# List Project Usage Fields

**GET** `/v1/projects/{project_id}/usage/fields`

Lists the features, models, tags, languages, and processing method used for requests in the specified project

Base URL: `https://agent.deepgram.com`

Tags: `fields`

## Authorization

| Option | Scheme | Type | Sent as | Scopes |
| --- | --- | --- | --- | --- |
| Option 1 | `ApiKeyAuth` | `apiKey` | header `Authorization` | — |

## Path parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `project_id` | `string` | Yes | The unique identifier of the project |

## Query parameters

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `start` | `string` (date) | No | Start date of the requested date range. Format accepted is YYYY-MM-DD |
| `end` | `string` (date) | No | End date of the requested date range. Format accepted is YYYY-MM-DD |

## Responses

| Status | Description | Media type |
| --- | --- | --- |
| `200` | A list of fields for a specific project | `application/json` |
| `400` | Invalid Request | `application/json` |

### Example response: 200 — A list of fields for a specific project

```json
{
  "features": [
    "string"
  ],
  "models": [
    {
      "language": "string",
      "model_id": "string",
      "name": "string",
      "version": "string"
    }
  ],
  "processing_methods": [
    "string"
  ],
  "tags": [
    "string"
  ]
}
```

### Example response: 400 — Invalid Request

```json
{
  "err_code": "string",
  "err_msg": "string",
  "request_id": "string"
}
```

## Related pages

- [Analyze text content](./text_analyze.md)
- [audio](./tags/audio.md)
- [balances](./tags/balances.md)
- [breakdown](./tags/breakdown.md)
- [configurations](./tags/configurations.md)
- [Create a Project Invite](./invites_create.md)
- [Create a Project Key](./keys_create.md)
- [Create a Project Self-Hosted Distribution Credential](./distributioncredentials_create.md)
- [Create an Agent Configuration](./configurations_create.md)
- [Create an Agent Variable](./variables_create.md)

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