By far the best integration with other services I have seen is Slack. Being able to connect Jenkins, GitHub, Trello, Stripe, and custom build scripts. The reaso

By far the best integration with other services I have seen is Slack. Being able to connect Jenkins, GitHub, Trello, Stripe, and custom build scripts. The reason, IMHO, that it works so well is that all the integrations behave natively in Slack without being obtrusively different. They did a great job with integrations, and the ability to communicate with these integrations, i.e. start a Jenkins job, from inside Slack makes it even better.