---
title: List hist signals
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > API Reference > Security Monitoring
---

# List hist signals{% #list-hist-signals %}
Copy pageCopied
{% tab title="v2" %}
**Note**: This endpoint is in beta and may be subject to changes. Please check the documentation regularly for updates.
| Datadog site      | API endpoint                                                                    |
| ----------------- | ------------------------------------------------------------------------------- |
| ap1.datadoghq.com | GET https://api.ap1.datadoghq.com/api/v2/siem-historical-detections/histsignals |
| ap2.datadoghq.com | GET https://api.ap2.datadoghq.com/api/v2/siem-historical-detections/histsignals |
| app.datadoghq.eu  | GET https://api.datadoghq.eu/api/v2/siem-historical-detections/histsignals      |
| app.ddog-gov.com  | GET https://api.ddog-gov.com/api/v2/siem-historical-detections/histsignals      |
| us2.ddog-gov.com  | GET https://api.us2.ddog-gov.com/api/v2/siem-historical-detections/histsignals  |
| app.datadoghq.com | GET https://api.datadoghq.com/api/v2/siem-historical-detections/histsignals     |
| us3.datadoghq.com | GET https://api.us3.datadoghq.com/api/v2/siem-historical-detections/histsignals |
| us5.datadoghq.com | GET https://api.us5.datadoghq.com/api/v2/siem-historical-detections/histsignals |

### Overview

List hist signals. This endpoint requires the `security_monitoring_signals_read` permission.

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



### Arguments

#### Query Strings

| Name          | Type    | Description                                                                                |
| ------------- | ------- | ------------------------------------------------------------------------------------------ |
| filter[query] | string  | The search query for security signals.                                                     |
| filter[from]  | string  | The minimum timestamp for requested security signals.                                      |
| filter[to]    | string  | The maximum timestamp for requested security signals.                                      |
| sort          | enum    | The order of the security signals in results. Allowed enum values: `timestamp, -timestamp` |
| page[cursor]  | string  | A list of results using the cursor provided in the previous query.                         |
| page[limit]   | integer | The maximum number of security signals in the response.                                    |

### Response

{% tab title="200" %}
OK
{% tab title="Model" %}
The response object with all security signals matching the request and pagination information.

| Parent field | Field      | Type      | Description                                                                                                                                 |
| ------------ | ---------- | --------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
|              | data       | [object]  | An array of security signals matching the request.                                                                                          |
| data         | attributes | object    | The object containing all signal attributes and their associated values.                                                                    |
| attributes   | custom     | object    | A JSON object of attributes in the security signal.                                                                                         |
| attributes   | message    | string    | The message in the security signal defined by the rule that generated the signal.                                                           |
| attributes   | tags       | [string]  | An array of tags associated with the security signal.                                                                                       |
| attributes   | timestamp  | date-time | The timestamp of the security signal.                                                                                                       |
| data         | id         | string    | The unique ID of the security signal.                                                                                                       |
| data         | type       | enum      | The type of event. Allowed enum values: `signal`                                                                                            |
|              | links      | object    | Links attributes.                                                                                                                           |
| links        | next       | string    | The link for the next set of results. **Note**: The request can also be made using the POST endpoint.                                       |
|              | meta       | object    | Meta attributes.                                                                                                                            |
| meta         | page       | object    | Paging attributes.                                                                                                                          |
| page         | after      | string    | The cursor used to get the next results, if any. To make the next request, use the same parameters with the addition of the `page[cursor]`. |

{% /tab %}

{% tab title="Example" %}

```json
{
  "data": [
    {
      "attributes": {
        "custom": {
          "workflow": {
            "first_seen": "2020-06-23T14:46:01.000Z",
            "last_seen": "2020-06-23T14:46:49.000Z",
            "rule": {
              "id": "0f5-e0c-805",
              "name": "Brute Force Attack Grouped By User",
              "version": 12
            }
          }
        },
        "message": "Detect Account Take Over (ATO) through brute force attempts",
        "tags": [
          "security:attack",
          "technique:T1110-brute-force"
        ],
        "timestamp": "2019-01-02T09:42:36.320Z"
      },
      "id": "AAAAAWgN8Xwgr1vKDQAAAABBV2dOOFh3ZzZobm1mWXJFYTR0OA",
      "type": "signal"
    }
  ],
  "links": {
    "next": "https://app.datadoghq.com/api/v2/security_monitoring/signals?filter[query]=foo\u0026page[cursor]=eyJzdGFydEF0IjoiQVFBQUFYS2tMS3pPbm40NGV3QUFBQUJCV0V0clRFdDZVbG8zY3pCRmNsbHJiVmxDWlEifQ=="
  },
  "meta": {
    "page": {
      "after": "eyJzdGFydEF0IjoiQVFBQUFYS2tMS3pPbm40NGV3QUFBQUJCV0V0clRFdDZVbG8zY3pCRmNsbHJiVmxDWlEifQ=="
    }
  }
}
```

{% /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" %}
Not Authorized
{% 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

##### 
                  \# Curl command curl -X GET "https://api.datadoghq.com/api/v2/siem-historical-detections/histsignals" \
-H "Accept: application/json" \
-H "DD-API-KEY: ${DD_API_KEY}" \
-H "DD-APPLICATION-KEY: ${DD_APP_KEY}" 
                
##### 

```python
"""
List hist signals returns "OK" response
"""

from datadog_api_client import ApiClient, Configuration
from datadog_api_client.v2.api.security_monitoring_api import SecurityMonitoringApi

configuration = Configuration()
configuration.unstable_operations["list_security_monitoring_histsignals"] = True
with ApiClient(configuration) as api_client:
    api_instance = SecurityMonitoringApi(api_client)
    response = api_instance.list_security_monitoring_histsignals()

    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
# List hist signals returns "OK" response

require "datadog_api_client"
DatadogAPIClient.configure do |config|
  config.unstable_operations["v2.list_security_monitoring_histsignals".to_sym] = true
end
api_instance = DatadogAPIClient::V2::SecurityMonitoringAPI.new
p api_instance.list_security_monitoring_histsignals()
```

#### 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
// List hist signals 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.ListSecurityMonitoringHistsignals", true)
	apiClient := datadog.NewAPIClient(configuration)
	api := datadogV2.NewSecurityMonitoringApi(apiClient)
	resp, r, err := api.ListSecurityMonitoringHistsignals(ctx, *datadogV2.NewListSecurityMonitoringHistsignalsOptionalParameters())

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

	responseContent, _ := json.MarshalIndent(resp, "", "  ")
	fmt.Fprintf(os.Stdout, "Response from `SecurityMonitoringApi.ListSecurityMonitoringHistsignals`:\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
// List hist signals returns "OK" response

import com.datadog.api.client.ApiClient;
import com.datadog.api.client.ApiException;
import com.datadog.api.client.v2.api.SecurityMonitoringApi;
import com.datadog.api.client.v2.model.SecurityMonitoringSignalsListResponse;

public class Example {
  public static void main(String[] args) {
    ApiClient defaultClient = ApiClient.getDefaultApiClient();
    defaultClient.setUnstableOperationEnabled("v2.listSecurityMonitoringHistsignals", true);
    SecurityMonitoringApi apiInstance = new SecurityMonitoringApi(defaultClient);

    try {
      SecurityMonitoringSignalsListResponse result =
          apiInstance.listSecurityMonitoringHistsignals();
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println(
          "Exception when calling SecurityMonitoringApi#listSecurityMonitoringHistsignals");
      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
// List hist signals returns "OK" response
use datadog_api_client::datadog;
use datadog_api_client::datadogV2::api_security_monitoring::ListSecurityMonitoringHistsignalsOptionalParams;
use datadog_api_client::datadogV2::api_security_monitoring::SecurityMonitoringAPI;

#[tokio::main]
async fn main() {
    let mut configuration = datadog::Configuration::new();
    configuration.set_unstable_operation_enabled("v2.ListSecurityMonitoringHistsignals", true);
    let api = SecurityMonitoringAPI::with_config(configuration);
    let resp = api
        .list_security_monitoring_histsignals(
            ListSecurityMonitoringHistsignalsOptionalParams::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
/**
 * List hist signals returns "OK" response
 */

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

const configuration = client.createConfiguration();
configuration.unstableOperations["v2.listSecurityMonitoringHistsignals"] = true;
const apiInstance = new v2.SecurityMonitoringApi(configuration);

apiInstance
  .listSecurityMonitoringHistsignals()
  .then((data: v2.SecurityMonitoringSignalsListResponse) => {
    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 %}