The EarthCent Ambassador Series (12 books so far, all since 2014) feature a few different types of AI, the main one being the Strix. The Strix were created by a

The EarthCent Ambassador Series (12 books so far, all since 2014) feature a few different types of AI, the main one being the Strix. The Strix were created by an alien race to resist another AI created to fight a war but which got out of hand and had been taking over the galaxy. In the series the Strix keep the peace in a big chunk of the galaxy. I enjoy the series as fairly light and humorous reading where you know there will be a happy ending (if maybe "Deus ex Strix" sometimes). It indirectly raises some issue about what life would be like under a benevolent but superpowerful AI. The first one is "Date Night on Union Station (EarthCent Ambassador #1)" where one of the Strix decides to run a dating service... Humans in this series are the latest group to join "the tunnel network" run by the Strix and are essentially the most backward and naive species in the contacted galaxy; a lot of the stories revolve around humans gradually finding their footing on the galactic scene. I'm not sure I agree the market-driven exchange-based economic models in the series are feasible with so much technology and AI around, but I try to suspend disbelief on that for the humor and other enjoyable aspects.