> ## Documentation Index
> Fetch the complete documentation index at: https://lago-ftr-wallet-improvements.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# List all billable metrics

> This endpoint retrieves all existing billable metrics that represent pricing components of your application.

<RequestExample>
  ```bash cURL
  LAGO_URL="https://api.getlago.com"
  API_KEY="__YOUR_API_KEY__"

  curl --location --request GET "$LAGO_URL/api/v1/billable_metrics?per_page=2&page=1" \
  --header "Authorization: Bearer $API_KEY"
  ```

  ```python Python
  from lago_python_client.client import Client
  from lago_python_client.exceptions import LagoApiError

  client = Client(api_key='__YOUR_API_KEY__')

  try:
      client.billable_metrics.find_all({'per_page': 2, 'page': 1})
  except LagoApiError as e:
      repair_broken_state(e)  # do something on error or raise your own exception
  ```

  ```ruby Ruby
  require 'lago-ruby-client'

  client = Lago::Api::Client.new({api_key: '__YOUR_API_KEY__'})

  client.billable_metrics.get_all({ per_page: 2, page: 3 })
  ```

  ```js Javascript
  await client.billableMetrics.findAllBillableMetrics({ per_page: 2, page: 3 });
  ```

  ```go Go
  import "fmt"
  import "github.com/getlago/lago-go-client"

  func main() {
      lagoClient := lago.New().
      SetApiKey("__YOUR_API_KEY__")

      bmListInput := &lago.BillableMetricListInput{
      PerPage: 10,
      Page: 1,
      }

      billableMetricResult, err := lagoClient.BillableMetric().GetList(bmListInput)
      if err != nil {
      // Error is *lago.Error
      panic(err)
      }

      // billableMetric is *lago.BillableMetricResult
      fmt.Println(billableMetricResult)
  }
  ```

  ```csharp C#
  using System.Collections.Generic;
  using System.Diagnostics;
  using Org.OpenAPITools.Api;
  using Org.OpenAPITools.Client;
  using Org.OpenAPITools.Model;

  namespace Example
  {
  public class FindAllBillableMetricsExample
  {
      public static void Main()
      {
          Configuration.Default.BasePath = "https://api.getlago.com/api/v1";
          // Configure HTTP bearer authorization: bearerAuth
          Configuration.Default.AccessToken = "YOUR_ACCESS_TOKEN";

          var apiInstance = new BillableMetricsApi(Configuration.Default);
          var page = 2;  // int? | Number of page (optional)
          var perPage = 20;  // int? | Number of records per page (optional)

          try
          {
              // Find Billable metrics
              BillableMetrics result = apiInstance.FindAllBillableMetrics(page, perPage);
              Debug.WriteLine(result);
          }
          catch (ApiException e)
          {
              Debug.Print("Exception when calling BillableMetricsApi.FindAllBillableMetrics: " + e.Message );
              Debug.Print("Status Code: "+ e.ErrorCode);
              Debug.Print(e.StackTrace);
          }
      }
    }
  }
  ```

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


  // Configure Bearer authorization: bearerAuth
  $config = OpenAPI\Client\Configuration::getDefaultConfiguration()->setAccessToken('YOUR_ACCESS_TOKEN');


  $apiInstance = new OpenAPI\Client\Api\BillableMetricsApi(
  // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
  // This is optional, `GuzzleHttp\Client` will be used as default.
  new GuzzleHttp\Client(),
  $config
  );
  $page = 2; // int | Number of page
  $per_page = 20; // int | Number of records per page

  try {
  $result = $apiInstance->findAllBillableMetrics($page, $per_page);
  print_r($result);
  } catch (Exception $e) {
  echo 'Exception when calling BillableMetricsApi->findAllBillableMetrics: ', $e->getMessage(), PHP_EOL;
  }
  ```
</RequestExample>