Automatically creating and configuring services endpoints

Hi folks,

I've got hundreds of sites communicating with each other using the old services 2 xml-rpc system, which of course is unsupported. I'd like to move to services 3, and I've got all my API calls working with 2-legged OAuth.

However with hundreds of sites I can't set them all up manually! I need to automate that step. I can reverse-engineer the contents of the various database tables and write my own code to add the necessary rows to those tables on all my sites, but that's going to need maintenance whenever the schema changes. I'd rather use the module's function calls, or define the endpoint etc. in code if I can.

Has anyone done this already? Any advice about the best way?

Thanks,
Tom