# Getting Started

- [Register](https://pay-apidocs.fizen.io/getting-started/register.md): Merchant must create an account at Register Page before making all authorized requests to the system.
- [Environment](https://pay-apidocs.fizen.io/getting-started/environment.md): There are 2 environments for merchant integration. All functions should work fine on the Sandbox environment before integrating on the Production environment.
- [Get your API keys](https://pay-apidocs.fizen.io/getting-started/get-your-api-keys.md): There are 2 environments for merchant integration. All functions should work fine on the Sandbox environment before integrating on the Production environment.
- [Make your first API request](https://pay-apidocs.fizen.io/getting-started/make-your-first-api-request.md): To make your first request, send an authenticated request to the /charges endpoint. This will create a charge.


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