Collective name for source and target

The context: I have 2 databases. The source database where I retrieve data and the target database where I insert data.

What is the collective name I can use for source and target in this context? Target can also be called destination.


Endpoint may work:

Merriam-Webster:

    either of two points or values that mark the ends of a line segment or interval

Wikipedia:

    either of the two nodes of a graph; either of two extreme points on a line segment