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

# Configuration

> GraphQL types for encrypted variables and project organization

## variables

Encrypted configuration values (alternative to .env files).

```graphql theme={null}
type variables {
  id: ID!
  name: String!
  value: String!
  encrypted: Boolean!
  description: String
  createdAt: Date!
  updatedAt: Date!
}
```

<Note>
  Values are encrypted with AES using `NEXTAUTH_SECRET`. Use [`ExuluVariables.get()`](/core/exulu-variables/api-reference#get) to retrieve decrypted values.
</Note>

**Example usage:**

```graphql theme={null}
mutation {
  variablesCreateOne(
    input: {
      name: "openai_api_key"
      value: "sk-..."
      encrypted: true
      description: "OpenAI API key for production"
    }
  ) {
    item {
      id
      name
    }
  }
}
```

## projects

Project organization for grouping resources.

```graphql theme={null}
type projects {
  id: ID!
  name: String!
  description: String
  createdAt: Date!
  updatedAt: Date!
}
```

Projects provide a way to organize related resources for better management and organization.

## Security

<Warning>
  Variable values are write-only. Once encrypted, they cannot be retrieved through GraphQL - use the ExuluVariables API instead.
</Warning>

## Related Types

<CardGroup cols={2}>
  <Card title="Workflow Types" icon="workflow" href="/api-reference/core-types/workflow-types">
    Workflow variables
  </Card>

  <Card title="Agent Types" icon="robot" href="/api-reference/core-types/agent-types">
    Agent configuration
  </Card>

  <Card title="User Management" icon="users" href="/api-reference/core-types/user-management">
    Access permissions
  </Card>

  <Card title="Back to Overview" icon="arrow-left" href="/api-reference/core-types/overview">
    View all core types
  </Card>
</CardGroup>