# Get balance

This endpoint is used to get your balance of the account.

## HTTP request

\ <mark style="color:yellow;">**`POST`**</mark> <http://rest.esms.vn/MainService.svc/json/GetBalance_json><br>

* **Content Type:** <mark style="color:orange;">application/json</mark>
* **Response Type:** <mark style="color:orange;">application/json</mark>

```json
curl --location 'http://rest.esms.vn/MainService.svc/json/GetBalance_json' \
--header 'Content-Type: application/json' \
--data '{
"ApiKey":"{{ApiKey}}",
"SecretKey":"{{SecretKey}}"
}'
```

* **Request body:**

<table><thead><tr><th width="145">Parameter</th><th width="140">Type</th><th data-type="checkbox">Require</th><th>Description</th></tr></thead><tbody><tr><td>ApiKey</td><td>string</td><td>true</td><td>Your API Key.</td></tr><tr><td>SecretKey</td><td>string</td><td>true</td><td>Your Secret Key.</td></tr></tbody></table>

***

* **Response:**

{% tabs %}
{% tab title="100" %}

```json
{
    "Balance": 36693,
    "CodeResponse": "100",
    "UserID": 9999
}
```

**Valid request.**
{% endtab %}

{% tab title="101" %}

```json
{
    "Balance": 0,
    "CodeResponse": "101",
    "ErrorMessage": "Authorize Failed"
}
```

**Invalid credentials.**
{% endtab %}
{% endtabs %}

* **Response body:**

| Parameter    | Type   | Description           |
| ------------ | ------ | --------------------- |
| Balance      | string | Your account balance. |
| CodeResponse | string | Response code.        |
| UserID       | string | The user' id at eSMS. |

* *<mark style="color:yellow;">**The detail of error code can refer at**</mark>* [**Table of error codes**](/en/esms-api/table-of-error-codes.md) **.**
* *<mark style="color:yellow;">**Get the  sample of code for programing languagues to use in Postman refer at**</mark>* [**Link  of code samples**](https://samplefordevelopers.esms.vn/#850974b9-12cf-46f5-946c-e8e15aa3585b)**.**


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.esms.vn/en/esms-api/retrive-and-register-functions/get-balance.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.