Crypto.com

Log in to your Crypto.com Pay merchant dashboard and open your developer or API settings.
Copy your Secret key.
Add it into the admin panel under Settings > Payments > Processors > Crypto.com.
In your Crypto.com Pay webhook settings, configure the webhook URL from the admin panel.
Subscribe to payment.captured and payment.cancelled, then copy the matching signature secret into Settings > Payments > Processors > Crypto.com > Webhook secret.