# Manage Users

You can manage PostgreSQL users in your cluster using the <code class="expression">space.vars.ionos\_cloud</code> API. Programmatically create, list, retrieve, update, and remove users by sending requests to the cluster's user management endpoint. The following APIs covers the available operations and provides example requests and responses for each.

## Quick Links

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>List all Users</strong></mark></td><td>Learn how to list all PostgreSQL users in your cluster.</td><td><a href="/pages/xTcLqIgB30jWRihTlRKd">/pages/xTcLqIgB30jWRihTlRKd</a></td></tr><tr><td><mark style="color:blue;"><strong>List System Users</strong></mark></td><td>Learn how to list all PostgreSQL system users in your cluster.</td><td><a href="/pages/0t0nMleHgYGHBu9kWBsK">/pages/0t0nMleHgYGHBu9kWBsK</a></td></tr><tr><td><mark style="color:blue;"><strong>Retrieve a Single User</strong></mark></td><td>Learn how to retrieve details for a specific PostgreSQL user.</td><td><a href="/pages/2MmpDd95QXhKhyWIJABU">/pages/2MmpDd95QXhKhyWIJABU</a></td></tr><tr><td><mark style="color:blue;"><strong>Create a User</strong></mark></td><td>Learn how to create a new PostgreSQL user.</td><td><a href="/pages/4FWkUmz6zwizRvoIIZr6">/pages/4FWkUmz6zwizRvoIIZr6</a></td></tr><tr><td><mark style="color:blue;"><strong>Remove a User</strong></mark></td><td>Learn how to remove a PostgreSQL user from your cluster.</td><td><a href="/pages/kuvRlWXlHWAvZ3djFFvW">/pages/kuvRlWXlHWAvZ3djFFvW</a></td></tr><tr><td><mark style="color:blue;"><strong>Change the Login Password</strong></mark></td><td>Learn how to change the login password for a PostgreSQL user.</td><td><a href="/pages/WWJWnObwuUPIdgyJBxQP">/pages/WWJWnObwuUPIdgyJBxQP</a></td></tr></tbody></table>


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ionos.com/cloud/databases/postgresql/api/v1-api/users-and-databases/manage-users.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.