--- title: List Cloud Cost Management tag key metadata description: Datadog, the leading service for cloud-scale monitoring. breadcrumbs: Docs > API Reference > Cloud Cost Management --- > For the complete documentation index, see [llms.txt](https://docs.datadoghq.com/llms.txt). # List Cloud Cost Management tag key metadata{% #list-cloud-cost-management-tag-key-metadata %} Copy pageCopied {% tab title="v2" %} **Note**: This endpoint is in preview and is subject to change. If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/). | Datadog site | API endpoint | | ----------------- | ---------------------------------------------------------- | | ap1.datadoghq.com | GET https://api.ap1.datadoghq.com/api/v2/cost/tag_metadata | | ap2.datadoghq.com | GET https://api.ap2.datadoghq.com/api/v2/cost/tag_metadata | | app.datadoghq.eu | GET https://api.datadoghq.eu/api/v2/cost/tag_metadata | | app.ddog-gov.com | GET https://api.ddog-gov.com/api/v2/cost/tag_metadata | | us2.ddog-gov.com | GET https://api.us2.ddog-gov.com/api/v2/cost/tag_metadata | | uk1.datadoghq.com | GET https://api.uk1.datadoghq.com/api/v2/cost/tag_metadata | | app.datadoghq.com | GET https://api.datadoghq.com/api/v2/cost/tag_metadata | | us3.datadoghq.com | GET https://api.us3.datadoghq.com/api/v2/cost/tag_metadata | | us5.datadoghq.com | GET https://api.us5.datadoghq.com/api/v2/cost/tag_metadata | ### Overview List Cloud Cost Management tag key metadata, including row counts, cost covered, cardinality, and a sample of top tag values per cloud account. Use `filter[daily]=true` to return daily rows instead of the default monthly roll-up. 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 #### Query Strings | Name | Type | Description | | ------------------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | filter[month] [*required*] | string | The month to scope the query to, in `YYYY-MM` format. | | filter[provider] | string | Filter results to a specific provider. Common cloud values are `aws`, `azure`, `gcp`, `Oracle` (OCI), and `custom`. SaaS billing integrations (for example, `Snowflake`, `MongoDB`, `Databricks`) are also accepted using their display-name string. Values are case-sensitive. | | filter[metric] | string | Filter results to a specific Cloud Cost Management metric (for example, `aws.cost.net.amortized`). When omitted, every available metric for the requested period is returned. | | filter[tag_key] | string | Restrict results to a single tag key. | | filter[daily] | enum | When `true`, return one row per day with the day in the `date` attribute. Defaults to the monthly roll-up when omitted. Allowed enum values: `true, false` | ### Response {% tab title="200" %} OK {% tab title="Model" %} List of Cloud Cost Management tag key metadata entries for the requested period. | Parent field | Field | Type | Description | | -------------------- | ---------------------------------------- | -------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- | | | data [*required*] | [object] | List of tag key metadata entries. | | data | attributes [*required*] | object | Attributes of a Cloud Cost Management tag key metadata entry. | | attributes | cardinality_by_account [*required*] | object | Number of unique tag values observed for this tag key, keyed by cloud account ID. | | additionalProperties | | int64 | Number of unique tag values observed in the account. | | attributes | cost_covered [*required*] | double | Total cost (in the report currency) of cost line items that carry this tag key for the requested period. | | attributes | date | string | The day this row corresponds to, in `YYYY-MM-DD` format. Present only when `filter[daily]=true`; omitted for the monthly roll-up returned by default. | | attributes | metric [*required*] | string | The Cloud Cost Management metric this row aggregates, for example `aws.cost.net.amortized`. | | attributes | row_count [*required*] | int64 | Number of cost rows that carry this tag key over the requested period. | | attributes | tag_sources [*required*] | [string] | Origins where this tag key was observed (for example, `aws-user-defined`). | | attributes | top_values_by_account [*required*] | object | A sample of the most frequent tag values observed for this tag key, keyed by cloud account ID. | | additionalProperties | | [string] | A sample of the most frequent tag values observed in the account. | | data | id [*required*] | string | A composite identifier of the form `tag_key:metric` for monthly roll-ups, or `tag_key:metric:YYYY-MM-DD` when `filter[daily]=true`. | | data | type [*required*] | enum | Type of the Cloud Cost Management tag key metadata resource. Allowed enum values: `cost_tag_key_metadata` | {% /tab %} {% tab title="Example" %} ```json { "data": [ { "attributes": { "cardinality_by_account": { "123456789012": 42 }, "cost_covered": 1234.56, "metric": "aws.cost.net.amortized", "row_count": 100, "tag_sources": [ "aws-user-defined" ], "top_values_by_account": { "123456789012": [ "prod", "staging" ] } }, "id": "env:aws.cost.net.amortized", "type": "cost_tag_key_metadata" } ] } ``` {% /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="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 ##### \# Required query arguments export filter[month]="2026-02" \# Curl command curl -X GET "https://api.datadoghq.com/api/v2/cost/tag_metadata?filter[month]=${filter[month]}" \ -H "Accept: application/json" \ -H "DD-API-KEY: ${DD_API_KEY}" \ -H "DD-APPLICATION-KEY: ${DD_APP_KEY}" ##### ```python """ List Cloud Cost Management tag key metadata returns "OK" response """ from datadog_api_client import ApiClient, Configuration from datadog_api_client.v2.api.cloud_cost_management_api import CloudCostManagementApi configuration = Configuration() configuration.unstable_operations["list_cost_tag_metadata"] = True with ApiClient(configuration) as api_client: api_instance = CloudCostManagementApi(api_client) response = api_instance.list_cost_tag_metadata( filter_month="filter[month]", ) 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_APP_KEY="" python3 "example.py" ##### ```ruby # List Cloud Cost Management tag key metadata returns "OK" response require "datadog_api_client" DatadogAPIClient.configure do |config| config.unstable_operations["v2.list_cost_tag_metadata".to_sym] = true end api_instance = DatadogAPIClient::V2::CloudCostManagementAPI.new p api_instance.list_cost_tag_metadata("filter[month]") ``` #### 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_APP_KEY="" rb "example.rb" ##### ```go // List Cloud Cost Management tag key metadata 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() configuration.SetUnstableOperationEnabled("v2.ListCostTagMetadata", true) apiClient := datadog.NewAPIClient(configuration) api := datadogV2.NewCloudCostManagementApi(apiClient) resp, r, err := api.ListCostTagMetadata(ctx, "filter[month]", *datadogV2.NewListCostTagMetadataOptionalParameters()) if err != nil { fmt.Fprintf(os.Stderr, "Error when calling `CloudCostManagementApi.ListCostTagMetadata`: %v\n", err) fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r) } responseContent, _ := json.MarshalIndent(resp, "", " ") fmt.Fprintf(os.Stdout, "Response from `CloudCostManagementApi.ListCostTagMetadata`:\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_APP_KEY="" go run "main.go" ##### ```java // List Cloud Cost Management tag key metadata 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.CostTagKeyMetadataResponse; public class Example { public static void main(String[] args) { ApiClient defaultClient = ApiClient.getDefaultApiClient(); defaultClient.setUnstableOperationEnabled("v2.listCostTagMetadata", true); CloudCostManagementApi apiInstance = new CloudCostManagementApi(defaultClient); try { CostTagKeyMetadataResponse result = apiInstance.listCostTagMetadata("2026-02"); System.out.println(result); } catch (ApiException e) { System.err.println("Exception when calling CloudCostManagementApi#listCostTagMetadata"); 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_APP_KEY="" java "Example.java" ##### ```rust // List Cloud Cost Management tag key metadata 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::ListCostTagMetadataOptionalParams; #[tokio::main] async fn main() { let mut configuration = datadog::Configuration::new(); configuration.set_unstable_operation_enabled("v2.ListCostTagMetadata", true); let api = CloudCostManagementAPI::with_config(configuration); let resp = api .list_cost_tag_metadata( "filter[month]".to_string(), ListCostTagMetadataOptionalParams::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_APP_KEY="" cargo run ##### ```typescript /** * List Cloud Cost Management tag key metadata returns "OK" response */ import { client, v2 } from "@datadog/datadog-api-client"; const configuration = client.createConfiguration(); configuration.unstableOperations["v2.listCostTagMetadata"] = true; const apiInstance = new v2.CloudCostManagementApi(configuration); const params: v2.CloudCostManagementApiListCostTagMetadataRequest = { filterMonth: "filter[month]", }; apiInstance .listCostTagMetadata(params) .then((data: v2.CostTagKeyMetadataResponse) => { 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_APP_KEY="" tsc "example.ts" {% /tab %}