From the Boston Dynamics blog post on the topic:
OPEN SOURCING SPOT’S SOFTWARE DEVELOPMENT KIT
At Boston Dynamics, we want to build on the momentum of these developers. Starting today, the Spot Software Development Kit (SDK) will be publicly available to view on Github, so that interested developers can see what’s available on the platform as soon as possible. The SDK enables a broad range of developers and non-traditional roboticists to communicate with the robot and develop custom applications that enable Spot to do useful tasks across a wide range of industries. From VR control to automated registration of laser-scanning, connecting Spot’s data to cloud work order services, using Edge computing to help Spot semantically understand its environment, and much more, the possibilities of integrations on Spot are many.
And here’s the actual SDK:
Just need someone to spot you a robot you can code against