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# EmbedTokenCredentialProvider

> Credential provider that exchanges an embed token for a SAT via the host's token endpoint.

Credential provider that exchanges an embed token for a SAT via the host's token endpoint.

## **Implements**

* [`CredentialProvider`](/docs/browser-sdk/v4/reference/interfaces/credential-provider)

## **Constructors**

### Constructor

```ts
new EmbedTokenCredentialProvider(host, embedToken): EmbedTokenCredentialProvider
```

### Parameters

**`host`** `string` — required

Hostname or origin used for transport and REST calls.

---

**`embedToken`** `string` — required

Embed token issued by the host application's token endpoint.

---

## **Methods**

#### [authenticate](/docs/browser-sdk/v4/reference/credential-providers/embed-token-credential-provider/authenticate)

Obtains the initial credentials. Called once during client initialization.

#### [refresh](/docs/browser-sdk/v4/reference/credential-providers/embed-token-credential-provider/refresh)

Obtains fresh credentials before the current ones expire. Optional.

> Credential provider that exchanges an embed token for a SAT via the host's token endpoint.

## Docs

- [authenticate](https://signalwire.com/docs/browser-sdk/reference/credential-providers/embed-token-credential-provider/authenticate.md): Obtains the initial credentials.
- [refresh](https://signalwire.com/docs/browser-sdk/reference/credential-providers/embed-token-credential-provider/refresh.md): Obtains fresh credentials before the current ones expire.