---
title: Get the total number of active hosts
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > API Reference > Hosts
---

# Get the total number of active hosts{% #get-the-total-number-of-active-hosts %}
Copy pageCopied
{% tab title="v1" %}

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

### Overview

This endpoint returns the total number of active and up hosts in your Datadog account. Active means the host has reported in the past hour, and up means it has reported in the past two hours. This endpoint requires the `hosts_read` permission.

OAuth apps require the `hosts_read` authorization [scope](https://docs.datadoghq.com/api/latest/scopes.md#hosts) to access this endpoint.



### Arguments

#### Query Strings

| Name | Type    | Description                                                                |
| ---- | ------- | -------------------------------------------------------------------------- |
| from | integer | Number of seconds from which you want to get total number of active hosts. |

### Response

{% tab title="200" %}
OK
{% tab title="Model" %}
Total number of host currently monitored by Datadog.

| Field        | Type  | Description                                                    |
| ------------ | ----- | -------------------------------------------------------------- |
| total_active | int64 | Total number of active host (UP and ???) reporting to Datadog. |
| total_up     | int64 | Number of host that are UP and reporting to Datadog.           |

{% /tab %}

{% tab title="Example" %}

```json
{
  "total_active": "integer",
  "total_up": "integer"
}
```

{% /tab %}

{% /tab %}

{% tab title="400" %}
Invalid Parameter Error
{% 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="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="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/hosts/totals" \
-H "Accept: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-H "DD-APPLICATION-KEY: ${DD_APP_KEY}" 
                
##### 

```python
"""
Get the total number of active hosts returns "OK" response
"""

from datadog_api_client import ApiClient, Configuration
from datadog_api_client.v1.api.hosts_api import HostsApi

configuration = Configuration()
with ApiClient(configuration) as api_client:
    api_instance = HostsApi(api_client)
    response = api_instance.get_host_totals()

    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 the total number of active hosts returns "OK" response

require "datadog_api_client"
api_instance = DatadogAPIClient::V1::HostsAPI.new
p api_instance.get_host_totals()
```

#### 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"
##### 

```ruby
require 'rubygems'
require 'dogapi'

api_key = '<DATADOG_API_KEY>'
app_key = '<DATADOG_APPLICATION_KEY>'

dog = Dogapi::Client.new(api_key, app_key)

dog.host_totals()
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=ruby-legacy) 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 the total number of active hosts 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.NewHostsApi(apiClient)
	resp, r, err := api.GetHostTotals(ctx, *datadogV1.NewGetHostTotalsOptionalParameters())

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

	responseContent, _ := json.MarshalIndent(resp, "", "  ")
	fmt.Fprintf(os.Stdout, "Response from `HostsApi.GetHostTotals`:\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 the total number of active hosts returns "OK" response

import com.datadog.api.client.ApiClient;
import com.datadog.api.client.ApiException;
import com.datadog.api.client.v1.api.HostsApi;
import com.datadog.api.client.v1.model.HostTotals;

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

    try {
      HostTotals result = apiInstance.getHostTotals();
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println("Exception when calling HostsApi#getHostTotals");
      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"
##### 

```python
from datadog import initialize, api

options = {
    'api_key': '<DATADOG_API_KEY>',
    'app_key': '<DATADOG_APPLICATION_KEY>'
}

initialize(**options)

api.Hosts.totals()
```

#### Instructions

First [install the library and its dependencies](https://docs.datadoghq.com/api/latest.md?code-lang=python-legacy) 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>" python "example.py"
##### 

```rust
// Get the total number of active hosts returns "OK" response
use datadog_api_client::datadog;
use datadog_api_client::datadogV1::api_hosts::GetHostTotalsOptionalParams;
use datadog_api_client::datadogV1::api_hosts::HostsAPI;

#[tokio::main]
async fn main() {
    let configuration = datadog::Configuration::new();
    let api = HostsAPI::with_config(configuration);
    let resp = api
        .get_host_totals(GetHostTotalsOptionalParams::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 the total number of active hosts returns "OK" response
 */

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

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

apiInstance
  .getHostTotals()
  .then((data: v1.HostTotals) => {
    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 %}