If you're using Datadog with its AWS integration, you can pull in your billing metrics and set up anomaly detection monitoring. If you set it up as a multi-alert, Datadog can event alert you on the specific category that has a billing anomaly.
Use one opaque black box of costs to get clarity on another opaque black box of costs. I don't recommend this. Datadog very quickly adds on costs for things you have no idea you need or want. You have an additional "host parametrix double-channel provider" and it's an extra $200/month per 2000 items. 2000 items of what? I don't know but you are at 1900 now and there's still 10 days to go in the month. Also, to manage…
> now you're at $2189.48 and counting.
This is a wonderful bargain compared to the expense of hiring a full-time engineer (or more) to provision and maintain all the infrastructure that DD replaces.