Private Message API Support?

Just to give a bit of extra context behind my reason of why it would be useful. Currently the team I work for, support our customers through different platforms; Twitter, Facebook and Support Forums. The tool we use to support them has API integration with these platforms and our agents are able to help them from one place. If we had no way to integrate through API, then it would be harder for us to track the work they do and keep records of interactions. Right now we are still just considering if support for twitch would be even posible and if we had the API to integrate it to our tools it would make it a bit easier to sell the case.