[Home](./index.md) > [@firebase/auth](./auth.md) > [PhoneAuthCredential](./auth.phoneauthcredential.md) ## PhoneAuthCredential class Represents the credentials returned by [PhoneAuthProvider](./auth.phoneauthprovider.md). Signature: ```typescript export declare class PhoneAuthCredential extends AuthCredential ``` Extends: [AuthCredential](./auth.authcredential.md) ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [fromJSON(json)](./auth.phoneauthcredential.fromjson.md) | static | Generates a phone credential based on a plain object or a JSON string. | | [toJSON()](./auth.phoneauthcredential.tojson.md) | | Returns a JSON-serializable representation of this object. |