# Merchant webhooks service API

This is an API reference for the merchant webhooks service.

Version: 1.0.0

## Servers

Production environment
```
https://api-services.pxp.io/api/v1
```

Sandbox environment
```
https://api-services.test.pxp.io/api/v1
```

## Security

### PXP-UST1

PXP-UST1 authentication with HMAC-SHA256 signature. Format: PXP-UST1 {tokenId}:{timestamp}:{hmac}

Type: apiKey
In: header
Name: Authorization

## Download OpenAPI description

[Merchant webhooks service API](https://developer.pxp.io/_bundle/apis/merchant-webhook.yaml)

## Other

### Process a merchant webhook

 - [POST /merchant-webhooks](https://developer.pxp.io/apis/merchant-webhook/other/process-merchant-webhook.md): The /merchant-webhooks endpoint is designed for real-time notifications about transaction events, enabling you to automatically receive updates on transaction statuses such as authorisations, captures, and cancellations.