Hollow Knight Modding API vs SMAPI

Hollow Knight Modding API is a free, open-source API and loader for Hollow Knight modifications. Its primary purpose is helping mods work together; it does little independently, but several mods require it to run. Loading uses injection, and the project provides load-order control. The implementation uses MonoMod. The repository includes examples for mod developers and links to API documentation on a DocFX site. Users can obtain a release or installer, then copy release ZIP contents into the Hollow Knight game folder or install through Scarab. The latest listed release is ModdingAPI v77 for Hollow Knight 1.5.78.11833, with checksums for Windows, macOS, and Linux. The supported game is Hollow Knight, and supported operating systems are Windows, Linux, and macOS. The project is distributed under the MIT license, which supplies the software as-is and disclaims warranties and liability. Steam and GOG users are instructed to verify or repair the game installation when removing it. There are no paid tiers or usage limits stated.

SMAPI is a mod loader for Stardew Valley, with plugin support, mod profiles, dependency handling, and load-order control. Its listed plan costs nothing. SMAPI supports Linux, macOS, Windows, Steam Deck, and Android, and is compatible with GOG and Steam achievements. The stated requirement is Stardew Valley 1.6.14 or later on Linux, macOS, Windows, or Steam Deck. Version 4.5 adds in-game configuration, performance improvements, automated and attested builds, and detection of malicious files. SMAPI.io also provides modding documentation and source code for creators, plus a mod compatibility list, log parser, JSON validator, and mod stats page. The parser can analyze and share submitted logs and show suggested fixes for common issues. The compatibility list is no longer comprehensively updated each month, and its future is uncertain. Update checks send game, SMAPI, and mod versions as well as platform type, but users can disable them. Log and JSON submissions are stored in obfuscated form for 30 days. The maker says SMAPI can be uninstalled at any time and points users to Discord and Reddit for community help.