> For the complete documentation index, see [llms.txt](https://pay-apidocs.fizen.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pay-apidocs.fizen.io/getting-started/get-your-api-keys.md).

# Get your API keys

Your API requests are authenticated using API keys. Any request that doesn't include an API key will return an error.

You can generate an API key from your **Setting page** at any time.

* Generate on [Sandbox](https://merchant-testmode.fizen.io/dashboard/settings) environment
* Or Generate on [Production](https://merchant.fizen.io/dashboard/settings) environment