For basic live monitoring -- https://www.shhgit.com/

It's possible to monitor them while pushing code, and to have a monitoring system deployed to track them.

I was thinking of open-sourcing our GitHubSniper tool, it basically has API regex from nearly a thousand SaaS and PaaS services and frequently posted sensitive strings, can be deployed via docker ;)

The only thing that stops me from releasing it is I have consistently earned more in bounties than the incentives of actually releasing it publicly. But will eventually release it :)