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

# EndstateConfigError

> A credential was missing or wrong-prefixed, caught at startup by `secretKey()` or `publishableKey()`.

```ts theme={null}
class EndstateConfigError extends EndstateError
```

## Example

```ts theme={null}
secretKey(undefined); // throws EndstateConfigError
```