Version: 0.40.0 Alpha Changelog License Wiki
ABOUT
SMAPI (Stardew Modding Application Programming Interface) is a tool to help modders make changes to Stardew. It is a standalone executable which goes alongside your Stardew.exe.
REQUIREMENTS
Microsoft .NET Framework 4.6.1
INSTALLATION
  1. Make sure all requirements are installed.
  2. Extract the SMAPI zip archive alongside your Stardew.exe. For example, if using Steam this would be somewhere like ‘C:/ProgramFiles/Steam/steamapps/common/StardewValley’.
  3. To launch SMAPI, launch StardewModdingAPI.exe.
FUTURE PLANS
  • Content only mods.
  • Support for a wide range of events.
  • Enable the addition of new custom content such as locations, NPCs, and items.
MOD DEVELOPERS
Mod developers would work off the release branch. The master branch will contain mid-version updates which could make your mods incompatable with both the current release and the upcoming releases. You should also take a look at the Wiki for some quick modding tutorials.