Thinkst Canary Slack App
Thinkst Canary customers are able to send their Canary alerts to their Slack (in addition to the multitude of other alerting mechanisms we support.)
With three clicks, your alerts can be forwarded to any channel or user on your Slack.
The alerts also include buttons that allow you to mark incidents as seen, and delete them when you're done.:
Installation instructions are available in the knowledge base.