EventBridge infinite loop calling API Gateway

It might be helpful to show the cron expression that is being used.

Is the API Gateway invocation succeeding? If it fails you might find that EventBridge will retry the operation.

This is the cron expression: cron(10 * * * ? *).

The API Gateway was failing and it was retrying but I also saw the same behavior on success from API Gateway.

That expression means that your API is being triggered at 10 minutes past the hour, every hour of the day.

Looking at the documentation you probably want something like `(0 10 * * ? *) which runs at 10AM UTC every day.