In regards to Keen's SLAs, our general uptime can be viewed here: status.keen.io. 

Additionally there is information on general API limits here: https://keen.io/docs/api/#limits.

If you're wondering what our data-retention policy, please see our Terms of Service. The document can be quite a mouthful! In summary, we will not be deleting your data. 

You can find out more about our SLAs here.