# In-app Currency Exchange

<figure><img src="/files/b9x4jxpQq9Lqhukjkp3s" alt=""><figcaption></figcaption></figure>

MBX Station is essentially a trading hub for gamers in the ecosystem. Its exchange interface provides a two-way exchange between In-app Currency and gMBX.

* The direction of the exchange can be changed by pressing the exchange direction button <img src="/files/jtzH1Rt95OhFpvmiT2nB" alt="" data-size="line">&#x20;
* Each game has its own restrictions, such as daily exchange limits, the number of exchanges allowed, and the reset period.
* When exchanging In-app Currency for gMBX, a commission fee may be required in the form of the In-app Currency, depending on the game. These items can be purchased through in-app purchases or via a web marketplace (a purchase link will be provided next to the owned amount). Please refer to the specific purchase process, as it may vary by game.
* Once In-app Currency is exchanged into gMBX, they can be used with different games.

By enhancing the utility of MBX tokens through the comprehensive game token, MBX Game Token (gMBX), MBX Station supports a dynamic gaming environment featuring diverse titles.

***

## Exchange rate: In-app Currency ↔ gMBX

The exchange between In-app Currency and tokens utilizes the AMM structure, which may change depending on the inflow and outflow of In-app Currency.

Each game project consists of an initial pool containing a specific volume of gMBX and In-app Currency. The exchange rate (k) is calculated as follows.

$$
k = (Currency) × (gMBX)
$$

Each game project plays a crucial role in maintaining an optimal exchange rate for the pools between In-appCurrency and gMBX. Depending on each game's economy, restrictions may be applied to the exchange conditions. The main restrictions can include, but are not limited to, the following:

* Maximum/minimum exchange volume per trade
* Maximum daily trade volume per user
* Maximum daily trade volume per project

***

## Fees

A fee will be charged when exchanging In-app Currency for gMBX, vice versa, based on the exchange value. This can happen in two ways:

#### Fees charged as gMBX

| From            | To              | Fee                             |
| --------------- | --------------- | ------------------------------- |
| In-app Currency | gMBX            | 1% of total gMBX exchange value |
| gMBX            | In-app Currency | N/A                             |

#### Fees charged as In-app Currency

{% hint style="info" %}
Determined by the commission fee set by the game. Please check the commission rate and calculation method at the respective Exchange tab for each game on MBX Station.
{% endhint %}


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