> For the complete documentation index, see [llms.txt](https://docs.0xprocessing.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.0xprocessing.com/basic/introduction-guide/webhooks-flow.md).

# Webhooks flow

Use webhooks to automate updates for deposits, withdrawals, and real-time transactions, streamlining your crypto payment operations with instant notifications.

Information about incoming payments and withdrawals is available in the Merchant dashboard and through webhooks, which send real-time notifications to the Merchant's configured URL.

The Merchant can set up a webhook URL under Settings → API and receive JSON notifications about incoming payments and withdrawals.

Whenever a cryptocurrency payment is received or a withdrawal is completed, the Merchant receives a webhook containing the transaction details:

* status
* currency
* amount
* USD amount
* blockchain transaction's hash
* address
* Merchants Client ID
* Merchants ID
* Signature
* ...and so on

{% hint style="warning" %}

#### Attention

The Merchant should validate the webhook signature and the values of known parameters to reduce the risk of fraudulent activity.
{% endhint %}

{% hint style="info" %}
After validating the webhook successfully, the Merchant should respond with HTTP status code 200 OK. No additional parameters are required in the response body.

Our server expects a response to the webhook within a **3-second** timeout period. If the response is not received within these 3 seconds, the system considers the delivery failed.

If the Merchant endpoint does not validate the webhook, the system repeats delivery 31 times at 15-second intervals. If delivery still fails, the system sends an email notifying the Merchant about a problem with the webhook URL.
{% endhint %}

For webhook integration instructions, see [Setting up Webhooks](/quick-start/setting-up-webhooks.md).

For API details, see [Webhooks](/0xprocessing-api-v1/webhooks.md).