiles of other users in your project

User Profiles covers fetching and searching for other users' public profiles. This is distinct from [Current User](/sdk/current-user/overview), which covers the authenticated user's own data.

All hooks in this section return `User` objects — the public-facing profile type. Unlike `AuthUser`, `User` omits private fields such as `email`, `secureMetadata`, `isVerified`, `isActive`, and `lastActive`.

## Hooks

<CardGroup cols={2}>
  <Card title="useFetchUser" href="/hooks/users/use-fetch-user">
    Fetch a user's public profile by their Replyke user ID.
  </Card>

  <Card title="useFetchUserByForeignId" href="/hooks/users/use-fetch-user-by-foreign-id">
    Fetch a user's public profile by their foreign ID (from your own system).
  </Card>

  <Card title="useFetchUserByUsername" href="/hooks/users/use-fetch-user-by-username">
    Fetch a user's public profile by their username.
  </Card>

  <Card title="useFetchUserSuggestions" href="/hooks/users/use-fetch-user-suggestions">
    Search for users by a query string. Useful for autocomplete and user lookup.
  </Card>

  <Card title="useCheckUsernameAvailability" href="/hooks/users/use-check-username-availability">
    Check whether a username is available before setting it.
  </Card>

  <Card title="useUserMentions" href="/hooks/users/use-user-mentions">
    Full mention flow: detects `@` triggers, fetches suggestions, inserts the username into content, and tracks mentioned users.
  </Card>
</CardGroup>

## The `include` Parameter

Several hooks accept an optional `include` parameter. Passing `"files"` (or `["files"]`) instructs the server to populate the user's `avatarFile` and `bannerFile` fields with full `File` objects instead of returning only the IDs.

```tsx theme={null}
const user = await fetchUser({ userId, include: "files" });
// user.avatarFile is now populated
```

## User vs AuthUser

| Field                                     | `User` (public) | `AuthUser` (self only) |
| ----------------------------------------- | :-------------: | :--------------------: |
| `id`, `name`, `username`, `avatar`, `bio` |        ✓        |            ✓           |
| `email`                                   |        —        |            ✓           |
| `secureMetadata`                          |        —        |            ✓           |
| `authMethods`                             |        —        |            ✓           |
| `suspensions`                             |        —        |            ✓           |
| `isVerified`, `isActive`, `lastActive`    |        —        |            ✓           |

See the [User data model](/data-models/user) for the complete field reference.