# zkSync SDK
zkSync support has been implemented for various platforms:
- Android (Java)
- iOS (Swift)
- Dart This is an unofficial open-sourced SDK for zkSync
# Ecosystem libraries
This section also covers the ecosystem libraries we maintain:
- Cryptographic backends: support of zkSync cryptography in different programming languages.
- zkCheckout: TypeScript library to integrate zkSync payments for your application.
- Schnorr MuSig (opens new window): Rust / WASM library for multisignature support.