$ChannelBase
gives the base URL of the server to use for brokering channel communications.
Examples
open allclose allProperties & Relations (1)
$CloudBase is the base for the Wolfram Cloud:
Wolfram Research (2016), $ChannelBase, Wolfram Language function, https://reference.wolfram.com/language/ref/$ChannelBase.html (updated 2020).
Text
Wolfram Research (2016), $ChannelBase, Wolfram Language function, https://reference.wolfram.com/language/ref/$ChannelBase.html (updated 2020).
CMS
Wolfram Language. 2016. "$ChannelBase." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/$ChannelBase.html.
APA
Wolfram Language. (2016). $ChannelBase. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$ChannelBase.html