---
title: Get All Host Tags
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > API Reference > Tags
---

# Get All Host Tags{% #get-all-host-tags %}
Copy pageCopied
{% tab title="v1" %}

| Datadog site      | API endpoint                                        |
| ----------------- | --------------------------------------------------- |
| ap1.datadoghq.com | GET https://api.ap1.datadoghq.com/api/v1/tags/hosts |
| ap2.datadoghq.com | GET https://api.ap2.datadoghq.com/api/v1/tags/hosts |
| app.datadoghq.eu  | GET https://api.datadoghq.eu/api/v1/tags/hosts      |
| app.ddog-gov.com  | GET https://api.ddog-gov.com/api/v1/tags/hosts      |
| us2.ddog-gov.com  | GET https://api.us2.ddog-gov.com/api/v1/tags/hosts  |
| app.datadoghq.com | GET https://api.datadoghq.com/api/v1/tags/hosts     |
| us3.datadoghq.com | GET https://api.us3.datadoghq.com/api/v1/tags/hosts |
| us5.datadoghq.com | GET https://api.us5.datadoghq.com/api/v1/tags/hosts |

### Overview

Returns a mapping of tags to hosts. For each tag, the response returns a list of host names that contain this tag. There is a restriction of 10k total host names from the org that can be attached to tags and returned.

### Arguments

#### Query Strings

| Name   | Type   | Description                                                                                                                                                                                 |
| ------ | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| source | string | Source to filter. [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value.md). Use "user" source for custom-defined tags. |

### Response

{% tab title="200" %}
OK
{% tab title="Model" %}
In this object, the key is the tag, and the value is a list of host names that are reporting that tag.

| Parent field         | Field     | Type     | Description                                 |
| -------------------- | --------- | -------- | ------------------------------------------- |
|                      | tags      | object   | A mapping of tags to host names             |
| additionalProperties | <any-key> | [string] | A list of host names which contain this tag |

{% /tab %}

{% tab title="Example" %}

```json
{
  "tags": {
    "<any-key>": [
      "test.metric.host"
    ]
  }
}
```

{% /tab %}

{% /tab %}

{% tab title="403" %}
Forbidden
{% tab title="Model" %}
Error response object.

| Field                    | Type     | Description                          |
| ------------------------ | -------- | ------------------------------------ |
| errors [*required*] | [string] | Array of errors returned by the API. |

{% /tab %}

{% tab title="Example" %}

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

{% /tab %}

{% /tab %}

{% tab title="404" %}
Not Found
{% tab title="Model" %}
Error response object.

| Field                    | Type     | Description                          |
| ------------------------ | -------- | ------------------------------------ |
| errors [*required*] | [string] | Array of errors returned by the API. |

{% /tab %}

{% tab title="Example" %}

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

{% /tab %}

{% /tab %}

{% tab title="429" %}
Too many requests
{% tab title="Model" %}
Error response object.

| Field                    | Type     | Description                          |
| ------------------------ | -------- | ------------------------------------ |
| errors [*required*] | [string] | Array of errors returned by the API. |

{% /tab %}

{% tab title="Example" %}

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

{% /tab %}

{% /tab %}

### Code Example

##### 
                  \# Curl command curl -X GET "https://api.datadoghq.com/api/v1/tags/hosts" \
-H "Accept: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-H "DD-APPLICATION-KEY: ${DD_APP_KEY}" 
                
##### 

```python
"""
Get All Host Tags returns "OK" response
"""

from datadog_api_client import ApiClient, Configuration
from datadog_api_client.v1.api.tags_api import TagsApi

configuration = Configuration()
with ApiClient(configuration) as api_client:
    api_instance = TagsApi(api_client)
    response = api_instance.list_host_tags()

    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 All Host Tags returns "OK" response

require "datadog_api_client"
api_instance = DatadogAPIClient::V1::TagsAPI.new
p api_instance.list_host_tags()
```

#### 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 All Host Tags 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/datadogV1"
)

func main() {
	ctx := datadog.NewDefaultContext(context.Background())
	configuration := datadog.NewConfiguration()
	apiClient := datadog.NewAPIClient(configuration)
	api := datadogV1.NewTagsApi(apiClient)
	resp, r, err := api.ListHostTags(ctx, *datadogV1.NewListHostTagsOptionalParameters())

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

	responseContent, _ := json.MarshalIndent(resp, "", "  ")
	fmt.Fprintf(os.Stdout, "Response from `TagsApi.ListHostTags`:\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 All Host Tags returns "OK" response

import com.datadog.api.client.ApiClient;
import com.datadog.api.client.ApiException;
import com.datadog.api.client.v1.api.TagsApi;
import com.datadog.api.client.v1.model.TagToHosts;

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

    try {
      TagToHosts result = apiInstance.listHostTags();
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println("Exception when calling TagsApi#listHostTags");
      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 All Host Tags returns "OK" response
use datadog_api_client::datadog;
use datadog_api_client::datadogV1::api_tags::ListHostTagsOptionalParams;
use datadog_api_client::datadogV1::api_tags::TagsAPI;

#[tokio::main]
async fn main() {
    let configuration = datadog::Configuration::new();
    let api = TagsAPI::with_config(configuration);
    let resp = api
        .list_host_tags(ListHostTagsOptionalParams::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 All Host Tags returns "OK" response
 */

import { client, v1 } from "@datadog/datadog-api-client";

const configuration = client.createConfiguration();
const apiInstance = new v1.TagsApi(configuration);

apiInstance
  .listHostTags()
  .then((data: v1.TagToHosts) => {
    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 %}