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

# Quickstart

> Start building with the Paywint API — from user creation to payments.

Integrate Paywint’s APIs to enable full payment capabilities — from user creation and verification to wallet funding, transfers, and payouts.\
This guide provides an end-to-end example using the **Sandbox environment** to help you make your first successful API calls.

<CardGroup cols={2}>
  <Card title="Authentication" icon="key" href="/get-started/authentication">
    Use your API key in the Authorization header to securely call Paywint endpoints.
  </Card>

  <Card title="Environments" icon="split" href="/get-started/environments">
    Run these requests in the Sandbox environment before going live.
  </Card>
</CardGroup>

***

## Monitor Real-Time Events

Paywint sends webhook notifications for important events such as:

* `user.verified`
* `wallet.funding.success`
* `payment.processing`
* `withdrawal.failed`

To learn how to verify webhook signatures and handle retries, visit the [Webhooks Overview](/webhooks/overview).

***

## Test and Go Live

<CardGroup cols={2}>
  <Card title="Test in Sandbox" icon="flask-vial" href="/get-started/environments">
    Validate your integration safely using sandbox credentials.
  </Card>

  <Card title="Go Live" icon="bullseye" href="/get-started/environments#production">
    Switch to your live API key to process real transactions.
  </Card>
</CardGroup>