1. Login into Braintree account -> Settings -> API
2. Click on Webhooks -> “Create New Webhook”
3. Add Webhook URL from the integration document:
4. Choose all the “Notifications” and click “Create Webhook”
5. Open “Keys” menu and click “+ Generate New API Key”
6. After generation new API key, click on “View” and copy “Public Key”, “Private Key”, “Merchant ID” to the integration document