> For the complete documentation index, see [llms.txt](https://doc.paynet.com.tr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.paynet.com.tr/english/card-save/sending-otp.md).

# Sending OTP

If OTP verification is necessary in member workplace card storage services, it sends an OTP code to the relevant number (last user) by using this service.

{% hint style="success" %}
<https://api.paynet.com.tr/v1/card/send_otp>
{% endhint %}

{% tabs %}
{% tab title="Request Parameters" %}

| Parameter Name       | Type   | Required | Description                                                                                                                  |
| -------------------- | ------ | -------- | ---------------------------------------------------------------------------------------------------------------------------- |
| **user\_gsm**        | string | Yes      | Phone number to send OTP.                                                                                                    |
| **otp\_session\_id** | string | Yes      | The unique value that will be associate with the OTP. This value is associated with the card information that will be saved. |
| {% endtab %}         |        |          |                                                                                                                              |

{% tab title="Response Parameters" %}

| Parameter Name  | Type     | Description                                                                                            |
| --------------- | -------- | ------------------------------------------------------------------------------------------------------ |
| **otp\_expire** | datetime | OTP's expiration time ,should not be run again before this time.                                       |
| **code**        | string   | Code of response result. [Expr](https://doc.paynet.com.tr/genel-bilgiler/hata-kodlari/doenues-kodlari) |
| **message**     | string   | Response result message.                                                                               |
| {% endtab %}    |          |                                                                                                        |

{% tab title="Request" %}

```
{  
   "user_gsm":"5xxxyyzz",
   "otp_session_id":"otp_session_id"
}
```

{% endtab %}

{% tab title="Response" %}

```
{  
   "otp_expire":"2017-07-17T15:30:15.0581408+03:00",
   "code":0,
   "message":"Başarılı İşlem"
}
```

{% endtab %}

{% tab title="Service URL" %}

| System          | URL                                                                                                                                                                                                  |
| --------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Live System** | [https://api.paynet.com.tr\[/v1/card/send\\\_otp](https://doc.paynet.com.tr/english/card-save/https:/api.paynet.com.tr\[/v1/card/send\\_otp)]\(<https://api.paynet.com.tr/v1/card/send_otp>)         |
| **Test System** | [https://pts-api.paynet.com.tr\[/v1/card/send\\\_otp](https://doc.paynet.com.tr/english/card-save/https:/pts-api.paynet.com.tr\[/v1/card/send\\_otp)]\(<https://api.paynet.com.tr/v1/card/send_otp>) |
| {% endtab %}    |                                                                                                                                                                                                      |
| {% endtabs %}   |                                                                                                                                                                                                      |


---

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```
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