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

# Introduction

> Add payments and subscriptions to your browser extensions without building your own backend. Focus on your extension, we'll handle the rest.

**crxbase** is a platform for **browser extension developers**, enabling them to add **Subscriptions** and **One-time payments** to their extensions <u>without building or hosting their own backend</u>.

It provides a javascript library that integrates with your extension, allowing you to check current user's active plans.

<Note>
  crxbase is currently in **closed beta**. <a href="https://tally.so/r/3Xv5ye">Request access</a> to get approved, then log in with the one-time
  code sent to your email.
</Note>

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/guides/overview/quickstart">
    Get started in minutes
  </Card>

  <Card title="Library" icon="code" href="/guides/library/setup">
    Integrate into your extension
  </Card>

  <Card title="Stripe setup" icon="credit-card" href="/guides/platform/stripe-setup">
    Connect your Stripe account
  </Card>

  <Card title="Examples" icon="grid" href="https://github.com/crxbase/examples">
    See example extensions
  </Card>
</CardGroup>