# 1. Check

## Check

<mark style="color:blue;">`GET`</mark> `{{Base Address}}/api/v1/fraud/blacklist/check?entryType=1&value=xxxx@gmail.com`

It is sufficient to send a request to the address provided above. You can use the **Base Address** as needed for both the test environment and the live environment.

{% hint style="info" %}
**Important:** To use the **Fraud – Blacklist – Check** service, you must include the **apikeyprivate** and **apiclientprivate** parameters in the **Header**.\
\
[<mark style="color:green;">**FraudAPI Address**</mark>](/payment-orchestration-integration-document/environment.md)
{% endhint %}

#### The header information to be sent to the service is as follows:

<table><thead><tr><th width="200.15625">Parameter</th><th width="106.33333333333331">Type</th><th width="139.0625">Compolsory</th><th>Description</th></tr></thead><tbody><tr><td>apikeyprivate</td><td>string</td><td>Yes</td><td>The <strong>Private Key</strong> obtained from the merchant panel.</td></tr><tr><td>apiclientprivate</td><td>string</td><td>Yes</td><td>The <strong>Private Client</strong> obtained from the merchant panel.</td></tr></tbody></table>

**Response returned from the service:**

<table><thead><tr><th width="156">Parameter</th><th width="83.33333333333331">Type</th><th>Description</th></tr></thead><tbody><tr><td>Body</td><td>object</td><td>JSON containing detailed balance information (optional)</td></tr><tr><td>ErrorCode</td><td>int</td><td>Error code. Returns '0' if the operation is successful</td></tr><tr><td>Result</td><td>bool</td><td>Error code. Returns '0' if aReturns true or false. If the operation is successful, it returns true operation is successful</td></tr><tr><td>Message</td><td>string</td><td>If the operation fails, it returns the relevant error message and provides language support based on the locale parameter</td></tr></tbody></table>

{% tabs %}
{% tab title="JSOB" %}
{% code overflow="wrap" lineNumbers="true" %}

```json5
{
    "Value": {
        "Id": "550b5305-2a56-4577-bb2c-dbce55f6cc2a",
        "MerchantId": 2071,
        "EntryType": 1,
        "Value": "stringst****ring",
        "Reason": "string",
        "ExpiresAt": null,
        "IsPermanent": true,
        "CreatedAt": "2026-02-22T16:45:26.6801206Z",
        "IsActive": true
    },
    "IsFailure": false,
    "IsSuccess": true,
    "Error": null
}
```

{% endcode %}
{% endtab %}
{% endtabs %}


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