---
title: Get a Cloud Cost Management tag key
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > API Reference > Cloud Cost Management
---

# Get a Cloud Cost Management tag key{% #get-a-cloud-cost-management-tag-key %}
Copy pageCopied
{% tab title="v2" %}

| Datadog site      | API endpoint                                                     |
| ----------------- | ---------------------------------------------------------------- |
| ap1.datadoghq.com | GET https://api.ap1.datadoghq.com/api/v2/cost/tag_keys/{tag_key} |
| ap2.datadoghq.com | GET https://api.ap2.datadoghq.com/api/v2/cost/tag_keys/{tag_key} |
| app.datadoghq.eu  | GET https://api.datadoghq.eu/api/v2/cost/tag_keys/{tag_key}      |
| app.ddog-gov.com  | GET https://api.ddog-gov.com/api/v2/cost/tag_keys/{tag_key}      |
| us2.ddog-gov.com  | GET https://api.us2.ddog-gov.com/api/v2/cost/tag_keys/{tag_key}  |
| app.datadoghq.com | GET https://api.datadoghq.com/api/v2/cost/tag_keys/{tag_key}     |
| us3.datadoghq.com | GET https://api.us3.datadoghq.com/api/v2/cost/tag_keys/{tag_key} |
| us5.datadoghq.com | GET https://api.us5.datadoghq.com/api/v2/cost/tag_keys/{tag_key} |

### Overview

Get details for a specific Cloud Cost Management tag key, including example tag values and description. This endpoint requires the `cloud_cost_management_read` permission.

OAuth apps require the `cloud_cost_management_read` authorization [scope](https://docs.datadoghq.com/api/latest/scopes.md#cloud-cost-management) to access this endpoint.



### Arguments

#### Path Parameters

| Name                      | Type   | Description                                                                                                   |
| ------------------------- | ------ | ------------------------------------------------------------------------------------------------------------- |
| tag_key [*required*] | string | The Cloud Cost Management tag key. Tag keys can contain forward slashes (for example, `kubernetes/instance`). |

#### Query Strings

| Name           | Type    | Description                                                                                                                                                                    |
| -------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| filter[metric] | string  | The Cloud Cost Management metric to scope the tag key details to. When omitted, returns details across all metrics.                                                            |
| page[size]     | integer | Controls the size of the internal tag value search scope. This does **not** restrict the number of example tag values returned in the response. Defaults to 50, maximum 10000. |

### Response

{% tab title="200" %}
OK
{% tab title="Model" %}
A single Cloud Cost Management tag key.

| Parent field | Field                         | Type     | Description                                                                                               |
| ------------ | ----------------------------- | -------- | --------------------------------------------------------------------------------------------------------- |
|              | data [*required*]        | object   | A Cloud Cost Management tag key.                                                                          |
| data         | attributes [*required*]  | object   | Attributes of a Cloud Cost Management tag key.                                                            |
| attributes   | details                       | object   | Additional details for a Cloud Cost Management tag key, including its description and example tag values. |
| details      | description [*required*] | string   | Description of the tag key.                                                                               |
| details      | tag_values [*required*]  | [string] | Example tag values observed for this tag key.                                                             |
| attributes   | sources [*required*]     | [string] | List of sources that define this tag key.                                                                 |
| attributes   | value [*required*]       | string   | The tag key name.                                                                                         |
| data         | id [*required*]          | string   | The tag key identifier.                                                                                   |
| data         | type [*required*]        | enum     | Type of the Cloud Cost Management tag key resource. Allowed enum values: `cost_tag_key`                   |

{% /tab %}

{% tab title="Example" %}

```json
{
  "data": {
    "attributes": {
      "details": {
        "description": "The cloud provider name reported for the cost line item.",
        "tag_values": [
          "aws",
          "gcp",
          "azure"
        ]
      },
      "sources": [
        "focus"
      ],
      "value": "providername"
    },
    "id": "providername",
    "type": "cost_tag_key"
  }
}
```

{% /tab %}

{% /tab %}

{% tab title="400" %}
Bad Request
{% tab title="Model" %}
API error response.

| Field                    | Type     | Description       |
| ------------------------ | -------- | ----------------- |
| errors [*required*] | [string] | A list of errors. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    "Bad Request"
  ]
}
```

{% /tab %}

{% /tab %}

{% tab title="403" %}
Forbidden
{% tab title="Model" %}
API error response.

| Field                    | Type     | Description       |
| ------------------------ | -------- | ----------------- |
| errors [*required*] | [string] | A list of errors. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    "Bad Request"
  ]
}
```

{% /tab %}

{% /tab %}

{% tab title="404" %}
Not Found
{% tab title="Model" %}
API error response.

| Field                    | Type     | Description       |
| ------------------------ | -------- | ----------------- |
| errors [*required*] | [string] | A list of errors. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    "Bad Request"
  ]
}
```

{% /tab %}

{% /tab %}

{% tab title="429" %}
Too many requests
{% tab title="Model" %}
API error response.

| Field                    | Type     | Description       |
| ------------------------ | -------- | ----------------- |
| errors [*required*] | [string] | A list of errors. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "errors": [
    "Bad Request"
  ]
}
```

{% /tab %}

{% /tab %}

### Code Example

##### 
                  \# Path parameters export tag_key="CHANGE_ME" \# Curl command curl -X GET "https://api.datadoghq.com/api/v2/cost/tag_keys/${tag_key}" \
-H "Accept: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-H "DD-APPLICATION-KEY: ${DD_APP_KEY}" 
                
##### 

```python
"""
Get a Cloud Cost Management tag key returns "OK" response
"""

from datadog_api_client import ApiClient, Configuration
from datadog_api_client.v2.api.cloud_cost_management_api import CloudCostManagementApi

configuration = Configuration()
with ApiClient(configuration) as api_client:
    api_instance = CloudCostManagementApi(api_client)
    response = api_instance.get_cost_tag_key(
        tag_key="tag_key",
    )

    print(response)
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=python) and then save the example to `example.py` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" python3 "example.py"
##### 

```ruby
# Get a Cloud Cost Management tag key returns "OK" response

require "datadog_api_client"
api_instance = DatadogAPIClient::V2::CloudCostManagementAPI.new
p api_instance.get_cost_tag_key("tag_key")
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=ruby) and then save the example to `example.rb` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" rb "example.rb"
##### 

```go
// Get a Cloud Cost Management tag key returns "OK" response

package main

import (
	"context"
	"encoding/json"
	"fmt"
	"os"

	"github.com/DataDog/datadog-api-client-go/v2/api/datadog"
	"github.com/DataDog/datadog-api-client-go/v2/api/datadogV2"
)

func main() {
	ctx := datadog.NewDefaultContext(context.Background())
	configuration := datadog.NewConfiguration()
	apiClient := datadog.NewAPIClient(configuration)
	api := datadogV2.NewCloudCostManagementApi(apiClient)
	resp, r, err := api.GetCostTagKey(ctx, "tag_key", *datadogV2.NewGetCostTagKeyOptionalParameters())

	if err != nil {
		fmt.Fprintf(os.Stderr, "Error when calling `CloudCostManagementApi.GetCostTagKey`: %v\n", err)
		fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r)
	}

	responseContent, _ := json.MarshalIndent(resp, "", "  ")
	fmt.Fprintf(os.Stdout, "Response from `CloudCostManagementApi.GetCostTagKey`:\n%s\n", responseContent)
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=go) and then save the example to `main.go` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" go run "main.go"
##### 

```java
// Get a Cloud Cost Management tag key returns "OK" response

import com.datadog.api.client.ApiClient;
import com.datadog.api.client.ApiException;
import com.datadog.api.client.v2.api.CloudCostManagementApi;
import com.datadog.api.client.v2.model.CostTagKeyResponse;

public class Example {
  public static void main(String[] args) {
    ApiClient defaultClient = ApiClient.getDefaultApiClient();
    CloudCostManagementApi apiInstance = new CloudCostManagementApi(defaultClient);

    try {
      CostTagKeyResponse result = apiInstance.getCostTagKey("tag_key");
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println("Exception when calling CloudCostManagementApi#getCostTagKey");
      System.err.println("Status code: " + e.getCode());
      System.err.println("Reason: " + e.getResponseBody());
      System.err.println("Response headers: " + e.getResponseHeaders());
      e.printStackTrace();
    }
  }
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=java) and then save the example to `Example.java` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" java "Example.java"
##### 

```rust
// Get a Cloud Cost Management tag key returns "OK" response
use datadog_api_client::datadog;
use datadog_api_client::datadogV2::api_cloud_cost_management::CloudCostManagementAPI;
use datadog_api_client::datadogV2::api_cloud_cost_management::GetCostTagKeyOptionalParams;

#[tokio::main]
async fn main() {
    let configuration = datadog::Configuration::new();
    let api = CloudCostManagementAPI::with_config(configuration);
    let resp = api
        .get_cost_tag_key(
            "tag_key".to_string(),
            GetCostTagKeyOptionalParams::default(),
        )
        .await;
    if let Ok(value) = resp {
        println!("{:#?}", value);
    } else {
        println!("{:#?}", resp.unwrap_err());
    }
}
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=rust) and then save the example to `src/main.rs` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" cargo run
##### 

```typescript
/**
 * Get a Cloud Cost Management tag key returns "OK" response
 */

import { client, v2 } from "@datadog/datadog-api-client";

const configuration = client.createConfiguration();
const apiInstance = new v2.CloudCostManagementApi(configuration);

const params: v2.CloudCostManagementApiGetCostTagKeyRequest = {
  tagKey: "tag_key",
};

apiInstance
  .getCostTagKey(params)
  .then((data: v2.CostTagKeyResponse) => {
    console.log(
      "API called successfully. Returned data: " + JSON.stringify(data)
    );
  })
  .catch((error: any) => console.error(error));
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=typescript) and then save the example to `example.ts` and run following commands:
    DD_SITE="datadoghq.com" DD_API_KEY="<DD_API_KEY>" DD_APP_KEY="<DD_APP_KEY>" tsc "example.ts"
{% /tab %}
