# List Project Billing Fields

GET https://api.deepgram.com/v1/projects//billing/fields

Lists the accessors, deployment types, tags, and line items used for billing data in the specified time period. Use this endpoint if you want to filter your results from the Billing Breakdown endpoint and want to know what filters are available.

Reference: https://developers.deepgram.com/reference/manage/billing/fields/get

## Authentication

- `Authorization` header (required) (prefixed with `Token `) — Use `Authorization: Token <API_KEY>` Example: `Authorization: Token 12345abcdef`

## Request

### Path parameters

- `project_id` (string, required) — The unique identifier of the project

### Query parameters

- `start` (string, optional) — Start date of the requested date range. Format accepted is YYYY-MM-DD
- `end` (string, optional) — End date of the requested date range. Format accepted is YYYY-MM-DD

## Response

### 200

A list of billing fields for a specific project

- `accessors` (list of string, optional) — List of accessor UUIDs for the time period
- `deployments` (list of enum, optional) — List of deployment types for the time period
  - Allowed values: `hosted`, `beta`, `self-hosted`, `dedicated`
- `tags` (list of string, optional) — List of tags for the time period
- `line_items` (map from string to string, optional) — Map of line item names to human-readable descriptions for the time period

## Errors

### 400 Bad Request Error

Invalid Request

- `ErrorResponse`

## Types

### ErrorResponseLegacyError

- `err_code` (string, optional) — The error code
- `err_msg` (string, optional) — The error message
- `request_id` (string, optional) — The request ID

### ErrorResponseModernError

- `category` (string, optional) — The category of the error
- `message` (string, optional) — A message about the error
- `details` (string, optional) — A description of the error
- `request_id` (string, optional) — The unique identifier of the request

## Examples

**Response**

```json
{
  "accessors": [
    "12345678-1234-1234-1234-123456789012",
    "87654321-4321-4321-4321-210987654321"
  ],
  "deployments": [
    "hosted",
    "self-hosted"
  ],
  "tags": [
    "dev",
    "production"
  ],
  "line_items": {
    "streaming::nova-3": "Nova - 3 (Stream)",
    "sync::aura-2": "Aura -2 (Sync)"
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields"

headers = {"Authorization": "Token <apiKey>"}

response = requests.get(url, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields';
const options = {method: 'GET', headers: {Authorization: 'Token <apiKey>'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Token <apiKey>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Token <apiKey>'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.get("https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields")
  .header("Authorization", "Token <apiKey>")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields', [
  'headers' => [
    'Authorization' => 'Token <apiKey>',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Token <apiKey>");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Authorization": "Token <apiKey>"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api.deepgram.com/v1/projects/123456-7890-1234-5678-901234/billing/fields")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```

## Related pages

- [Get Project Balances](./self-hosted-deployments-2-reference-manage-billing-list.md)
- [Get a Project Balance](./self-hosted-deployments-2-reference-manage-billing-get.md)
- [Get Project Billing Breakdown](./self-hosted-deployments-2-reference-manage-billing-breakdown-get.md)
- [List Project Purchases](./self-hosted-deployments-2-reference-manage-billing-purchases-get.md)

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