> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ramphub.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Authentication

Send `x-api-key` on every developer request.

## Requirements

* Keep keys on the server.
* Never ship keys in browser bundles or mobile clients.
* Use separate test and live keys.
* Include the header on every `/api/developer/*` request.

## Example

```bash theme={null}
x-api-key: rh_test_...
```

Keys are shown once when they are created or rotated. Store them immediately and reject the request before any provider call starts if the key is missing or invalid.