[Home](./index.md) > [@firebase/auth](./auth.md) > [fetchSignInMethodsForEmail](./auth.fetchsigninmethodsforemail.md) ## fetchSignInMethodsForEmail() function Gets the list of possible sign in methods for the given email address. Signature: ```typescript export declare function fetchSignInMethodsForEmail(auth: Auth, email: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | auth | [Auth](./auth.auth.md) | The Auth instance. | | email | string | The user's email address. | Returns: Promise<string\[\]> ## Remarks This is useful to differentiate methods of sign-in for the same provider, eg. [EmailAuthProvider](./auth.emailauthprovider.md) which has 2 methods of sign-in, [SignInMethod.EMAIL\_PASSWORD](./auth.signinmethod.email_password.md) and [SignInMethod.EMAIL\_LINK](./auth.signinmethod.email_link.md) .