[Home](./index.md) > [@firebase/auth](./auth.md) > [OAuthCredential](./auth.oauthcredential.md) > [idToken](./auth.oauthcredential.idtoken.md) ## OAuthCredential.idToken property The OAuth ID token associated with the credential if it belongs to an OIDC provider, such as `google.com`. Signature: ```typescript idToken?: string; ```