# Register

{% hint style="info" %}
You can make requests to Fizen Pay directly on the **Web app** by logged-in account or make external requests (from: e-commerce platforms, your applications/systems...) by **API keys**.
{% endhint %}

1. Register an account on Sandbox environment for developing or testing purposes
   * <https://merchant-testmode.fizen.io/signup>
2. Register a production account to launch your business:
   * &#x20;<https://merchant.fizen.io/signup>