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SPECIFICTION
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Hollow Knight Modding API

github.com

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Spec score 7.8 #10 of 26 in Game Mod Loaders

What it is

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.

Spec sheet

Purpose
It is a Hollow Knight modding API and loader used mainly for compatibility between mods.Read 8 Oct 2026 · github.com
Integrations
The installation instructions say users may use Scarab to install the API.Read 8 Oct 2026 · github.com
License
The project is distributed under the MIT license.Read 8 Oct 2026 · github.com
Documentation
The project links to API documentation on its DocFX site.Read 8 Oct 2026 · hk-modding.github.io
Download
The repository directs users to a release or installer to use the API or its mods.Read 8 Oct 2026 · github.com
Game compatibility
The latest listed release is ModdingAPI v77 for Hollow Knight 1.5.78.11833.Read 8 Oct 2026 · github.com
Implementation
The project says it uses MonoMod.Read 8 Oct 2026 · github.com
Installation
Users can copy the release zip contents into the Hollow Knight game folder or use Scarab.Read 8 Oct 2026 · github.com
Mod dependencies
The API does little on its own but is required for several mods to run.Read 8 Oct 2026 · github.com
Mod development
The repository includes examples for mod developers.Read 8 Oct 2026 · github.com
Security and warranty
The MIT license provides the software as-is and disclaims warranties and liability.Read 8 Oct 2026 · github.com
Supported operating systems
The latest listed release provides Windows, macOS, and Linux checksums.Read 8 Oct 2026 · github.com
Uninstallation
The README instructs Steam and GOG users to verify or repair the game installation to uninstall.Read 8 Oct 2026 · github.com

Plans and prices

Hollow Knight Modding API Free No paid tiers or usage limits stated Read 8 Oct 2026 · github.com

Every Hollow Knight Modding API plan and price →

Strong points and limits

Strong points

  • Free and open-source under the MIT license
  • Injection loading with load-order control
  • Examples and linked API documentation for developers
  • Windows, Linux, and macOS checksums provided
  • Scarab installation option

Limits

  • Does little without dependent mods
  • Supports only Hollow Knight
  • MIT license disclaims warranties and liability
  • Removal requires verifying or repairing game files

Who it suits

This is for Hollow Knight players who need a compatibility layer for mods, and developers building Hollow Knight mods. It suits users on Windows, Linux, or macOS who can install through a release, installer, or Scarab.

Verdict

The API is a supporting component rather than a standalone mod. Its compatibility role, injection loader, documentation, and cross-platform release make it useful when other Hollow Knight mods require this dependency.

Where Specifiction places it

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