> ## 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.

# publishableKey

> The publishable-key counterpart of `secretKey`.

```ts theme={null}
publishableKey(value: string | undefined | null): EndstatePublishableKey
```

## Example

```ts theme={null}
const endstate = new EndstatePublicClient({
  publishableKey: publishableKey(process.env.NEXT_PUBLIC_ENDSTATE_KEY),
});
```