@loontail/minecraft-kitMinecraft launcher kit

Stateless TypeScript library and CLI for Minecraft install, verify, repair, launch, auth, and skins.

Library + CLI

One TypeScript facade and the same flows in mckit.

List and resolve Minecraft, Fabric, Forge, and Mojang runtimes.

Handles modern processor installers and legacy embedded universal installers.

OAuth 2.0 Authorization Code + PKCE over loopback; token storage stays in the host.

Set, upload, or reset skins through kit.auth.profile.*.

Discriminated-union onEvent payloads for long-running operations.

Per-aspect verifiers (minecraft / fabric / forge / runtime) with a repair flow that re-downloads only what's broken.

Writes only the files Minecraft expects — no profile registry, no session files.