To get started with Cerb on Zapier, you'll connect your Cerb account as part of configuring your zap:
You'll then have the option to give that account a name in Zapier and provide the needed account details for ChargeOver.
In ChargeOver, the necessary info will be under Configuration, at "API and Webhoooks"
At that page you'll set API Credentials to Yes, which will then generate a Public Key/Username and Private Key/Password to use in your zap. Make sure the "Auth Method" is set to "HTTP Basic".
After including your API Endpoint URL as well, your zap will test the new connection, and if there aren't any errors, you're good to go with ChargeOver in your zap!