Is there an easy way to get the ip for an interface?

[diegospd]

With conky I would just use addr enp2s0, but I don't see an easy way to do that with monky.

[Ongy]

Sorry for the delay, I had been away from my projects for a while.

Kinda exists. There's the Monky.IP (not under Examples, it's a bit raw) module.
I never used it myself and kinda just build it after browsing through conky/dzen features.

It's not quite as simple and probably behaves a bit odd, but IPv4+IPv6 (including link-locals) makes IP-handling a bit harder in general IMO.
If you have a good idea what should be displayed in which state, I don't mind integrating it as full feature.