While it's easy to add buy/sell systems for other currency mods with physical currency, it's not so straightforward with primarily digital currencies like EnderPay and Oxygen. There's a fantastic mod called Grand Economy that supports multiple currency mods and can act as a one-stop-shop for interfacing with them.
I understand not wanting to add individual support for the dozen or so currency mods out there, but adding support for just Grand Economy would essentially let you support EnderPay, Forge Essentials, Sponge, Oxygen, and potentially other currency systems with the minimum amount of work.
While it's easy to add buy/sell systems for other currency mods with physical currency, it's not so straightforward with primarily digital currencies like EnderPay and Oxygen. There's a fantastic mod called Grand Economy that supports multiple currency mods and can act as a one-stop-shop for interfacing with them.
I understand not wanting to add individual support for the dozen or so currency mods out there, but adding support for just Grand Economy would essentially let you support EnderPay, Forge Essentials, Sponge, Oxygen, and potentially other currency systems with the minimum amount of work.