> ## Documentation Index
> Fetch the complete documentation index at: https://www.marqeta.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# User Authentication Overview

> Use these endpoints to manage cardholder authentication, including access tokens, sign in and sign out, password changes and resets, and email verification.

Use these endpoints to manage cardholder authentication, including access tokens, sign in and sign out, password changes and resets, and email verification.

## Available operations

| Operation | Method | Endpoint |
| :- | :- | :- |
| [**Update user password**](https://www.marqeta.com/docs/core-api/users/user-authentication/update-password.md) | POST | `/users/auth/changepassword` |
| [**Create client access token**](https://www.marqeta.com/docs/core-api/users/user-authentication/create-client-access-token.md) | POST | `/users/auth/clientaccesstoken` |
| [**Retrieve client access token**](https://www.marqeta.com/docs/core-api/users/user-authentication/get-client-access-token.md) | GET | `/users/auth/clientaccesstoken/{token}` |
| [**Log in user**](https://www.marqeta.com/docs/core-api/users/user-authentication/login.md) | POST | `/users/auth/login` |
| [**Log out user**](https://www.marqeta.com/docs/core-api/users/user-authentication/logout.md) | POST | `/users/auth/logout` |
| [**Create single-use token**](https://www.marqeta.com/docs/core-api/users/user-authentication/create-single-use-token.md) | POST | `/users/auth/onetime` |
| [**Request user password reset token**](https://www.marqeta.com/docs/core-api/users/user-authentication/request-password-reset.md) | POST | `/users/auth/resetpassword` |
| [**Reset user password**](https://www.marqeta.com/docs/core-api/users/user-authentication/reset-password.md) | POST | `/users/auth/resetpassword/{token}` |
| [**Request email verification token**](https://www.marqeta.com/docs/core-api/users/user-authentication/request-email-verification.md) | POST | `/users/auth/verifyemail` |
| [**Verify email address**](https://www.marqeta.com/docs/core-api/users/user-authentication/verify-email.md) | POST | `/users/auth/verifyemail/{token}` |


## Related topics

- [Users Overview](https://www.marqeta.com/docs/core-api/users.md)
- [User Transitions Overview](https://www.marqeta.com/docs/core-api/user-transitions.md)
- [Authentication](https://www.marqeta.com/docs/core-api/authentication.md)
- [3D Secure Overview](https://www.marqeta.com/docs/core-api/3ds.md)
- [UX Toolkit Overview](https://www.marqeta.com/docs/developer-guides/uxt-landing-page.md)