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

# KeyAssignment

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `assigned_by` | *Nullable\[str]* | :heavy\_check\_mark: | User ID of who made the assignment | user\_abc123 |
| `created_at` | *str* | :heavy\_check\_mark: | ISO 8601 timestamp of when the assignment was created | 2025-08-24T10:30:00Z |
| `guardrail_id` | *str* | :heavy\_check\_mark: | ID of the guardrail | 550e8400-e29b-41d4-a716-446655440001 |
| `id` | *str* | :heavy\_check\_mark: | Unique identifier for the assignment | 550e8400-e29b-41d4-a716-446655440000 |
| `key_hash` | *str* | :heavy\_check\_mark: | Hash of the assigned API key | c56454edb818d6b14bc0d61c46025f1450b0f4012d12304ab40aacb519fcbc93 |
| `key_label` | *str* | :heavy\_check\_mark: | Label of the API key | prod-key |
| `key_name` | *str* | :heavy\_check\_mark: | Name of the API key | Production Key |