Yes, indeed! Currently you can already using the Prometheus remote_write API as discussed here: https://news.ycombinator.com/item?id=25992392. So if you can collect your in-house metrics with Prometheus, then you could write to Opstrace.
Additionally, we are close to launching a Datadog API as mentioned here: https://news.ycombinator.com/item?id=25994268
So stay tuned to our blog or newsletter for more on this.
Are there other specific APIs you’re interested in?