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

# Integration guide

> This page contains information on several tools and critical concepts that you should know as. Reference for the X API v2 standard tier covering bookmarks.

export const Button = ({href, children}) => {
  return <div className="not-prose group">
    <a href={href}>
      <button className="flex items-center space-x-2.5 py-1 px-4 bg-primary-dark dark:bg-white text-white dark:text-gray-950 rounded-full group-hover:opacity-[0.9] font-medium">
        <span>
          {children}
        </span>
        <svg width="3" height="24" viewBox="0 -9 3 24" class="h-6 rotate-0 overflow-visible"><path d="M0 0L3 3L0 6" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round"></path></svg>
      </button>
    </a>
  </div>;
};

This page contains information on several tools and critical concepts that you should know as you integrate the manage Bookmarks endpoints into your system. We've broken the page into a couple of different sections:

* [Helpful tools](/x-api/users/blocks/integrate#helpful-tools)
* Key Concepts
  * [Authentication](/x-api/users/blocks/integrate#authentication)
  * [Developer Console, Projects, and Apps](/x-api/users/blocks/integrate#developer-console-projects-and-developer-apps)
  * [Rate limits](/x-api/users/blocks/integrate#rate-limits)

### Helpful tools

Before we dive into some key concepts that will help you integrate this endpoint, we recommend that you become familiar with:

#### Postman

Postman is a great tool that you can use to test out an endpoint. Each Postman request includes every path and body parameter to help you quickly understand what is available to you. To learn more about our Postman collections, please visit our ["Using Postman"](/tutorials/postman-getting-started) page.

#### Code samples

Are you interested in getting set up with this endpoint with some code in your preferred coding language? We've got a handful of different code samples available that you can use as a starting point on our [Github page](https://github.com/xdevplatform/Twitter-API-v2-sample-code).

#### Third-party libraries

Take advantage of one of our communities' [third-party libraries](/tools-and-libraries) to help you get started. You can find a library that works with the v2 endpoints by looking for the proper version tag.

### Key concepts

#### Authentication

All X API v2 endpoints require you to authenticate your requests with a set of credentials, also known as keys and tokens.

These specific endpoints require the