> For the complete documentation index, see [llms.txt](https://docs.pagsmile.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pagsmile.com/reference/remittance-api/business/exchange/query-support-currency-pairs.md).

# Query Support Currency Pairs

Retrieves the currency pairs currently supported for foreign exchange.

**Endpoint**

`POST /remittance/exchange/query-currency-pairs`

**Sandbox base URL:** `https://rem-api-sandbox.pagsmile.com`\
**Content-Type:** `application/json; charset=UTF-8`

The request uses the standard [Remittance API request envelope](https://docs.pagsmile.com/remittance-api/common). The fields below describe the decrypted `biz_data` object.

{% hint style="info" %}
**Requirement:** `M` = Mandatory, `O` = Optional, and `C` = Conditional. A conditional field is mandatory only when the condition stated in its description applies.
{% endhint %}

{% hint style="warning" %}
Encrypt `biz_data`, encrypt the AES key into `random_key`, and sign the request according to the Common request specification.
{% endhint %}

**Request body**

**Decrypted `biz_data` fields**

| Field         | Type   | Requirement | Description                                          |
| ------------- | ------ | ----------- | ---------------------------------------------------- |
| `partner_id`  | string | M           | Pagsmile-assigned unique identifier of the partner.  |
| `merchant_id` | long   | O           | Pagsmile-assigned unique identifier of the merchant. |

**Plaintext `biz_data` example**

{% hint style="info" %}
This example includes mandatory fields and representative optional or conditional fields. Submit fields marked `C` only when the condition in the field description applies.
{% endhint %}

```json
{
  "partner_id": "200000001000001",
  "merchant_id": 100398
}
```

**Request example**

```bash
curl --request POST \
  --url https://rem-api-sandbox.pagsmile.com/remittance/exchange/query-currency-pairs \
  --header 'Content-Type: application/json; charset=UTF-8' \
  --data '{
    "partner_id": "<your_partner_id>",
    "app_id": "<your_app_id>",
    "timestamp": "2026-07-20 10:30:00",
    "version": "2.0",
    "language": "en",
    "random_key": "<RSA-encrypted AES key>",
    "request_id": "<globally_unique_request_id>",
    "sign_type": "RSA",
    "biz_data": "<AES-encrypted biz_data>"
  }'
```

{% hint style="info" %}
Use the `partner_id` and `app_id` assigned to your integration. The values above are placeholders.
{% endhint %}

**Response**

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

```json
{
  "code": "10000",
  "msg": "Success",
  "data": [
    {
      "buy_currency": "USD",
      "sell_currency": "MXN"
    },
    {
      "buy_currency": "MXN",
      "sell_currency": "USD"
    }
  ],
  "random_key": "abssdddd2wdw==",
  "sign_type": "RSA",
  "app_id": "2017051914172236111"
}
```

{% endtab %}

{% tab title="Invalid signature" %}

```json
{
  "code": "40002",
  "msg": "Business Failed",
  "sub_code": "invalid-signature",
  "sub_msg": "invalid signature"
}
```

{% endtab %}
{% endtabs %}

**Response data fields**

| Field           | Type   | Requirement | Description                                                 |
| --------------- | ------ | ----------- | ----------------------------------------------------------- |
| `buy_currency`  | string | O           | Three-letter ISO 4217 code of the currency being purchased. |
| `sell_currency` | string | O           | Three-letter ISO 4217 code of the currency being sold.      |

**Related APIs**

* [Create Exchange Order](https://docs.pagsmile.com/remittance-api/business/exchange/create-exchange-order)
* [Query Exchange Orders](https://docs.pagsmile.com/remittance-api/business/exchange/query-exchange-orders)
* [Query Quote](https://docs.pagsmile.com/remittance-api/business/exchange/query-quote)