> For the complete documentation index, see [llms.txt](https://docs.zama.org/protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zama.org/protocol/sdk/api-references/react/useclearcredentials.md).

# useClearCredentials

Wipe the transport key pair for the current signer and cascade-delete every permit (across chains and delegators) referencing it. Use this for "log out" handlers that should leave no trace.

## Import

```ts
import { useClearCredentials } from "@zama-fhe/react-sdk";
```

## Usage

{% tabs %}
{% tab title="LogoutPanel.tsx" %}

```tsx
import { useClearCredentials } from "@zama-fhe/react-sdk";

function LogoutPanel() {
  const { mutate: clearCredentials, isPending } = useClearCredentials();

  return (
    <button onClick={() => clearCredentials()} disabled={isPending}>
      {isPending ? "Clearing..." : "Clear all credentials"}
    </button>
  );
}
```

{% endtab %}
{% endtabs %}

## Parameters

`useClearCredentials` takes no constructor parameters.

## Mutation variables

No mutation variables. Call `mutate()` or `mutateAsync()` with no arguments.

```ts
const { mutate: clearCredentials } = useClearCredentials();

clearCredentials();
```

## Return Type

## Behavior

* Wipes the transport key pair for the connected wallet.
* Cascade-deletes every permit across all chains and delegators.
* Auto-invalidates all [`useHasPermit`](/protocol/sdk/api-references/react/usehaspermit.md) queries on success.
* After clearing, any decrypt operation will generate a fresh transport key pair and prompt for new permits.

{% hint style="info" %}
The SDK auto-clears credentials on wallet disconnect or account change when the signer adapter implements `walletAccount.subscribe()`. You do not need to call this hook manually for that case.
{% endhint %}

## Related

* [`useRevokePermits`](/protocol/sdk/api-references/react/userevokepermits.md) — remove permits without touching the transport key pair
* [`useGrantPermit`](/protocol/sdk/api-references/react/usegrantpermit.md) — sign permits for contracts
* [`useHasPermit`](/protocol/sdk/api-references/react/usehaspermit.md) — check whether stored permits cover contracts


---

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