Eaglercraft supports resource packs. You can create a "fake" resource pack that makes all non-ore blocks transparent.
Hacks For Eaglercraft 1-5-2 is a software package that claims to offer a range of features to improve gameplay on Eaglercraft servers. These features typically include items such as auto-clicking, fly hacks, and ESP (Extra Sensory Perception) capabilities, among others. The intention behind these tools seems to be to streamline gameplay, allowing users to build, explore, and survive more efficiently. Hacks For Eaglercraft 1-5-2
In Beta 1.5.2, server movement validation is primitive. Eaglercraft supports resource packs