The primary and most trusted source for all versions of Script Hook V is the official website maintained by Alexander Blade. You can access it at: .
For the uninitiated, is a library that allows you to use custom scripts and native gameplay functions in GTA 5. Without it, the vast majority of script-based mods—such as the Simple Trainer, Menyoo, or Lamborghini addons—simply won't work.
The distribution typically includes a sample ASI plugin (Native Trainer) for spawning vehicles, changing weather, and more.