BirdBrainRobotServer 1.60 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is an intellectual property of BirdBrain Technologies, LLC. The software relates to System Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
BirdBrain Robot Server is an application that allows Scratch and Snap! to connect to the Hummingbird and Finch hardware devices. You need to plug in a Finch or Hummingbird device, then run the BirdBrain Robot Server program. The app checks if you have a Finch and/or Hummingbird attached and provides a convenient way to launch the Snap! website.
You may want to check out more software for Mac, such as PodManager, SearchBar or iPhoneDisk, which might be similar to BirdBrainRobotServer.