# Gemachain SDK Use the Gemachain SDK Crate to write client side applications in Rust. If writing on-chain programs, use the [Gemachain Program Crate](https://crates.io/crates/gemachain-program) instead. More information about Gemachain is available in the [Gemachain documentation](https://docs.gemachain.com/). The [Gemachain Program Library](https://github.com/gemacoin/gemachain-program-library) provides examples of how to use this crate. Still have questions? Ask us on [Discord](https://discordapp.com/invite/pquxPsq)